✨ feat(TableOverview): 新增表平铺视图概览功能

- 新建 TableOverview 组件：卡片网格展示表名、注释、行数、数据大小、引擎
- 数据获取：通过 DBQuery 发 SHOW TABLE STATUS 等 SQL 适配多数据库方言
- 交互功能：搜索过滤、按名称/行数/大小排序、双击打开DataGrid、Tooltip悬浮全名
- 右键菜单：与 Sidebar 完全一致（新建查询/设计表/复制结构/备份/重命名/删除/导出）
- 入口集成：双击侧边栏"表(N)"分组节点打开概览Tab，注册table-overview类型
- UI细节：统计指标固定列宽对齐，卡片hover高亮边框

.github/workflows/release-winget.yml

@@ -10,6 +10,9 @@ on:
         description: 'Tag of release you want to publish'
         type: string
 
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"
+
 jobs:
   publish:
     runs-on: windows-latest

.github/workflows/release.yml

@@ -8,6 +8,9 @@ on:
 permissions:
   contents: write
 
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"
+
 jobs:
   # Phase 1: Build in parallel and output artifacts
   build:
@@ -88,23 +91,25 @@ jobs:
         with:
           node-version: '20'
 
-      - name: Install UPX (macOS)
-        if: contains(matrix.platform, 'darwin')
-        run: |
-          brew install upx
-          upx --version
-
       - name: Install UPX (Windows)
         if: contains(matrix.platform, 'windows')
         shell: pwsh
         run: |
-          choco install upx --no-progress -y
-          $upxCmd = Get-Command upx -ErrorAction SilentlyContinue
-          if ($null -eq $upxCmd) {
+          $UPX_VERSION = "4.2.4"
+          $url = "https://github.com/upx/upx/releases/download/v${UPX_VERSION}/upx-${UPX_VERSION}-win64.zip"
+          $zipPath = "$env:RUNNER_TEMP\upx.zip"
+          $extractPath = "$env:RUNNER_TEMP\upx"
+          Write-Host "📥 从 GitHub Releases 下载 UPX v${UPX_VERSION} ..."
+          Invoke-WebRequest -Uri $url -OutFile $zipPath -UseBasicParsing
+          Expand-Archive -Path $zipPath -DestinationPath $extractPath -Force
+          $upxDir = Get-ChildItem -Path $extractPath -Directory | Select-Object -First 1
+          "$($upxDir.FullName)" | Out-File -FilePath $env:GITHUB_PATH -Append -Encoding utf8
+          $upxCmd = Join-Path $upxDir.FullName "upx.exe"
+          if (!(Test-Path $upxCmd)) {
             Write-Error "❌ 未检测到 upx，无法保证 Windows 产物经过压缩"
             exit 1
           }
-          & upx --version
+          & $upxCmd --version
 
       # Linux Dependencies (GTK3, WebKit2GTK required by Wails)
       - name: Install Linux Dependencies
@@ -301,20 +306,10 @@ jobs:
 
           APP_BIN=$(find "$APP_PATH/Contents/MacOS" -maxdepth 1 -type f | head -n 1)
           if [ -z "$APP_BIN" ]; then
-            echo "❌ 未找到 macOS 应用主程序，无法进行 UPX 压缩!"
+            echo "❌ 未找到 macOS 应用主程序!"
             exit 1
           fi
-          BEFORE_BYTES=$(wc -c <"$APP_BIN" | tr -d '[:space:]')
-          echo "🗜️ 正在使用 UPX 压缩 macOS 可执行文件: $APP_BIN ..."
-          upx --best --lzma --force "$APP_BIN"
-          upx -t "$APP_BIN"
-          AFTER_BYTES=$(wc -c <"$APP_BIN" | tr -d '[:space:]')
-          if [ "$AFTER_BYTES" -lt "$BEFORE_BYTES" ]; then
-            SAVED_BYTES=$((BEFORE_BYTES - AFTER_BYTES))
-            awk -v b="$BEFORE_BYTES" -v a="$AFTER_BYTES" -v s="$SAVED_BYTES" 'BEGIN { printf "✅ macOS UPX 压缩完成：%.2fMB -> %.2fMB，减少 %.2fMB\n", b/1024/1024, a/1024/1024, s/1024/1024 }'
-          else
-            awk -v b="$BEFORE_BYTES" -v a="$AFTER_BYTES" 'BEGIN { printf "ℹ️ macOS UPX 压缩完成：%.2fMB -> %.2fMB\n", b/1024/1024, a/1024/1024 }'
-          fi
+          echo "ℹ️ macOS 产物不执行 UPX 压缩，保留原始主程序。"
           
           echo "🔏 正在进行 Ad-hoc 签名..."
           # 注意：Ad-hoc + hardened runtime（--options runtime）在未配置 entitlements 时，
@@ -361,21 +356,35 @@ jobs:
               exit 1
           }
 
-          $upxCmd = Get-Command upx -ErrorAction SilentlyContinue
-          if ($null -eq $upxCmd) {
-              Write-Error "❌ 未找到 upx，无法保证 Windows 产物经过压缩"
-              exit 1
-          }
-          $beforeBytes = (Get-Item -LiteralPath $finalExe).Length
-          Write-Host "🗜️ 使用 UPX 压缩 $finalExe ..."
-          & upx --best --lzma --force $finalExe | Out-Host
-          & upx -t $finalExe | Out-Host
-          $afterBytes = (Get-Item -LiteralPath $finalExe).Length
-          if ($afterBytes -lt $beforeBytes) {
-              $savedBytes = $beforeBytes - $afterBytes
-              Write-Host ("✅ UPX 压缩完成：{0:N2}MB -> {1:N2}MB，减少 {2:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB), ($savedBytes / 1MB))
+          $isArm64Target = "${{ matrix.arch_name }}".ToLowerInvariant() -eq "arm64"
+          if ($isArm64Target) {
+              Write-Warning "⚠️ UPX 当前不支持 win64/arm64，跳过压缩并保留原始 EXE。"
+              $LASTEXITCODE = 0
           } else {
-              Write-Host ("ℹ️ UPX 压缩完成：{0:N2}MB -> {1:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB))
+              $upxCmd = Get-Command upx -ErrorAction SilentlyContinue
+              if ($null -eq $upxCmd) {
+                  Write-Error "❌ 未找到 upx，无法保证 Windows 产物经过压缩"
+                  exit 1
+              }
+              $beforeBytes = (Get-Item -LiteralPath $finalExe).Length
+              Write-Host "🗜️ 使用 UPX 压缩 $finalExe ..."
+              & upx --best --lzma --force $finalExe | Out-Host
+              if ($LASTEXITCODE -ne 0) {
+                  Write-Error "❌ UPX 压缩失败（$LASTEXITCODE）"
+                  exit 1
+              }
+              & upx -t $finalExe | Out-Host
+              if ($LASTEXITCODE -ne 0) {
+                  Write-Error "❌ UPX 校验失败（$LASTEXITCODE）"
+                  exit 1
+              }
+              $afterBytes = (Get-Item -LiteralPath $finalExe).Length
+              if ($afterBytes -lt $beforeBytes) {
+                  $savedBytes = $beforeBytes - $afterBytes
+                  Write-Host ("✅ UPX 压缩完成：{0:N2}MB -> {1:N2}MB，减少 {2:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB), ($savedBytes / 1MB))
+              } else {
+                  Write-Host ("ℹ️ UPX 压缩完成：{0:N2}MB -> {1:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB))
+              }
           }
 
           Write-Host "📦 输出 Windows 可执行文件 $finalExeName..."

.github/workflows/test-build-all-platforms.yml

@@ -1,4 +1,4 @@
-name: Test Build All Platforms (Manual)
+name: Test Build All Platforms (Manual)
 
 on:
   workflow_dispatch:
@@ -11,6 +11,9 @@ on:
 permissions:
   contents: read
 
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"
+
 concurrency:
   group: test-build-${{ github.ref }}
   cancel-in-progress: false
@@ -93,23 +96,25 @@ jobs:
         with:
           node-version: '20'
 
-      - name: Install UPX (macOS)
-        if: contains(matrix.platform, 'darwin')
-        run: |
-          brew install upx
-          upx --version
-
       - name: Install UPX (Windows)
         if: contains(matrix.platform, 'windows')
         shell: pwsh
         run: |
-          choco install upx --no-progress -y
-          $upxCmd = Get-Command upx -ErrorAction SilentlyContinue
-          if ($null -eq $upxCmd) {
+          $UPX_VERSION = "4.2.4"
+          $url = "https://github.com/upx/upx/releases/download/v${UPX_VERSION}/upx-${UPX_VERSION}-win64.zip"
+          $zipPath = "$env:RUNNER_TEMP\upx.zip"
+          $extractPath = "$env:RUNNER_TEMP\upx"
+          Write-Host "📥 从 GitHub Releases 下载 UPX v${UPX_VERSION} ..."
+          Invoke-WebRequest -Uri $url -OutFile $zipPath -UseBasicParsing
+          Expand-Archive -Path $zipPath -DestinationPath $extractPath -Force
+          $upxDir = Get-ChildItem -Path $extractPath -Directory | Select-Object -First 1
+          "$($upxDir.FullName)" | Out-File -FilePath $env:GITHUB_PATH -Append -Encoding utf8
+          $upxCmd = Join-Path $upxDir.FullName "upx.exe"
+          if (!(Test-Path $upxCmd)) {
             Write-Error "❌ 未检测到 upx，无法保证 Windows 测试产物经过压缩"
             exit 1
           }
-          & upx --version
+          & $upxCmd --version
 
       - name: Install Linux Dependencies
         if: contains(matrix.platform, 'linux')
@@ -265,20 +270,10 @@ jobs:
           APP_NAME=$(basename "$APP_PATH")
           APP_BIN=$(find "$APP_PATH/Contents/MacOS" -maxdepth 1 -type f | head -n 1)
           if [ -z "$APP_BIN" ]; then
-            echo "未找到 macOS 应用主程序，无法进行 UPX 压缩"
+            echo "未找到 macOS 应用主程序"
             exit 1
           fi
-          BEFORE_BYTES=$(wc -c <"$APP_BIN" | tr -d '[:space:]')
-          echo "🗜️ 使用 UPX 压缩 macOS 可执行文件: $APP_BIN ..."
-          upx --best --lzma --force "$APP_BIN"
-          upx -t "$APP_BIN"
-          AFTER_BYTES=$(wc -c <"$APP_BIN" | tr -d '[:space:]')
-          if [ "$AFTER_BYTES" -lt "$BEFORE_BYTES" ]; then
-            SAVED_BYTES=$((BEFORE_BYTES - AFTER_BYTES))
-            awk -v b="$BEFORE_BYTES" -v a="$AFTER_BYTES" -v s="$SAVED_BYTES" 'BEGIN { printf "✅ macOS UPX 压缩完成：%.2fMB -> %.2fMB，减少 %.2fMB\n", b/1024/1024, a/1024/1024, s/1024/1024 }'
-          else
-            awk -v b="$BEFORE_BYTES" -v a="$AFTER_BYTES" 'BEGIN { printf "ℹ️ macOS UPX 压缩完成：%.2fMB -> %.2fMB\n", b/1024/1024, a/1024/1024 }'
-          fi
+          echo "ℹ️ macOS 产物不执行 UPX 压缩，保留原始主程序。"
           codesign --force --deep --sign - "$APP_NAME"
           ZIP_NAME="GoNavi-${LABEL}-${{ matrix.os_name }}-${{ matrix.arch_name }}-run${GITHUB_RUN_NUMBER}.zip"
           DMG_NAME="GoNavi-${LABEL}-${{ matrix.os_name }}-${{ matrix.arch_name }}-run${GITHUB_RUN_NUMBER}.dmg"
@@ -316,21 +311,35 @@ jobs:
             Write-Error "未找到构建产物 '$target'"
             exit 1
           }
-          $upxCmd = Get-Command upx -ErrorAction SilentlyContinue
-          if ($null -eq $upxCmd) {
-            Write-Error "❌ 未找到 upx，无法保证 Windows 测试产物经过压缩"
-            exit 1
-          }
-          $beforeBytes = (Get-Item -LiteralPath $finalExe).Length
-          Write-Host "🗜️ 使用 UPX 压缩 $finalExe ..."
-          & upx --best --lzma --force $finalExe | Out-Host
-          & upx -t $finalExe | Out-Host
-          $afterBytes = (Get-Item -LiteralPath $finalExe).Length
-          if ($afterBytes -lt $beforeBytes) {
-            $savedBytes = $beforeBytes - $afterBytes
-            Write-Host ("✅ UPX 压缩完成：{0:N2}MB -> {1:N2}MB，减少 {2:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB), ($savedBytes / 1MB))
+          $isArm64Target = "${{ matrix.arch_name }}".ToLowerInvariant() -eq "arm64"
+          if ($isArm64Target) {
+            Write-Warning "⚠️ UPX 当前不支持 win64/arm64，跳过压缩并保留原始 EXE。"
+            $LASTEXITCODE = 0
           } else {
-            Write-Host ("ℹ️ UPX 压缩完成：{0:N2}MB -> {1:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB))
+            $upxCmd = Get-Command upx -ErrorAction SilentlyContinue
+            if ($null -eq $upxCmd) {
+              Write-Error "❌ 未找到 upx，无法保证 Windows 测试产物经过压缩"
+              exit 1
+            }
+            $beforeBytes = (Get-Item -LiteralPath $finalExe).Length
+            Write-Host "🗜️ 使用 UPX 压缩 $finalExe ..."
+            & upx --best --lzma --force $finalExe | Out-Host
+            if ($LASTEXITCODE -ne 0) {
+              Write-Error "❌ UPX 压缩失败（$LASTEXITCODE）"
+              exit 1
+            }
+            & upx -t $finalExe | Out-Host
+            if ($LASTEXITCODE -ne 0) {
+              Write-Error "❌ UPX 校验失败（$LASTEXITCODE）"
+              exit 1
+            }
+            $afterBytes = (Get-Item -LiteralPath $finalExe).Length
+            if ($afterBytes -lt $beforeBytes) {
+              $savedBytes = $beforeBytes - $afterBytes
+              Write-Host ("✅ UPX 压缩完成：{0:N2}MB -> {1:N2}MB，减少 {2:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB), ($savedBytes / 1MB))
+            } else {
+              Write-Host ("ℹ️ UPX 压缩完成：{0:N2}MB -> {1:N2}MB" -f ($beforeBytes / 1MB), ($afterBytes / 1MB))
+            }
           }
           New-Item -ItemType Directory -Force -Path ..\..\artifacts | Out-Null
           Copy-Item -LiteralPath $finalExe -Destination "..\..\artifacts\$finalExeName" -Force

.github/workflows/test-macos-build.yml

@@ -16,6 +16,9 @@ on:
 permissions:
   contents: read
 
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"
+
 jobs:
   build-macos:
     name: Build macOS ${{ matrix.arch }}

.gitignore

@@ -17,8 +17,10 @@ dist/
 GoNavi-Wails
 GoNavi-Wails.exe
 .ace-tool/
+.superpowers/
 .claude/
-tmpclaude-*
+.gemini/
+**/tmpclaude-*
 
 CLAUDE.md
 **/CLAUDE.md

build-release.sh

@@ -108,9 +108,9 @@ if [ $? -eq 0 ]; then
 
     APP_BIN_PATH=$(find "$DIST_DIR/$APP_DEST_NAME/Contents/MacOS" -maxdepth 1 -type f -print -quit)
     if [ -n "$APP_BIN_PATH" ] && [ -f "$APP_BIN_PATH" ]; then
-        try_compress_binary_with_upx "$APP_BIN_PATH" "macOS arm64 应用主程序"
+        echo -e "${YELLOW}   ⚠️  macOS arm64 不再执行 UPX 压缩，保留原始主程序。${NC}"
     else
-        echo -e "${RED}   ❌ 未找到 macOS arm64 主程序文件，无法执行 UPX 压缩。${NC}"
+        echo -e "${RED}   ❌ 未找到 macOS arm64 主程序文件。${NC}"
         exit 1
     fi
     
@@ -215,9 +215,9 @@ if [ $? -eq 0 ]; then
 
     APP_BIN_PATH=$(find "$DIST_DIR/$APP_DEST_NAME/Contents/MacOS" -maxdepth 1 -type f -print -quit)
     if [ -n "$APP_BIN_PATH" ] && [ -f "$APP_BIN_PATH" ]; then
-        try_compress_binary_with_upx "$APP_BIN_PATH" "macOS amd64 应用主程序"
+        echo -e "${YELLOW}   ⚠️  macOS amd64 不再执行 UPX 压缩，保留原始主程序。${NC}"
     else
-        echo -e "${RED}   ❌ 未找到 macOS amd64 主程序文件，无法执行 UPX 压缩。${NC}"
+        echo -e "${RED}   ❌ 未找到 macOS amd64 主程序文件。${NC}"
         exit 1
     fi
     
@@ -327,7 +327,7 @@ if command -v aarch64-w64-mingw32-gcc &> /dev/null; then
     if [ $? -eq 0 ]; then
         TARGET_EXE="$DIST_DIR/${APP_NAME}-${VERSION}-windows-arm64.exe"
         mv "$BUILD_BIN_DIR/${DEFAULT_BINARY_NAME}.exe" "$TARGET_EXE"
-        try_compress_binary_with_upx "$TARGET_EXE" "Windows arm64 可执行文件"
+        echo -e "${YELLOW}   ⚠️  当前 UPX 不支持 win64/arm64，跳过 Windows arm64 压缩。${NC}"
         echo "   ✅ 已生成 ${APP_NAME}-${VERSION}-windows-arm64.exe"
     else
         echo -e "${RED}   ❌ Windows arm64 构建失败。${NC}"

frontend/src/App.css

@@ -37,6 +37,91 @@ body, #root {
   padding-right: 8px;
 }
 
+.redis-viewer-workbench .ant-tree {
+    background: transparent;
+}
+
+.redis-viewer-workbench .ant-tree .ant-tree-list-holder-inner,
+.redis-viewer-workbench .ant-tree .ant-tree-list-holder-inner .ant-tree-treenode {
+    width: 100% !important;
+}
+
+.redis-viewer-workbench .ant-tree .ant-tree-node-content-wrapper {
+    min-height: 36px;
+    border-radius: 14px;
+    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
+    background: transparent !important;
+    border: none !important;
+    box-shadow: none !important;
+    outline: none !important;
+    flex: 1 1 auto;
+    min-width: 0;
+    width: auto !important;
+}
+
+.redis-viewer-workbench .ant-tree .ant-tree-node-content-wrapper:hover,
+.redis-viewer-workbench .ant-tree .ant-tree-node-content-wrapper:active,
+.redis-viewer-workbench .ant-tree .ant-tree-node-content-wrapper:focus,
+.redis-viewer-workbench .ant-tree .ant-tree-node-content-wrapper:focus-visible,
+.redis-viewer-workbench .ant-tree .ant-tree-node-content-wrapper.ant-tree-node-selected,
+.redis-viewer-workbench .ant-tree .ant-tree-node-content-wrapper.ant-tree-node-selected:hover {
+    background: transparent !important;
+    border-color: transparent !important;
+    box-shadow: none !important;
+    outline: none !important;
+}
+
+.redis-viewer-workbench .ant-tree .ant-tree-treenode {
+    padding: 2px 0;
+    width: 100%;
+    border-radius: 14px;
+    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
+    border: none;
+    align-items: center;
+    position: relative;
+    z-index: 0;
+    display: flex !important;
+    box-sizing: border-box;
+}
+
+.redis-viewer-workbench .ant-tree .ant-tree-switcher {
+    width: 0 !important;
+    min-width: 0 !important;
+    margin-inline-end: 0 !important;
+    padding: 0 !important;
+    overflow: hidden !important;
+    background: transparent !important;
+}
+
+.redis-viewer-workbench .ant-tree .ant-tree-switcher:hover,
+.redis-viewer-workbench .ant-tree .ant-tree-switcher:active,
+.redis-viewer-workbench .ant-tree .ant-tree-switcher:focus {
+    background: transparent !important;
+}
+
+.redis-viewer-workbench .redis-tree-expander-button:hover,
+.redis-viewer-workbench .redis-tree-expander-button:focus-visible {
+    background: transparent !important;
+    outline: none;
+}
+
+.redis-viewer-workbench .ant-radio-group .ant-radio-button-wrapper {
+    border-radius: 10px;
+    margin-inline-end: 6px;
+}
+
+.redis-viewer-workbench .ant-radio-group .ant-radio-button-wrapper:last-child {
+    margin-inline-end: 0;
+}
+
+.redis-viewer-workbench .ant-table {
+    background: transparent;
+}
+
+.redis-viewer-workbench .ant-table-wrapper .ant-table-thead > tr > th {
+    font-weight: 700;
+}
+
 /* Scrollbar styling for dark mode */
 body[data-theme='dark'] ::-webkit-scrollbar {
     width: 10px;
@@ -97,6 +182,16 @@ body[data-theme='dark'] .ant-tree .ant-tree-node-content-wrapper.ant-tree-node-s
     color: rgba(255, 236, 179, 0.98) !important;
 }
 
+body[data-theme='dark'] .redis-viewer-workbench .ant-tree .ant-tree-treenode:hover {
+    background: rgba(255, 255, 255, 0.05) !important;
+}
+
+body[data-theme='dark'] .redis-viewer-workbench .ant-tree .ant-tree-treenode.ant-tree-treenode-selected,
+body[data-theme='dark'] .redis-viewer-workbench .ant-tree .ant-tree-treenode.ant-tree-treenode-selected:hover {
+    background: linear-gradient(90deg, rgba(246, 196, 83, 0.22), rgba(246, 196, 83, 0.08)) !important;
+    border: 1px solid rgba(246, 196, 83, 0.24) !important;
+}
+
 body[data-theme='dark'] .ant-checkbox-checked .ant-checkbox-inner {
     background-color: #f6c453 !important;
     border-color: #f6c453 !important;
@@ -135,6 +230,41 @@ body[data-theme='dark'] .ant-table-tbody .ant-table-row.ant-table-row-selected:h
     background: rgba(246, 196, 83, 0.26) !important;
 }
 
+body[data-theme='dark'] .redis-viewer-workbench .ant-radio-button-wrapper {
+    background: rgba(255, 255, 255, 0.04);
+    border-color: rgba(255, 255, 255, 0.08);
+    color: rgba(230, 234, 242, 0.9);
+}
+
+body[data-theme='dark'] .redis-viewer-workbench .ant-radio-button-wrapper-checked:not(.ant-radio-button-wrapper-disabled) {
+    background: rgba(246, 196, 83, 0.16);
+    border-color: rgba(246, 196, 83, 0.3);
+    color: #f6c453;
+}
+
+body[data-theme='light'] .redis-viewer-workbench .ant-tree .ant-tree-treenode:hover {
+    background: rgba(15, 23, 42, 0.04) !important;
+}
+
+body[data-theme='light'] .redis-viewer-workbench .ant-tree .ant-tree-treenode.ant-tree-treenode-selected,
+body[data-theme='light'] .redis-viewer-workbench .ant-tree .ant-tree-treenode.ant-tree-treenode-selected:hover {
+    color: rgba(15, 23, 42, 0.92) !important;
+    background: linear-gradient(90deg, rgba(22, 119, 255, 0.12), rgba(22, 119, 255, 0.04)) !important;
+    border: 1px solid rgba(22, 119, 255, 0.18) !important;
+}
+
+body[data-theme='light'] .redis-viewer-workbench .ant-radio-button-wrapper {
+    background: rgba(255, 255, 255, 0.72);
+    border-color: rgba(15, 23, 42, 0.08);
+    color: rgba(51, 65, 85, 0.88);
+}
+
+body[data-theme='light'] .redis-viewer-workbench .ant-radio-button-wrapper-checked:not(.ant-radio-button-wrapper-disabled) {
+    background: rgba(22, 119, 255, 0.1);
+    border-color: rgba(22, 119, 255, 0.22);
+    color: #1677ff;
+}
+
 /* 连接配置弹窗：滚动仅在弹窗 body 内部，不使用外层 wrap 滚动条 */
 .connection-modal-wrap {
     overflow: hidden !important;

frontend/src/App.tsx

@@ -1,8 +1,8 @@
 import React, { useState, useEffect, useMemo } from 'react';
-import { Layout, Button, ConfigProvider, theme, Dropdown, MenuProps, message, Modal, Spin, Slider, Progress, Switch, Input, InputNumber, Select } from 'antd';
+import { Layout, Button, ConfigProvider, theme, message, Modal, Spin, Slider, Progress, Switch, Input, InputNumber, Select } from 'antd';
 import zhCN from 'antd/locale/zh_CN';
 import { PlusOutlined, ConsoleSqlOutlined, UploadOutlined, DownloadOutlined, CloudDownloadOutlined, BugOutlined, ToolOutlined, GlobalOutlined, InfoCircleOutlined, GithubOutlined, SkinOutlined, CheckOutlined, MinusOutlined, BorderOutlined, CloseOutlined, SettingOutlined, LinkOutlined, BgColorsOutlined, AppstoreOutlined } from '@ant-design/icons';
-import { BrowserOpenURL, Environment, EventsOn, Quit, WindowFullscreen, WindowGetSize, WindowIsFullscreen, WindowIsMaximised, WindowMaximise, WindowMinimise, WindowSetSize, WindowToggleMaximise } from '../wailsjs/runtime';
+import { BrowserOpenURL, Environment, EventsOn, Quit, WindowFullscreen, WindowGetSize, WindowIsFullscreen, WindowIsMaximised, WindowMaximise, WindowMinimise, WindowSetSize, WindowToggleMaximise, WindowUnfullscreen } from '../wailsjs/runtime';
 import Sidebar from './components/Sidebar';
 import TabManager from './components/TabManager';
 import ConnectionModal from './components/ConnectionModal';
@@ -12,6 +12,7 @@ import LogPanel from './components/LogPanel';
 import { useStore } from './store';
 import { SavedConnection } from './types';
 import { blurToFilter, normalizeBlurForPlatform, normalizeOpacityForPlatform, isWindowsPlatform, resolveAppearanceValues } from './utils/appearance';
+import { buildOverlayWorkbenchTheme } from './utils/overlayWorkbenchTheme';
 import {
   SHORTCUT_ACTION_META,
   SHORTCUT_ACTION_ORDER,
@@ -88,6 +89,7 @@ function App() {
   const [runtimePlatform, setRuntimePlatform] = useState('');
   const [isLinuxRuntime, setIsLinuxRuntime] = useState(false);
   const [isStoreHydrated, setIsStoreHydrated] = useState(() => useStore.persist.hasHydrated());
+  const [sidebarWidth, setSidebarWidth] = useState(330);
   const globalProxyInvalidHintShownRef = React.useRef(false);
 
   // 同步 macOS 窗口透明度：opacity=1.0 且 blur=0 时关闭 NSVisualEffectView，
@@ -218,6 +220,7 @@ function App() {
       const maxApplyAttempts = 6;
       const applyRetryDelayMs = 400;
       const settleDelayMs = 160;
+      const useMaximiseForStartup = isWindowsPlatform();
 
       const checkStartupPreferenceApplied = async (): Promise<boolean> => {
           try {
@@ -253,15 +256,21 @@ function App() {
                       if (await checkStartupPreferenceApplied()) {
                           return;
                       }
-                      // 优先尝试全屏，若当前平台/时机不生效，后续走最大化兜底。
+                      // Windows 使用最大化，避免进入真正全屏后无法通过标题栏交互退出。
+                      // 其他平台保持全屏优先、最大化兜底。
                       try {
-                          await WindowFullscreen();
-                          await new Promise((resolve) => window.setTimeout(resolve, settleDelayMs));
-                          if (await checkStartupPreferenceApplied()) {
-                              return;
+                          if (useMaximiseForStartup) {
+                              await WindowMaximise();
+                              await new Promise((resolve) => window.setTimeout(resolve, settleDelayMs));
+                          } else {
+                              await WindowFullscreen();
+                              await new Promise((resolve) => window.setTimeout(resolve, settleDelayMs));
+                              if (await checkStartupPreferenceApplied()) {
+                                  return;
+                              }
+                              await WindowMaximise();
+                              await new Promise((resolve) => window.setTimeout(resolve, settleDelayMs));
                           }
-                          await WindowMaximise();
-                          await new Promise((resolve) => window.setTimeout(resolve, settleDelayMs));
                       } catch (e) {
                           console.warn("Wails Window APIs unavailable", e);
                       }
@@ -434,7 +443,6 @@ function App() {
   const floatingLogButtonShadow = darkMode
       ? '0 8px 22px rgba(0,0,0,0.38)'
       : '0 8px 20px rgba(0,0,0,0.16)';
-
   const isOpaqueUtilityMode = resolvedAppearance.opacity >= 0.999 && resolvedAppearance.blur <= 0;
   const utilityButtonBgAlpha = darkMode
       ? Math.max(0.28, Math.min(0.76, effectiveOpacity * 0.72))
@@ -454,10 +462,13 @@ function App() {
       : (darkMode
           ? `0 8px 18px rgba(0,0,0,${Math.max(0.10, Math.min(0.22, effectiveOpacity * 0.24))})`
           : `0 8px 18px rgba(15,23,42,${Math.max(0.04, Math.min(0.12, effectiveOpacity * 0.12))})`);
+  const isSidebarNarrow = sidebarWidth < 360;
+  const isSidebarCompact = sidebarWidth < 320;
+  const isSidebarUltraCompact = sidebarWidth < 260;
   const utilityButtonStyle = useMemo(() => ({
       height: Math.max(30, Math.round(32 * effectiveUiScale)),
       width: '100%',
-      paddingInline: Math.max(10, Math.round(12 * effectiveUiScale)),
+      paddingInline: isSidebarCompact ? Math.max(8, Math.round(9 * effectiveUiScale)) : Math.max(10, Math.round(12 * effectiveUiScale)),
       borderRadius: 10,
       border: `1px solid ${utilityButtonBorderColor}`,
       background: utilityButtonBgColor,
@@ -468,17 +479,14 @@ function App() {
       display: 'inline-flex',
       alignItems: 'center',
       justifyContent: 'center',
-      gap: 6,
-  }), [blurFilter, darkMode, effectiveUiScale, isOpaqueUtilityMode, utilityButtonBgColor, utilityButtonBorderColor, utilityButtonShadow]);
-  const utilityDropdownShellStyle = useMemo(() => ({
-      borderRadius: 14,
-      padding: 6,
-      background: darkMode ? 'linear-gradient(180deg, rgba(20,26,38,0.96) 0%, rgba(13,17,26,0.98) 100%)' : 'linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,248,252,0.98) 100%)',
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
-      boxShadow: darkMode ? '0 20px 48px rgba(0,0,0,0.32)' : '0 16px 36px rgba(15,23,42,0.12)',
-      backdropFilter: darkMode ? 'blur(16px)' : 'none',
+      gap: isSidebarCompact ? 4 : 6,
+      minWidth: 0,
       overflow: 'hidden',
-  }), [darkMode]);
+      textOverflow: 'ellipsis',
+      whiteSpace: 'nowrap',
+      fontSize: isSidebarCompact ? 13 : 14,
+  }), [blurFilter, darkMode, effectiveUiScale, isOpaqueUtilityMode, isSidebarCompact, utilityButtonBgColor, utilityButtonBorderColor, utilityButtonShadow]);
+  const overlayTheme = useMemo(() => buildOverlayWorkbenchTheme(darkMode), [darkMode]);
 
   const sidebarQuickActionBaseStyle = useMemo(() => ({
       height: Math.max(34, Math.round(36 * effectiveUiScale)),
@@ -493,6 +501,8 @@ function App() {
       backdropFilter: blurFilter,
       WebkitBackdropFilter: blurFilter,
       minWidth: 0,
+      overflow: 'hidden',
+      textOverflow: 'ellipsis',
       whiteSpace: 'nowrap',
     }), [blurFilter, darkMode, effectiveUiScale]);
   const sidebarQueryActionStyle = useMemo(() => ({
@@ -510,65 +520,58 @@ function App() {
       color: '#2a1f00',
     }), [sidebarQuickActionBaseStyle]);
 
-  const utilityMenuTheme = useMemo(() => ({
-      components: {
-          Menu: {
-              popupBg: 'transparent',
-              darkPopupBg: 'transparent',
-              itemBg: 'transparent',
-              darkItemBg: 'transparent',
-              subMenuItemBg: 'transparent',
-              itemColor: darkMode ? 'rgba(255,255,255,0.88)' : '#162033',
-              itemHoverColor: darkMode ? '#fff7d6' : '#0f172a',
-              itemHoverBg: darkMode ? 'rgba(255,214,102,0.10)' : 'rgba(24,144,255,0.08)',
-              itemSelectedColor: darkMode ? '#ffd666' : '#1677ff',
-              itemSelectedBg: darkMode ? 'rgba(255,214,102,0.14)' : 'rgba(24,144,255,0.12)',
-              itemBorderRadius: 10,
-              itemMarginBlock: 4,
-              itemMarginInline: 0,
-              itemPaddingInline: 12,
-              itemHeight: 40,
-              groupTitleColor: darkMode ? 'rgba(255,255,255,0.48)' : 'rgba(16,24,40,0.48)',
-          },
-      },
-  }), [darkMode]);
-  const renderUtilityDropdown = (menu: React.ReactNode) => (
-      <ConfigProvider theme={utilityMenuTheme}>
-          <div style={{ ...utilityDropdownShellStyle, minWidth: 220 }}>
-              {menu}
-          </div>
-      </ConfigProvider>
-  );
   const utilityModalShellStyle = useMemo(() => ({
-      background: darkMode ? 'linear-gradient(180deg, rgba(20,26,38,0.96) 0%, rgba(13,17,26,0.98) 100%)' : 'linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,248,252,0.98) 100%)',
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
-      boxShadow: darkMode ? '0 24px 56px rgba(0,0,0,0.32)' : '0 18px 42px rgba(15,23,42,0.12)',
-      backdropFilter: darkMode ? 'blur(18px)' : 'none',
-  }), [darkMode]);
+      background: overlayTheme.shellBg,
+      border: overlayTheme.shellBorder,
+      boxShadow: overlayTheme.shellShadow,
+      backdropFilter: overlayTheme.shellBackdropFilter,
+  }), [overlayTheme]);
   const utilityPanelStyle = useMemo(() => ({
       padding: 16,
       borderRadius: 14,
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
-      background: darkMode ? 'rgba(255,255,255,0.03)' : 'rgba(255,255,255,0.84)',
-  }), [darkMode]);
+      border: overlayTheme.sectionBorder,
+      background: overlayTheme.sectionBg,
+  }), [overlayTheme]);
   const utilityMutedTextStyle = useMemo(() => ({
-      color: darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)',
+      color: overlayTheme.mutedText,
       fontSize: 12,
       lineHeight: 1.6,
-  }), [darkMode]);
+  }), [overlayTheme]);
   const renderUtilityModalTitle = (icon: React.ReactNode, title: string, description: string) => (
       <div style={{ display: 'flex', alignItems: 'flex-start', gap: 12 }}>
-          <div style={{ width: 36, height: 36, borderRadius: 12, display: 'grid', placeItems: 'center', background: darkMode ? 'rgba(255,214,102,0.12)' : 'rgba(24,144,255,0.1)', color: darkMode ? '#ffd666' : '#1677ff', flexShrink: 0 }}>
+          <div style={{ width: 36, height: 36, borderRadius: 12, display: 'grid', placeItems: 'center', background: overlayTheme.iconBg, color: overlayTheme.iconColor, flexShrink: 0 }}>
               {icon}
           </div>
           <div style={{ minWidth: 0 }}>
-              <div style={{ fontSize: 16, fontWeight: 700, color: darkMode ? '#f5f7ff' : '#162033' }}>{title}</div>
-              <div style={{ marginTop: 4, color: darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)', fontSize: 12, lineHeight: 1.6 }}>{description}</div>
+              <div style={{ fontSize: 16, fontWeight: 700, color: overlayTheme.titleText }}>{title}</div>
+              <div style={{ marginTop: 4, color: overlayTheme.mutedText, fontSize: 12, lineHeight: 1.6 }}>{description}</div>
           </div>
       </div>
   );
+  const utilityActionCardStyle = useMemo(() => ({
+      width: '100%',
+      minHeight: 68,
+      borderRadius: 14,
+      border: overlayTheme.sectionBorder,
+      background: overlayTheme.sectionBg,
+      color: overlayTheme.titleText,
+      display: 'flex',
+      alignItems: 'center',
+      justifyContent: 'flex-start',
+      gap: 14,
+      paddingInline: 16,
+      boxShadow: 'none',
+      fontSize: 15,
+      fontWeight: 600,
+  }), [overlayTheme]);
+  const utilityActionHintStyle = useMemo(() => ({
+      fontSize: 12,
+      color: overlayTheme.mutedText,
+      fontWeight: 400,
+      marginTop: 2,
+  }), [overlayTheme]);
 
-  const sidebarHorizontalPadding = 10;
+  const sidebarHorizontalPadding = isSidebarCompact ? 8 : 10;
   
   const addTab = useStore(state => state.addTab);
   const activeContext = useStore(state => state.activeContext);
@@ -640,6 +643,8 @@ function App() {
 
   const isMacRuntime = runtimePlatform === 'darwin'
       || (runtimePlatform === '' && /mac/i.test(detectNavigatorPlatform()));
+  const isWindowsRuntime = runtimePlatform === 'windows'
+      || (runtimePlatform === '' && isWindowsPlatform());
 
   const formatBytes = (bytes?: number) => {
       if (!bytes || bytes <= 0) return '0 B';
@@ -906,18 +911,24 @@ function App() {
   }, []);
 
   const handleNewQuery = () => {
-      let connId = activeContext?.connectionId || '';
-      let db = activeContext?.dbName || '';
+      let connId = '';
+      let db = '';
 
-      // Priority: Active Tab Context > Sidebar Selection
+      // Priority: Active Tab Context (if connection still valid) > Sidebar Selection (activeContext)
       if (activeTabId) {
           const currentTab = tabs.find(t => t.id === activeTabId);
-          if (currentTab && currentTab.connectionId) {
+          if (currentTab && currentTab.connectionId && connections.some(c => c.id === currentTab.connectionId)) {
               connId = currentTab.connectionId;
               db = currentTab.dbName || '';
           }
       }
 
+      // Fallback: Sidebar selection context (only if connection still valid)
+      if (!connId && activeContext?.connectionId && connections.some(c => c.id === activeContext.connectionId)) {
+          connId = activeContext.connectionId;
+          db = activeContext.dbName || '';
+      }
+
       addTab({
           id: `query-${Date.now()}`,
           title: '新建查询',
@@ -948,7 +959,7 @@ function App() {
           } catch (e) {
               void message.error("解析 JSON 失败");
           }
-      } else if (res.message !== "Cancelled") {
+      } else if (res.message !== "已取消") {
           void message.error("导入失败: " + res.message);
       }
   };
@@ -961,45 +972,12 @@ function App() {
       const res = await (window as any).go.app.App.ExportData(connections, ['id','name','config','includeDatabases','includeRedisDatabases'], "connections", "json");
       if (res.success) {
           void message.success("导出成功");
-      } else if (res.message !== "Cancelled") {
+      } else if (res.message !== "已取消") {
           void message.error("导出失败: " + res.message);
       }
   };
 
-  const toolsMenu: MenuProps['items'] = [
-      {
-          key: 'import',
-          label: '导入连接配置',
-          icon: <UploadOutlined />,
-          onClick: handleImportConnections
-      },
-      {
-          key: 'export',
-          label: '导出连接配置',
-          icon: <DownloadOutlined />,
-          onClick: handleExportConnections
-      },
-      {
-          key: 'sync',
-          label: '数据同步',
-          icon: <UploadOutlined rotate={90} />,
-          onClick: () => setIsSyncModalOpen(true)
-      },
-      {
-          key: 'drivers',
-          label: '驱动管理',
-          icon: <SettingOutlined />,
-          onClick: () => setIsDriverModalOpen(true)
-      },
-      { type: 'divider' },
-      {
-          key: 'shortcut-settings',
-          label: '快捷键管理',
-          icon: <LinkOutlined />,
-          onClick: () => setIsShortcutModalOpen(true)
-      }
-  ];
-
+  const [isToolsModalOpen, setIsToolsModalOpen] = useState(false);
   const [isThemeModalOpen, setIsThemeModalOpen] = useState(false);
   const [themeModalSection, setThemeModalSection] = useState<'theme' | 'appearance'>('theme');
   const [isAppearanceModalOpen, setIsAppearanceModalOpen] = useState(false);
@@ -1075,16 +1053,27 @@ function App() {
       setIsDriverModalOpen(true);
   };
 
+  const handleTitleBarWindowToggle = async () => {
+      try {
+          if (await WindowIsFullscreen()) {
+              await WindowUnfullscreen();
+              return;
+          }
+          await WindowToggleMaximise();
+      } catch (_) {
+          // ignore
+      }
+  };
+
   const handleTitleBarDoubleClick = (e: React.MouseEvent<HTMLDivElement>) => {
       const target = e.target as HTMLElement | null;
       if (target?.closest('[data-no-titlebar-toggle="true"]')) {
           return;
       }
-      try { WindowToggleMaximise(); } catch(e) {}
+      void handleTitleBarWindowToggle();
   };
   
   // Sidebar Resizing
-  const [sidebarWidth, setSidebarWidth] = useState(330);
   const sidebarDragRef = React.useRef<{ startX: number, startWidth: number } | null>(null);
   const rafRef = React.useRef<number | null>(null);
   const ghostRef = React.useRef<HTMLDivElement>(null);
@@ -1447,7 +1436,7 @@ function App() {
                     type="text" 
                     icon={<BorderOutlined />} 
                     style={{ height: '100%', borderRadius: 0, width: titleBarButtonWidth }} 
-                    onClick={WindowToggleMaximise} 
+                    onClick={() => { void handleTitleBarWindowToggle(); }} 
                   />
                   <Button 
                     type="text" 
@@ -1471,17 +1460,15 @@ function App() {
           >
             <div style={{ height: '100%', display: 'flex', flexDirection: 'column', overflow: 'hidden' }}>
                 <div style={{ padding: `12px ${sidebarHorizontalPadding}px 8px`, borderBottom: 'none', display: 'flex', alignItems: 'center', flexShrink: 0 }}>
-                    <div style={{ display: 'grid', gridTemplateColumns: 'repeat(4, minmax(0, 1fr))', gap: 8, width: '100%' }}>
-                        <Dropdown menu={{ items: toolsMenu }} placement="bottomLeft" dropdownRender={renderUtilityDropdown}>
-                            <Button type="text" icon={<ToolOutlined />} title="工具" style={utilityButtonStyle}>工具</Button>
-                        </Dropdown>
-                        <Button type="text" icon={<GlobalOutlined />} title="代理" style={utilityButtonStyle} onClick={() => setIsProxyModalOpen(true)}>代理</Button>
-                        <Button type="text" icon={<SkinOutlined />} title="主题" style={utilityButtonStyle} onClick={() => setIsThemeModalOpen(true)}>主题</Button>
-                        <Button type="text" icon={<InfoCircleOutlined />} title="关于" style={utilityButtonStyle} onClick={() => setIsAboutOpen(true)}>关于</Button>
+                    <div style={{ display: 'grid', gridTemplateColumns: isSidebarNarrow ? 'repeat(2, minmax(0, 1fr))' : 'repeat(4, minmax(0, 1fr))', gap: 8, width: '100%' }}>
+                        <Button type="text" icon={<ToolOutlined />} title="工具" style={utilityButtonStyle} onClick={() => setIsToolsModalOpen(true)}>{isSidebarUltraCompact ? null : '工具'}</Button>
+                        <Button type="text" icon={<GlobalOutlined />} title="代理" style={utilityButtonStyle} onClick={() => setIsProxyModalOpen(true)}>{isSidebarUltraCompact ? null : '代理'}</Button>
+                        <Button type="text" icon={<SkinOutlined />} title="主题" style={utilityButtonStyle} onClick={() => setIsThemeModalOpen(true)}>{isSidebarUltraCompact ? null : '主题'}</Button>
+                        <Button type="text" icon={<InfoCircleOutlined />} title="关于" style={utilityButtonStyle} onClick={() => setIsAboutOpen(true)}>{isSidebarUltraCompact ? null : '关于'}</Button>
                     </div>
                 </div>
                 <div style={{ padding: `0 ${sidebarHorizontalPadding}px 10px`, borderBottom: 'none', display: 'flex', alignItems: 'center', flexShrink: 0 }}>
-                    <div style={{ display: 'grid', gridTemplateColumns: 'minmax(0, 1fr) minmax(0, 1fr)', gap: 8, width: '100%' }}>
+                    <div style={{ display: 'grid', gridTemplateColumns: isSidebarCompact ? 'minmax(0, 1fr)' : 'minmax(0, 1fr) minmax(0, 1fr)', gap: 8, width: '100%' }}>
                         <Button icon={<ConsoleSqlOutlined />} onClick={handleNewQuery} title="新建查询" style={sidebarQueryActionStyle}>
                             新建查询
                         </Button>
@@ -1568,6 +1555,79 @@ function App() {
             initialValues={editingConnection}
             onOpenDriverManager={handleOpenDriverManagerFromConnection}
           />
+          <Modal
+            title={renderUtilityModalTitle(<ToolOutlined />, '工具中心', '集中处理连接配置、同步、驱动和快捷键相关操作。')}
+            open={isToolsModalOpen}
+            onCancel={() => setIsToolsModalOpen(false)}
+            footer={null}
+            width={560}
+            styles={{ content: utilityModalShellStyle, header: { background: 'transparent', borderBottom: 'none', paddingBottom: 8 }, body: { paddingTop: 8 }, footer: { background: 'transparent', borderTop: 'none', paddingTop: 10 } }}
+          >
+            <div style={{ display: 'grid', gap: 12, padding: '12px 0' }}>
+              {[
+                {
+                  key: 'import',
+                  icon: <UploadOutlined />,
+                  title: '导入连接配置',
+                  description: '从本地文件恢复连接列表。',
+                  onClick: () => {
+                    setIsToolsModalOpen(false);
+                    void handleImportConnections();
+                  },
+                },
+                {
+                  key: 'export',
+                  icon: <DownloadOutlined />,
+                  title: '导出连接配置',
+                  description: '导出当前连接与可见配置字段。',
+                  onClick: () => {
+                    setIsToolsModalOpen(false);
+                    void handleExportConnections();
+                  },
+                },
+                {
+                  key: 'sync',
+                  icon: <UploadOutlined rotate={90} />,
+                  title: '数据同步',
+                  description: '进入跨源同步工作流。',
+                  onClick: () => {
+                    setIsToolsModalOpen(false);
+                    setIsSyncModalOpen(true);
+                  },
+                },
+                {
+                  key: 'drivers',
+                  icon: <SettingOutlined />,
+                  title: '驱动管理',
+                  description: '安装、更新或移除数据库驱动。',
+                  onClick: () => {
+                    setIsToolsModalOpen(false);
+                    setIsDriverModalOpen(true);
+                  },
+                },
+                {
+                  key: 'shortcut-settings',
+                  icon: <LinkOutlined />,
+                  title: '快捷键管理',
+                  description: '查看并调整全局快捷键绑定。',
+                  onClick: () => {
+                    setIsToolsModalOpen(false);
+                    setIsShortcutModalOpen(true);
+                  },
+                },
+              ].map((item) => (
+                <Button key={item.key} type="text" style={utilityActionCardStyle} onClick={item.onClick}>
+                  <span style={{ width: 36, height: 36, borderRadius: 12, display: 'grid', placeItems: 'center', background: overlayTheme.iconBg, color: overlayTheme.iconColor, flexShrink: 0 }}>
+                    {item.icon}
+                  </span>
+                  <span style={{ display: 'flex', flexDirection: 'column', alignItems: 'flex-start', minWidth: 0 }}>
+                    <span>{item.title}</span>
+                    <span style={utilityActionHintStyle}>{item.description}</span>
+                  </span>
+                </Button>
+              ))}
+            </div>
+          </Modal>
           <DataSyncModal
             open={isSyncModalOpen}
             onClose={() => setIsSyncModalOpen(false)}
@@ -1581,7 +1641,7 @@ function App() {
             title={renderUtilityModalTitle(<InfoCircleOutlined />, '关于 GoNavi', '查看版本信息、仓库地址、更新状态与下载入口。')}
             open={isAboutOpen}
             onCancel={() => setIsAboutOpen(false)}
-            styles={{ content: utilityModalShellStyle, header: { background: 'transparent', borderBottom: 'none', paddingBottom: 8 }, body: { paddingTop: 8 }, footer: { background: 'transparent', borderTop: 'none', paddingTop: 10 } }}
+            styles={{ content: utilityModalShellStyle, header: { background: 'transparent', borderBottom: 'none', paddingBottom: 8 }, body: { paddingTop: 8 }, footer: { background: 'transparent', borderTop: 'none', paddingTop: 10, display: 'flex', flexWrap: 'wrap', gap: 10, justifyContent: 'flex-end' } }}
             footer={[
                 canShowProgressEntry ? (
                     <Button key="progress" icon={<DownloadOutlined />} onClick={showUpdateDownloadProgress}>下载进度</Button>
@@ -1836,11 +1896,11 @@ function App() {
                               <div style={utilityPanelStyle}>
                                   <div style={{ marginBottom: 8, fontWeight: 500 }}>启动窗口</div>
                                   <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', gap: 12 }}>
-                                      <span>启动时全屏</span>
+                                      <span>{isWindowsRuntime ? '启动时全屏（Windows 按最大化处理）' : '启动时全屏'}</span>
                                       <Switch checked={startupFullscreen} onChange={(checked) => setStartupFullscreen(checked)} />
                                   </div>
                                   <div style={{ fontSize: 12, color: darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)', marginTop: 4 }}>
-                                      * 修改后下次启动生效
+                                      {isWindowsRuntime ? '* Windows 下该选项按“启动时最大化”处理，修改后下次启动生效' : '* 修改后下次启动生效'}
                                   </div>
                               </div>
                               <div style={{ display: 'flex', justifyContent: 'flex-end', alignItems: 'center', gap: 12, paddingTop: 8, paddingBottom: 12 }}>

frontend/src/components/ConnectionModal.tsx

@@ -2,6 +2,7 @@ import React, { useState, useEffect, useRef, useMemo } from 'react';
 import { Modal, Form, Input, InputNumber, Button, message, Checkbox, Divider, Select, Alert, Card, Row, Col, Typography, Collapse, Space, Table, Tag } from 'antd';
 import { DatabaseOutlined, ConsoleSqlOutlined, FileTextOutlined, CloudServerOutlined, AppstoreAddOutlined, CloudOutlined, CheckCircleFilled, CloseCircleFilled, LinkOutlined, EditOutlined, AppstoreOutlined } from '@ant-design/icons';
 import { useStore } from '../store';
+import { buildOverlayWorkbenchTheme } from '../utils/overlayWorkbenchTheme';
 import { normalizeOpacityForPlatform, resolveAppearanceValues } from '../utils/appearance';
 import { DBGetDatabases, GetDriverStatusList, MongoDiscoverMembers, TestConnection, RedisConnect, SelectDatabaseFile, SelectSSHKeyFile } from '../../wailsjs/go/app/App';
 import { ConnectionConfig, MongoMemberInfo, SavedConnection } from '../types';
@@ -157,6 +158,7 @@ const ConnectionModal: React.FC<{
   const step1SidebarDividerColor = darkMode ? STEP1_SIDEBAR_DIVIDER_DARK : STEP1_SIDEBAR_DIVIDER_LIGHT;
   const step1SidebarActiveBg = darkMode ? 'rgba(246, 196, 83, 0.20)' : '#e6f4ff';
   const step1SidebarActiveColor = darkMode ? '#ffd666' : '#1677ff';
+  const overlayTheme = useMemo(() => buildOverlayWorkbenchTheme(darkMode), [darkMode]);
 
   const tunnelSectionStyle: React.CSSProperties = {
       padding: '12px',
@@ -168,35 +170,33 @@ const ConnectionModal: React.FC<{
 
 
   const modalShellStyle = useMemo(() => ({
-      background: darkMode
-          ? 'linear-gradient(180deg, rgba(20,26,38,0.96) 0%, rgba(13,17,26,0.98) 100%)'
-          : 'linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,248,252,0.98) 100%)',
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
-      boxShadow: darkMode ? '0 24px 56px rgba(0,0,0,0.38)' : '0 18px 42px rgba(15,23,42,0.12)',
-      backdropFilter: darkMode ? 'blur(18px)' : 'none',
-  }), [darkMode]);
+      background: overlayTheme.shellBg,
+      border: overlayTheme.shellBorder,
+      boxShadow: overlayTheme.shellShadow,
+      backdropFilter: overlayTheme.shellBackdropFilter,
+  }), [overlayTheme]);
 
   const modalInnerSectionStyle = useMemo(() => ({
       padding: 14,
       borderRadius: 14,
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
-      background: darkMode ? 'rgba(255,255,255,0.03)' : 'rgba(255,255,255,0.84)',
-  }), [darkMode]);
+      border: overlayTheme.sectionBorder,
+      background: overlayTheme.sectionBg,
+  }), [overlayTheme]);
 
   const modalMutedTextStyle = useMemo(() => ({
-      color: darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)',
+      color: overlayTheme.mutedText,
       fontSize: 12,
       lineHeight: 1.6,
-  }), [darkMode]);
+  }), [overlayTheme]);
 
   const renderConnectionModalTitle = (icon: React.ReactNode, title: string, description: string) => (
       <div style={{ display: 'flex', alignItems: 'flex-start', gap: 12 }}>
-          <div style={{ width: 36, height: 36, borderRadius: 12, display: 'grid', placeItems: 'center', background: darkMode ? 'rgba(255,214,102,0.12)' : 'rgba(24,144,255,0.1)', color: darkMode ? '#ffd666' : '#1677ff', flexShrink: 0 }}>
+          <div style={{ width: 36, height: 36, borderRadius: 12, display: 'grid', placeItems: 'center', background: overlayTheme.iconBg, color: overlayTheme.iconColor, flexShrink: 0 }}>
               {icon}
           </div>
           <div style={{ minWidth: 0 }}>
-              <div style={{ fontSize: 16, fontWeight: 700, color: darkMode ? '#f5f7ff' : '#162033' }}>{title}</div>
-              <div style={{ marginTop: 4, color: darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)', fontSize: 12, lineHeight: 1.6 }}>{description}</div>
+              <div style={{ fontSize: 16, fontWeight: 700, color: overlayTheme.titleText }}>{title}</div>
+              <div style={{ marginTop: 4, color: overlayTheme.mutedText, fontSize: 12, lineHeight: 1.6 }}>{description}</div>
           </div>
       </div>
   );
@@ -1013,7 +1013,7 @@ const ConnectionModal: React.FC<{
               if (selectedPath) {
                   form.setFieldValue('sshKeyPath', selectedPath);
               }
-          } else if (res?.message !== 'Cancelled') {
+          } else if (res?.message !== '已取消') {
               message.error(`选择私钥文件失败: ${res?.message || '未知错误'}`);
           }
       } catch (e: any) {
@@ -1037,7 +1037,7 @@ const ConnectionModal: React.FC<{
               if (selectedPath) {
                   form.setFieldValue('host', normalizeFileDbPath(selectedPath));
               }
-          } else if (res?.message !== 'Cancelled') {
+          } else if (res?.message !== '已取消') {
               message.error(`选择数据库文件失败: ${res?.message || '未知错误'}`);
           }
       } catch (e: any) {

frontend/src/components/DataViewer.tsx

@@ -247,6 +247,20 @@ const DataViewer: React.FC<{ tab: TabData }> = ({ tab }) => {
   const currentConnCaps = getDataSourceCapabilities(currentConnConfig);
   const currentConnType = currentConnCaps.type;
   const forceReadOnly = currentConnCaps.forceReadOnlyQueryResult;
+  const persistViewerSnapshot = useCallback((tabId: string, overrides?: Partial<ViewerFilterSnapshot>) => {
+    const normalizedTabId = String(tabId || '').trim();
+    if (!normalizedTabId) return;
+    viewerFilterSnapshotsByTab.set(normalizedTabId, {
+      showFilter,
+      conditions: normalizeViewerFilterConditions(filterConditions),
+      currentPage: pagination.current,
+      pageSize: pagination.pageSize,
+      sortInfo,
+      scrollTop: scrollSnapshotRef.current.top,
+      scrollLeft: scrollSnapshotRef.current.left,
+      ...overrides,
+    });
+  }, [showFilter, filterConditions, pagination.current, pagination.pageSize, sortInfo]);
 
   useEffect(() => {
     const snapshot = getViewerFilterSnapshot(tab.id);
@@ -258,16 +272,14 @@ const DataViewer: React.FC<{ tab: TabData }> = ({ tab }) => {
   }, [tab.id]);
 
   useEffect(() => {
-    viewerFilterSnapshotsByTab.set(tab.id, {
-      showFilter,
-      conditions: normalizeViewerFilterConditions(filterConditions),
-      currentPage: pagination.current,
-      pageSize: pagination.pageSize,
-      sortInfo,
-      scrollTop: scrollSnapshotRef.current.top,
-      scrollLeft: scrollSnapshotRef.current.left,
-    });
-  }, [tab.id, showFilter, filterConditions, pagination.current, pagination.pageSize, sortInfo]);
+    persistViewerSnapshot(tab.id);
+  }, [tab.id, persistViewerSnapshot]);
+
+  useEffect(() => {
+    return () => {
+      persistViewerSnapshot(tab.id);
+    };
+  }, [tab.id, persistViewerSnapshot]);
 
   useEffect(() => {
     const snapshot = getViewerFilterSnapshot(tab.id);
@@ -298,13 +310,11 @@ const DataViewer: React.FC<{ tab: TabData }> = ({ tab }) => {
 
   const handleTableScrollSnapshotChange = useCallback((snapshot: ViewerScrollSnapshot) => {
     scrollSnapshotRef.current = snapshot;
-    const cached = getViewerFilterSnapshot(tab.id);
-    viewerFilterSnapshotsByTab.set(tab.id, {
-      ...cached,
+    persistViewerSnapshot(tab.id, {
       scrollTop: snapshot.top,
       scrollLeft: snapshot.left,
     });
-  }, [tab.id]);
+  }, [tab.id, persistViewerSnapshot]);
 
   const handleDuckDBManualCount = useCallback(async () => {
     if (latestDbTypeRef.current !== 'duckdb') {

frontend/src/components/DriverManagerModal.tsx

@@ -847,7 +847,7 @@ const DriverManagerModal: React.FC<{ open: boolean; onClose: () => void; onOpenG
   const installDriverFromLocalFile = useCallback(async (row: DriverStatusRow) => {
     const fileRes = await SelectDriverPackageFile(downloadDir);
     if (!fileRes?.success) {
-      if (String(fileRes?.message || '') !== 'Cancelled') {
+      if (String(fileRes?.message || '') !== '已取消') {
         message.error(fileRes?.message || '选择本地驱动包文件失败');
       }
       return;
@@ -863,7 +863,7 @@ const DriverManagerModal: React.FC<{ open: boolean; onClose: () => void; onOpenG
   const installDriversFromDirectory = useCallback(async () => {
     const directoryRes = await SelectDriverPackageDirectory(downloadDir);
     if (!directoryRes?.success) {
-      if (String(directoryRes?.message || '') !== 'Cancelled') {
+      if (String(directoryRes?.message || '') !== '已取消') {
         message.error(directoryRes?.message || '选择本地驱动包目录失败');
       }
       return;

frontend/src/components/FindInDatabaseModal.tsx

@@ -0,0 +1,462 @@
+import React, { useState, useRef, useCallback, useMemo } from 'react';
+import { Modal, Input, Button, Table, Progress, Space, Tag, message, Tooltip, Select, Empty } from 'antd';
+import { SearchOutlined, StopOutlined, EyeOutlined, DatabaseOutlined } from '@ant-design/icons';
+import { DBQuery, DBGetTables, DBGetAllColumns } from '../../wailsjs/go/app/App';
+import { quoteIdentPart, escapeLiteral } from '../utils/sql';
+import { useStore } from '../store';
+import { buildOverlayWorkbenchTheme } from '../utils/overlayWorkbenchTheme';
+
+interface FindInDatabaseModalProps {
+    open: boolean;
+    onClose: () => void;
+    connectionId: string;
+    dbName: string;
+}
+
+interface SearchResultItem {
+    tableName: string;
+    matchedColumns: string[];
+    matchCount: number;
+    rows: Record<string, any>[];
+    columns: string[];
+}
+
+/** 判断数据库列类型是否为文本类型（只搜索文本字段） */
+const isTextColumnType = (colType: string): boolean => {
+    const t = (colType || '').toLowerCase().trim();
+    // 显式排除非文本类型
+    if (/^(int|bigint|smallint|tinyint|mediumint|float|double|decimal|numeric|real|money|smallmoney|bit|boolean|bool)/.test(t)) return false;
+    if (/^(date|time|datetime|timestamp|year|interval)/.test(t)) return false;
+    if (/^(blob|binary|varbinary|image|bytea|raw|long raw)/.test(t)) return false;
+    if (/^(geometry|geography|point|line|polygon|spatial)/.test(t)) return false;
+    if (/^(json|jsonb|xml|uuid|uniqueidentifier)/.test(t)) return false;
+    if (/^(serial|bigserial|smallserial|autoincrement|identity)/.test(t)) return false;
+    // 文本类型正匹配
+    if (/^(varchar|char|nvarchar|nchar|text|ntext|tinytext|mediumtext|longtext|string|clob|nclob|character)/.test(t)) return true;
+    if (t === 'sysname' || t === 'sql_variant') return true;
+    // 未知类型默认尝试搜索
+    return true;
+};
+
+/** 根据 dbType 构建限制返回行数的 SELECT SQL */
+const buildLimitedSelectSQL = (dbType: string, baseSql: string, limit: number): string => {
+    const normalizedType = (dbType || '').toLowerCase();
+    switch (normalizedType) {
+        case 'sqlserver':
+        case 'mssql':
+            return baseSql.replace(/^SELECT\b/i, `SELECT TOP ${limit}`);
+        case 'oracle':
+        case 'dameng':
+            return `${baseSql} FETCH FIRST ${limit} ROWS ONLY`;
+        default:
+            return `${baseSql} LIMIT ${limit}`;
+    }
+};
+
+const MAX_MATCH_ROWS_PER_TABLE = 100;
+
+const FindInDatabaseModal: React.FC<FindInDatabaseModalProps> = ({ open, onClose, connectionId, dbName }) => {
+    const [keyword, setKeyword] = useState('');
+    const [matchMode, setMatchMode] = useState<'contains' | 'exact'>('contains');
+    const [searching, setSearching] = useState(false);
+    const [results, setResults] = useState<SearchResultItem[]>([]);
+    const [progress, setProgress] = useState({ current: 0, total: 0, tableName: '' });
+    const [expandedTable, setExpandedTable] = useState<string | null>(null);
+    const cancelledRef = useRef(false);
+
+    const connections = useStore(state => state.connections);
+    const theme = useStore(state => state.theme);
+
+    const conn = useMemo(() => connections.find(c => c.id === connectionId), [connections, connectionId]);
+    const dbType = useMemo(() => (conn?.config?.type || 'mysql').toLowerCase(), [conn]);
+
+    const wt = useMemo(() => {
+        const isDark = theme === 'dark';
+        return buildOverlayWorkbenchTheme(isDark);
+    }, [theme]);
+
+    const buildConfig = useCallback(() => {
+        if (!conn) return null;
+        return {
+            ...conn.config,
+            port: Number(conn.config.port),
+            password: conn.config.password || "",
+            database: conn.config.database || "",
+            useSSH: conn.config.useSSH || false,
+            ssh: conn.config.ssh || { host: "", port: 22, user: "", password: "", keyPath: "" }
+        };
+    }, [conn]);
+
+    const handleSearch = useCallback(async () => {
+        const searchKeyword = keyword.trim();
+        if (!searchKeyword) {
+            message.warning('请输入搜索关键字');
+            return;
+        }
+        const config = buildConfig();
+        if (!config) {
+            message.error('未找到连接配置');
+            return;
+        }
+
+        setSearching(true);
+        setResults([]);
+        setExpandedTable(null);
+        cancelledRef.current = false;
+
+        try {
+            // 1. 获取所有表
+            const tablesRes = await DBGetTables(config as any, dbName);
+            if (!tablesRes.success) {
+                message.error('获取表列表失败: ' + tablesRes.message);
+                setSearching(false);
+                return;
+            }
+            const tableRows: any[] = Array.isArray(tablesRes.data) ? tablesRes.data : [];
+            const tableNames = tableRows.map((row: any) => Object.values(row)[0] as string).filter(Boolean);
+
+            if (tableNames.length === 0) {
+                message.info('当前数据库没有表');
+                setSearching(false);
+                return;
+            }
+
+            setProgress({ current: 0, total: tableNames.length, tableName: '' });
+
+            // 2. 获取所有列信息（返回 any[]，含 tableName/name/type 字段）
+            const allColsRes = await DBGetAllColumns(config as any, dbName);
+            const allColumns: any[] = (allColsRes?.success && Array.isArray(allColsRes.data)) ? allColsRes.data : [];
+
+            // 按表名分组
+            const columnsByTable: Record<string, Array<{ name: string; type: string }>> = {};
+            allColumns.forEach((col: any) => {
+                const tbl = col.tableName || '';
+                if (!columnsByTable[tbl]) columnsByTable[tbl] = [];
+                columnsByTable[tbl].push({ name: col.name, type: col.type || '' });
+            });
+
+            const searchResults: SearchResultItem[] = [];
+            const escapedKeyword = escapeLiteral(searchKeyword);
+
+            // 3. 逐表搜索
+            for (let i = 0; i < tableNames.length; i++) {
+                if (cancelledRef.current) break;
+
+                const tableName = tableNames[i];
+                setProgress({ current: i + 1, total: tableNames.length, tableName });
+
+                // 获取该表的文本列
+                const tableCols = columnsByTable[tableName] || [];
+                const textCols = tableCols.filter(c => isTextColumnType(c.type));
+
+                if (textCols.length === 0) continue;
+
+                // 构建 WHERE 子句
+                const castType = (dbType === 'sqlserver' || dbType === 'mssql') ? 'NVARCHAR(MAX)' : 'CHAR';
+                const whereConditions = textCols.map(c => {
+                    const quotedCol = quoteIdentPart(dbType, c.name);
+                    if (matchMode === 'exact') {
+                        return `CAST(${quotedCol} AS ${castType}) = '${escapedKeyword}'`;
+                    }
+                    return `CAST(${quotedCol} AS ${castType}) LIKE '%${escapedKeyword}%'`;
+                });
+
+                const quotedTable = quoteIdentPart(dbType, tableName);
+                const baseSql = `SELECT * FROM ${quotedTable} WHERE ${whereConditions.join(' OR ')}`;
+                const sql = buildLimitedSelectSQL(dbType, baseSql, MAX_MATCH_ROWS_PER_TABLE);
+
+                try {
+                    const res = await DBQuery(config as any, dbName, sql);
+                    if (res.success && Array.isArray(res.data) && res.data.length > 0) {
+                        // 检查哪些列实际匹配了
+                        const matchedCols = new Set<string>();
+                        const lowerKeyword = searchKeyword.toLowerCase();
+                        res.data.forEach((row: any) => {
+                            textCols.forEach(c => {
+                                const val = row[c.name];
+                                if (val != null) {
+                                    const strVal = String(val).toLowerCase();
+                                    if (matchMode === 'exact' ? strVal === lowerKeyword : strVal.includes(lowerKeyword)) {
+                                        matchedCols.add(c.name);
+                                    }
+                                }
+                            });
+                        });
+
+                        if (matchedCols.size > 0) {
+                            const columns = Object.keys(res.data[0]);
+                            searchResults.push({
+                                tableName,
+                                matchedColumns: Array.from(matchedCols),
+                                matchCount: res.data.length,
+                                rows: res.data,
+                                columns,
+                            });
+                            setResults([...searchResults]);
+                        }
+                    }
+                } catch {
+                    // 单表查询失败不中断整体搜索
+                }
+            }
+
+            if (!cancelledRef.current) {
+                setResults([...searchResults]);
+                if (searchResults.length === 0) {
+                    message.info('未找到匹配的数据');
+                }
+            }
+        } catch (e: any) {
+            message.error('搜索出错: ' + (e?.message || String(e)));
+        } finally {
+            setSearching(false);
+        }
+    }, [keyword, matchMode, dbName, dbType, buildConfig]);
+
+    const handleCancel = useCallback(() => {
+        cancelledRef.current = true;
+    }, []);
+
+    const handleClose = useCallback(() => {
+        cancelledRef.current = true;
+        setResults([]);
+        setExpandedTable(null);
+        setProgress({ current: 0, total: 0, tableName: '' });
+        onClose();
+    }, [onClose]);
+
+    // 汇总表的列定义
+    const summaryColumns = useMemo(() => [
+        {
+            title: '表名',
+            dataIndex: 'tableName',
+            key: 'tableName',
+            width: 220,
+            render: (text: string) => (
+                <span style={{ fontWeight: 500, color: wt.titleText }}>
+                    <DatabaseOutlined style={{ marginRight: 6, color: wt.iconColor }} />
+                    {text}
+                </span>
+            ),
+        },
+        {
+            title: '匹配列',
+            dataIndex: 'matchedColumns',
+            key: 'matchedColumns',
+            render: (cols: string[]) => (
+                <Space size={4} wrap>
+                    {cols.map(col => (
+                        <Tag key={col} color="blue" style={{ margin: 0, fontSize: 12 }}>{col}</Tag>
+                    ))}
+                </Space>
+            ),
+        },
+        {
+            title: '命中行数',
+            dataIndex: 'matchCount',
+            key: 'matchCount',
+            width: 100,
+            align: 'center' as const,
+            render: (count: number) => (
+                <Tag color={count >= MAX_MATCH_ROWS_PER_TABLE ? 'orange' : 'green'}>
+                    {count >= MAX_MATCH_ROWS_PER_TABLE ? `≥${count}` : count}
+                </Tag>
+            ),
+        },
+        {
+            title: '操作',
+            key: 'action',
+            width: 80,
+            align: 'center' as const,
+            render: (_: any, record: SearchResultItem) => (
+                <Tooltip title={expandedTable === record.tableName ? '收起详情' : '查看详情'}>
+                    <Button
+                        type="text"
+                        size="small"
+                        icon={<EyeOutlined />}
+                        onClick={(e) => { e.stopPropagation(); setExpandedTable(prev => prev === record.tableName ? null : record.tableName); }}
+                        style={{ color: wt.iconColor }}
+                    />
+                </Tooltip>
+            ),
+        },
+    ], [wt, expandedTable]);
+
+    // 展开的详情行 - 动态列
+    const expandedResult = useMemo(() => {
+        if (!expandedTable) return null;
+        return results.find(r => r.tableName === expandedTable);
+    }, [expandedTable, results]);
+
+    const detailColumns = useMemo(() => {
+        if (!expandedResult) return [];
+        const lowerKeyword = keyword.trim().toLowerCase();
+        return expandedResult.columns.map(col => ({
+            title: col,
+            dataIndex: col,
+            key: col,
+            width: 180,
+            ellipsis: true,
+            render: (value: any) => {
+                const strVal = value != null ? String(value) : '';
+                const isMatch = expandedResult.matchedColumns.includes(col) &&
+                    strVal.toLowerCase().includes(lowerKeyword);
+                return (
+                    <Tooltip title={strVal} placement="topLeft">
+                        <span style={isMatch ? { background: 'rgba(255, 193, 7, 0.3)', padding: '1px 3px', borderRadius: 3 } : undefined}>
+                            {strVal || <span style={{ color: wt.mutedText }}>NULL</span>}
+                        </span>
+                    </Tooltip>
+                );
+            },
+        }));
+    }, [expandedResult, keyword, wt]);
+
+    const percent = progress.total > 0 ? Math.round((progress.current / progress.total) * 100) : 0;
+
+    return (
+        <Modal
+            title={
+                <span style={{ color: wt.titleText, fontWeight: 600 }}>
+                    <SearchOutlined style={{ marginRight: 8, color: wt.iconColor }} />
+                    在数据库中搜索 — {dbName}
+                </span>
+            }
+            open={open}
+            onCancel={handleClose}
+            footer={null}
+            width={960}
+            styles={{
+                content: {
+                    background: wt.shellBg,
+                    borderRadius: 16,
+                    border: wt.shellBorder,
+                    boxShadow: wt.shellShadow,
+                    backdropFilter: wt.shellBackdropFilter,
+                    WebkitBackdropFilter: wt.shellBackdropFilter,
+                },
+                header: { background: 'transparent', borderBottom: 'none', paddingBottom: 8 },
+                body: { paddingTop: 8 },
+            }}
+            destroyOnClose
+        >
+            <div style={{ display: 'flex', flexDirection: 'column', gap: 16 }}>
+                {/* 搜索栏 */}
+                <div style={{ display: 'flex', gap: 8, alignItems: 'center' }}>
+                    <Input
+                        placeholder="输入要搜索的字符串..."
+                        value={keyword}
+                        onChange={e => setKeyword(e.target.value)}
+                        onPressEnter={!searching ? handleSearch : undefined}
+                        style={{ flex: 1 }}
+                        disabled={searching}
+                        autoFocus
+                    />
+                    <Select
+                        value={matchMode}
+                        onChange={v => setMatchMode(v)}
+                        disabled={searching}
+                        style={{ width: 110 }}
+                        options={[
+                            { label: '包含', value: 'contains' },
+                            { label: '精确匹配', value: 'exact' },
+                        ]}
+                    />
+                    {searching ? (
+                        <Button icon={<StopOutlined />} danger onClick={handleCancel}>
+                            取消
+                        </Button>
+                    ) : (
+                        <Button type="primary" icon={<SearchOutlined />} onClick={handleSearch} disabled={!keyword.trim()}>
+                            搜索
+                        </Button>
+                    )}
+                </div>
+
+                {/* 进度条 */}
+                {searching && (
+                    <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                        <Progress
+                            percent={percent}
+                            size="small"
+                            status="active"
+                            strokeColor={wt.iconColor}
+                        />
+                        <span style={{ fontSize: 12, color: wt.mutedText }}>
+                            正在搜索 {progress.tableName}... ({progress.current}/{progress.total})
+                        </span>
+                    </div>
+                )}
+
+                {/* 结果汇总表 */}
+                {results.length > 0 && (
+                    <div style={{ display: 'flex', flexDirection: 'column', gap: 8 }}>
+                        <div style={{ fontSize: 13, color: wt.mutedText, fontWeight: 500 }}>
+                            找到 {results.length} 个表包含匹配数据
+                            {searching && '（搜索进行中...）'}
+                        </div>
+                        <Table
+                            dataSource={results}
+                            columns={summaryColumns}
+                            rowKey="tableName"
+                            size="small"
+                            pagination={false}
+                            style={{ borderRadius: 8, overflow: 'hidden' }}
+                            scroll={{ y: expandedTable ? 200 : 400 }}
+                            onRow={(record) => ({
+                                style: {
+                                    cursor: 'pointer',
+                                    background: expandedTable === record.tableName ? wt.hoverBg : undefined,
+                                },
+                                onClick: () => setExpandedTable(prev => prev === record.tableName ? null : record.tableName),
+                            })}
+                        />
+                    </div>
+                )}
+
+                {/* 详情展开 */}
+                {expandedResult && (
+                    <div style={{
+                        border: wt.sectionBorder,
+                        borderRadius: 8,
+                        background: wt.sectionBg,
+                        overflow: 'hidden',
+                    }}>
+                        <div style={{
+                            padding: '8px 12px',
+                            borderBottom: wt.sectionBorder,
+                            fontSize: 13,
+                            fontWeight: 500,
+                            color: wt.titleText,
+                            display: 'flex',
+                            alignItems: 'center',
+                            justifyContent: 'space-between',
+                        }}>
+                            <span>
+                                <DatabaseOutlined style={{ marginRight: 6 }} />
+                                {expandedResult.tableName} — 匹配行详情
+                            </span>
+                            <Tag color="blue">{expandedResult.rows.length} 行</Tag>
+                        </div>
+                        <Table
+                            dataSource={expandedResult.rows.map((row, i) => ({ ...row, __rowIdx: i }))}
+                            columns={detailColumns}
+                            rowKey="__rowIdx"
+                            size="small"
+                            pagination={{ pageSize: 20, size: 'small', showSizeChanger: false }}
+                            scroll={{ x: Math.max(800, expandedResult.columns.length * 180) }}
+                            style={{ fontSize: 12 }}
+                        />
+                    </div>
+                )}
+
+                {/* 无结果且搜索完成 */}
+                {!searching && results.length === 0 && progress.total > 0 && (
+                    <Empty description="未找到匹配的数据" style={{ margin: '24px 0' }} />
+                )}
+            </div>
+        </Modal>
+    );
+};
+
+export default FindInDatabaseModal;

frontend/src/components/QueryEditor.tsx

@@ -6,12 +6,170 @@ import { format } from 'sql-formatter';
 import { v4 as uuidv4 } from 'uuid';
 import { TabData, ColumnDefinition } from '../types';
 import { useStore } from '../store';
-import { DBQuery, DBQueryWithCancel, DBGetTables, DBGetAllColumns, DBGetDatabases, DBGetColumns, CancelQuery, GenerateQueryID } from '../../wailsjs/go/app/App';
+import { DBQueryWithCancel, DBQueryMulti, DBGetTables, DBGetAllColumns, DBGetDatabases, DBGetColumns, CancelQuery, GenerateQueryID } from '../../wailsjs/go/app/App';
 import DataGrid, { GONAVI_ROW_KEY } from './DataGrid';
 import { getDataSourceCapabilities } from '../utils/dataSourceCapabilities';
 import { convertMongoShellToJsonCommand } from '../utils/mongodb';
 import { getShortcutDisplay, isEditableElement, isShortcutMatch } from '../utils/shortcuts';
 
+const SQL_KEYWORDS = [
+    'SELECT', 'FROM', 'WHERE', 'LIMIT', 'INSERT', 'UPDATE', 'DELETE', 'JOIN', 'LEFT', 'RIGHT',
+    'INNER', 'OUTER', 'ON', 'GROUP BY', 'ORDER BY', 'AS', 'AND', 'OR', 'NOT', 'NULL', 'IS',
+    'IN', 'VALUES', 'SET', 'CREATE', 'TABLE', 'DROP', 'ALTER', 'ADD', 'MODIFY', 'CHANGE',
+    'COLUMN', 'KEY', 'PRIMARY', 'FOREIGN', 'REFERENCES', 'CONSTRAINT', 'DEFAULT', 'AUTO_INCREMENT',
+    'COMMENT', 'SHOW', 'DESCRIBE', 'EXPLAIN',
+];
+
+// SQL 常用内置函数（通用，适用于 MySQL/PostgreSQL/Oracle/SQL Server 等主流数据源）
+const SQL_FUNCTIONS: { name: string; detail: string }[] = [
+    // 聚合函数
+    { name: 'COUNT', detail: '聚合 - 计数' },
+    { name: 'SUM', detail: '聚合 - 求和' },
+    { name: 'AVG', detail: '聚合 - 平均值' },
+    { name: 'MAX', detail: '聚合 - 最大值' },
+    { name: 'MIN', detail: '聚合 - 最小值' },
+    { name: 'GROUP_CONCAT', detail: '聚合 - 拼接分组值' },
+    // 字符串函数
+    { name: 'CONCAT', detail: '字符串 - 拼接' },
+    { name: 'CONCAT_WS', detail: '字符串 - 带分隔符拼接' },
+    { name: 'SUBSTRING', detail: '字符串 - 截取子串' },
+    { name: 'SUBSTR', detail: '字符串 - 截取子串' },
+    { name: 'LEFT', detail: '字符串 - 从左截取' },
+    { name: 'RIGHT', detail: '字符串 - 从右截取' },
+    { name: 'LENGTH', detail: '字符串 - 字节长度' },
+    { name: 'CHAR_LENGTH', detail: '字符串 - 字符长度' },
+    { name: 'UPPER', detail: '字符串 - 转大写' },
+    { name: 'LOWER', detail: '字符串 - 转小写' },
+    { name: 'TRIM', detail: '字符串 - 去空格' },
+    { name: 'LTRIM', detail: '字符串 - 去左空格' },
+    { name: 'RTRIM', detail: '字符串 - 去右空格' },
+    { name: 'REPLACE', detail: '字符串 - 替换' },
+    { name: 'REVERSE', detail: '字符串 - 反转' },
+    { name: 'REPEAT', detail: '字符串 - 重复' },
+    { name: 'LPAD', detail: '字符串 - 左填充' },
+    { name: 'RPAD', detail: '字符串 - 右填充' },
+    { name: 'INSTR', detail: '字符串 - 查找位置' },
+    { name: 'LOCATE', detail: '字符串 - 查找位置' },
+    { name: 'FIND_IN_SET', detail: '字符串 - 在集合中查找' },
+    { name: 'FORMAT', detail: '字符串 - 数字格式化' },
+    { name: 'SPACE', detail: '字符串 - 生成空格' },
+    { name: 'INSERT', detail: '字符串 - 插入替换' },
+    { name: 'FIELD', detail: '字符串 - 返回位置索引' },
+    { name: 'ELT', detail: '字符串 - 按索引返回' },
+    { name: 'HEX', detail: '字符串 - 十六进制编码' },
+    { name: 'UNHEX', detail: '字符串 - 十六进制解码' },
+    // 数学函数
+    { name: 'ABS', detail: '数学 - 绝对值' },
+    { name: 'CEIL', detail: '数学 - 向上取整' },
+    { name: 'CEILING', detail: '数学 - 向上取整' },
+    { name: 'FLOOR', detail: '数学 - 向下取整' },
+    { name: 'ROUND', detail: '数学 - 四舍五入' },
+    { name: 'TRUNCATE', detail: '数学 - 截断小数' },
+    { name: 'MOD', detail: '数学 - 取模' },
+    { name: 'RAND', detail: '数学 - 随机数' },
+    { name: 'SIGN', detail: '数学 - 符号' },
+    { name: 'POWER', detail: '数学 - 幂运算' },
+    { name: 'POW', detail: '数学 - 幂运算' },
+    { name: 'SQRT', detail: '数学 - 平方根' },
+    { name: 'LOG', detail: '数学 - 对数' },
+    { name: 'LOG2', detail: '数学 - 以2为底对数' },
+    { name: 'LOG10', detail: '数学 - 以10为底对数' },
+    { name: 'LN', detail: '数学 - 自然对数' },
+    { name: 'EXP', detail: '数学 - e的次方' },
+    { name: 'PI', detail: '数学 - 圆周率' },
+    { name: 'GREATEST', detail: '数学 - 返回最大值' },
+    { name: 'LEAST', detail: '数学 - 返回最小值' },
+    // 日期时间函数
+    { name: 'NOW', detail: '日期 - 当前日期时间' },
+    { name: 'CURDATE', detail: '日期 - 当前日期' },
+    { name: 'CURRENT_DATE', detail: '日期 - 当前日期' },
+    { name: 'CURTIME', detail: '日期 - 当前时间' },
+    { name: 'CURRENT_TIME', detail: '日期 - 当前时间' },
+    { name: 'CURRENT_TIMESTAMP', detail: '日期 - 当前时间戳' },
+    { name: 'SYSDATE', detail: '日期 - 系统当前时间' },
+    { name: 'DATE', detail: '日期 - 提取日期部分' },
+    { name: 'TIME', detail: '日期 - 提取时间部分' },
+    { name: 'YEAR', detail: '日期 - 提取年份' },
+    { name: 'MONTH', detail: '日期 - 提取月份' },
+    { name: 'DAY', detail: '日期 - 提取天' },
+    { name: 'DAYOFWEEK', detail: '日期 - 星期几(1=周日)' },
+    { name: 'DAYOFYEAR', detail: '日期 - 年中第几天' },
+    { name: 'HOUR', detail: '日期 - 提取小时' },
+    { name: 'MINUTE', detail: '日期 - 提取分钟' },
+    { name: 'SECOND', detail: '日期 - 提取秒' },
+    { name: 'DATE_FORMAT', detail: '日期 - 格式化' },
+    { name: 'DATE_ADD', detail: '日期 - 加日期' },
+    { name: 'DATE_SUB', detail: '日期 - 减日期' },
+    { name: 'DATEDIFF', detail: '日期 - 日期差(天)' },
+    { name: 'TIMEDIFF', detail: '日期 - 时间差' },
+    { name: 'TIMESTAMPDIFF', detail: '日期 - 时间戳差' },
+    { name: 'TIMESTAMPADD', detail: '日期 - 时间戳加' },
+    { name: 'STR_TO_DATE', detail: '日期 - 字符串转日期' },
+    { name: 'UNIX_TIMESTAMP', detail: '日期 - Unix时间戳' },
+    { name: 'FROM_UNIXTIME', detail: '日期 - 从Unix时间戳转换' },
+    { name: 'LAST_DAY', detail: '日期 - 月末日期' },
+    { name: 'WEEK', detail: '日期 - 第几周' },
+    { name: 'QUARTER', detail: '日期 - 第几季度' },
+    { name: 'ADDDATE', detail: '日期 - 加日期' },
+    { name: 'SUBDATE', detail: '日期 - 减日期' },
+    // 条件/流程控制函数
+    { name: 'IF', detail: '条件 - 如果' },
+    { name: 'IFNULL', detail: '条件 - NULL替换' },
+    { name: 'NULLIF', detail: '条件 - 相等返回NULL' },
+    { name: 'COALESCE', detail: '条件 - 返回第一个非NULL' },
+    { name: 'CASE', detail: '条件 - 分支表达式' },
+    // 类型转换
+    { name: 'CAST', detail: '转换 - 类型转换' },
+    { name: 'CONVERT', detail: '转换 - 类型/字符集转换' },
+    // JSON 函数
+    { name: 'JSON_EXTRACT', detail: 'JSON - 提取值' },
+    { name: 'JSON_UNQUOTE', detail: 'JSON - 去引号' },
+    { name: 'JSON_SET', detail: 'JSON - 设置值' },
+    { name: 'JSON_INSERT', detail: 'JSON - 插入值' },
+    { name: 'JSON_REPLACE', detail: 'JSON - 替换值' },
+    { name: 'JSON_REMOVE', detail: 'JSON - 删除值' },
+    { name: 'JSON_CONTAINS', detail: 'JSON - 包含判断' },
+    { name: 'JSON_OBJECT', detail: 'JSON - 构建对象' },
+    { name: 'JSON_ARRAY', detail: 'JSON - 构建数组' },
+    { name: 'JSON_LENGTH', detail: 'JSON - 元素个数' },
+    { name: 'JSON_TYPE', detail: 'JSON - 值类型' },
+    { name: 'JSON_VALID', detail: 'JSON - 验证' },
+    { name: 'JSON_KEYS', detail: 'JSON - 获取键列表' },
+    // 加密/哈希函数
+    { name: 'MD5', detail: '加密 - MD5哈希' },
+    { name: 'SHA1', detail: '加密 - SHA1哈希' },
+    { name: 'SHA2', detail: '加密 - SHA2哈希' },
+    { name: 'UUID', detail: '工具 - 生成UUID' },
+    // 信息函数
+    { name: 'DATABASE', detail: '信息 - 当前数据库' },
+    { name: 'USER', detail: '信息 - 当前用户' },
+    { name: 'VERSION', detail: '信息 - MySQL版本' },
+    { name: 'CONNECTION_ID', detail: '信息 - 连接ID' },
+    { name: 'LAST_INSERT_ID', detail: '信息 - 最后插入ID' },
+    { name: 'ROW_COUNT', detail: '信息 - 影响行数' },
+    { name: 'FOUND_ROWS', detail: '信息 - 匹配总行数' },
+    { name: 'CHARSET', detail: '信息 - 字符集' },
+    { name: 'COLLATION', detail: '信息 - 排序规则' },
+    // 窗口函数
+    { name: 'ROW_NUMBER', detail: '窗口 - 行号' },
+    { name: 'RANK', detail: '窗口 - 排名(有间隔)' },
+    { name: 'DENSE_RANK', detail: '窗口 - 排名(无间隔)' },
+    { name: 'NTILE', detail: '窗口 - 分桶' },
+    { name: 'LAG', detail: '窗口 - 前一行' },
+    { name: 'LEAD', detail: '窗口 - 后一行' },
+    { name: 'FIRST_VALUE', detail: '窗口 - 第一个值' },
+    { name: 'LAST_VALUE', detail: '窗口 - 最后一个值' },
+    { name: 'NTH_VALUE', detail: '窗口 - 第N个值' },
+    // 其他
+    { name: 'DISTINCT', detail: '修饰 - 去重' },
+    { name: 'EXISTS', detail: '修饰 - 存在判断' },
+    { name: 'BETWEEN', detail: '修饰 - 范围判断' },
+    { name: 'LIKE', detail: '修饰 - 模式匹配' },
+    { name: 'REGEXP', detail: '修饰 - 正则匹配' },
+    { name: 'BENCHMARK', detail: '工具 - 性能测试' },
+    { name: 'SLEEP', detail: '工具 - 延时' },
+];
+
 const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
   const [query, setQuery] = useState(tab.query || 'SELECT * FROM ');
   
@@ -33,7 +191,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
   const [activeResultKey, setActiveResultKey] = useState<string>('');
   
   const [loading, setLoading] = useState(false);
-  const [currentQueryId, setCurrentQueryId] = useState<string>('');
+  const [, setCurrentQueryId] = useState<string>('');
   const runSeqRef = useRef(0);
   const currentQueryIdRef = useRef('');
   const [isSaveModalOpen, setIsSaveModalOpen] = useState(false);
@@ -50,6 +208,8 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
   const monacoRef = useRef<any>(null);
   const lastExternalQueryRef = useRef<string>(tab.query || '');
   const dragRef = useRef<{ startY: number, startHeight: number } | null>(null);
+  const queryEditorRootRef = useRef<HTMLDivElement | null>(null);
+  const editorPaneRef = useRef<HTMLDivElement | null>(null);
   const tablesRef = useRef<{dbName: string, tableName: string}[]>([]); // Store tables for autocomplete (cross-db)
   const allColumnsRef = useRef<{dbName: string, tableName: string, name: string, type: string}[]>([]); // Store all columns (cross-db)
   const visibleDbsRef = useRef<string[]>([]); // Store visible databases for cross-db intellisense
@@ -60,6 +220,8 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
       [connections]
   );
   const addSqlLog = useStore(state => state.addSqlLog);
+  const addTab = useStore(state => state.addTab);
+  const savedQueries = useStore(state => state.savedQueries);
   const currentConnectionIdRef = useRef(currentConnectionId);
   const currentDbRef = useRef(currentDb);
   const connectionsRef = useRef(connections);
@@ -74,6 +236,18 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
   const shortcutOptions = useStore(state => state.shortcutOptions);
   const activeTabId = useStore(state => state.activeTabId);
 
+  const currentSavedQuery = useMemo(() => {
+      const savedId = String(tab.savedQueryId || '').trim();
+      if (savedId) {
+          return savedQueries.find((item) => item.id === savedId) || null;
+      }
+      const tabId = String(tab.id || '').trim();
+      if (!tabId) {
+          return null;
+      }
+      return savedQueries.find((item) => item.id === tabId) || null;
+  }, [savedQueries, tab.id, tab.savedQueryId]);
+
   useEffect(() => {
       currentConnectionIdRef.current = currentConnectionId;
   }, [currentConnectionId]);
@@ -159,7 +333,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
               setDbList([]);
           }
       };
-      fetchDbs();
+      void fetchDbs();
   }, [currentConnectionId, connections]);
 
   // Fetch Metadata for Autocomplete (Cross-database)
@@ -211,7 +385,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
           tablesRef.current = allTables;
           allColumnsRef.current = allColumns;
       };
-      fetchMetadata();
+      void fetchMetadata();
   }, [currentConnectionId, connections, dbList]); // dbList 变化时触发重新加载
 
   // Query ID management helpers
@@ -346,7 +520,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
               const linePrefix = model.getLineContent(position.lineNumber).slice(0, position.column - 1);
 
               // 0) 三段式 db.table.column 格式：当输入 db.table. 时提示列
-              const threePartMatch = linePrefix.match(/([`"]?[\w]+[`"]?)\.([`"]?[\w]+[`"]?)\.(\w*)$/);
+              const threePartMatch = linePrefix.match(/([`"]?\w+[`"]?)\.([`"]?\w+[`"]?)\.(\w*)$/);
               if (threePartMatch) {
                   const dbPart = stripQuotes(threePartMatch[1]);
                   const tablePart = stripQuotes(threePartMatch[2]);
@@ -374,7 +548,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
               }
 
               // 1) 两段式 qualifier.xxx 格式
-              const qualifierMatch = linePrefix.match(/([`"]?[A-Za-z_][\w]*[`"]?)\.(\w*)$/);
+              const qualifierMatch = linePrefix.match(/([`"]?[A-Za-z_]\w*[`"]?)\.(\w*)$/);
               if (qualifierMatch) {
                   const qualifier = stripQuotes(qualifierMatch[1]);
                   const prefix = (qualifierMatch[2] || '').toLowerCase();
@@ -439,7 +613,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
 
                   const aliasMap: Record<string, {dbName: string, tableName: string}> = {};
                   // Capture table and optional alias, support db.table format
-                  const aliasRegex = /\b(?:FROM|JOIN|UPDATE|INTO|DELETE\s+FROM)\s+([`"]?[\w]+[`"]?(?:\s*\.\s*[`"]?[\w]+[`"]?)?)(?:\s+(?:AS\s+)?([`"]?[\w]+[`"]?))?/gi;
+                  const aliasRegex = /\b(?:FROM|JOIN|UPDATE|INTO|DELETE\s+FROM)\s+([`"]?\w+[`"]?(?:\s*\.\s*[`"]?\w+[`"]?)?)(?:\s+(?:AS\s+)?([`"]?\w+[`"]?))?/gi;
                   let m;
                   while ((m = aliasRegex.exec(fullText)) !== null) {
                       const tableIdent = normalizeQualifiedName(m[1] || '');
@@ -468,7 +642,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                   const tableInfo = aliasMap[qualifier.toLowerCase()];
                   if (tableInfo) {
                       // Prefer preloaded MySQL all-columns cache
-                      let cols: { name: string, type?: string, tableName?: string, dbName?: string }[] = [];
+                      let cols: { name: string, type?: string, tableName?: string, dbName?: string }[];
                       if (allColumnsRef.current.length > 0) {
                           cols = allColumnsRef.current
                               .filter(c =>
@@ -498,7 +672,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
               }
 
               // 2) global/table/column completion
-              const tableRegex = /\b(?:FROM|JOIN|UPDATE|INTO|DELETE\s+FROM)\s+([`"]?[\w]+[`"]?(?:\s*\.\s*[`"]?[\w]+[`"]?)?)/gi;
+              const tableRegex = /\b(?:FROM|JOIN|UPDATE|INTO|DELETE\s+FROM)\s+([`"]?\w+[`"]?(?:\s*\.\s*[`"]?\w+[`"]?)?)/gi;
               const foundTables = new Set<string>();
               let match;
               while ((match = tableRegex.exec(fullText)) !== null) {
@@ -509,6 +683,17 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
               }
 
               const currentDatabase = currentDbRef.current || '';
+              const wordPrefix = (word.word || '').toLowerCase();
+              const startsWithPrefix = (candidate: string) => !wordPrefix || candidate.toLowerCase().startsWith(wordPrefix);
+              const expectsTableName = /\b(?:FROM|JOIN|UPDATE|INTO|DELETE\s+FROM|TABLE|DESCRIBE|DESC|EXPLAIN)\s+[`"]?[\w.]*$/i.test(linePrefix.trim());
+              const shouldBoostKeywords = !expectsTableName
+                  && wordPrefix.length > 0
+                  && SQL_KEYWORDS.some((keyword) => keyword.toLowerCase().startsWith(wordPrefix));
+              const sortGroups = shouldBoostKeywords
+                  ? { keyword: '00', func: '05', columnCurrent: '10', columnOther: '11', tableCurrent: '20', tableOther: '21', db: '30' }
+                  : expectsTableName
+                      ? { keyword: '20', func: '25', columnCurrent: '10', columnOther: '11', tableCurrent: '00', tableOther: '01', db: '30' }
+                      : { keyword: '30', func: '25', columnCurrent: '00', columnOther: '01', tableCurrent: '10', tableOther: '11', db: '20' };
 
               // 相关列提示：匹配 SQL 中引用的表（FROM/JOIN 等）
               // 权重最高，输入 WHERE 条件时优先显示
@@ -516,7 +701,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                   .filter(c => {
                       const fullIdent = `${c.dbName}.${c.tableName}`.toLowerCase();
                       const shortIdent = (c.tableName || '').toLowerCase();
-                      return foundTables.has(fullIdent) || foundTables.has(shortIdent);
+                      return (foundTables.has(fullIdent) || foundTables.has(shortIdent)) && startsWithPrefix(c.name || '');
                   })
                   .map(c => {
                       // 当前库的表字段优先级更高
@@ -527,12 +712,18 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                           insertText: c.name,
                           detail: `${c.type} (${c.dbName}.${c.tableName})`,
                           range,
-                          sortText: isCurrentDb ? '00' + c.name : '01' + c.name // FROM 表字段最优先
+                          sortText: isCurrentDb ? sortGroups.columnCurrent + c.name : sortGroups.columnOther + c.name,
                       };
                   });
 
               // 表提示：当前库显示表名，其他库显示 db.table 格式
-              const tableSuggestions = tablesRef.current.map(t => {
+              const tableSuggestions = tablesRef.current
+                .filter(t => {
+                    const isCurrentDb = (t.dbName || '').toLowerCase() === currentDatabase.toLowerCase();
+                    const label = isCurrentDb ? t.tableName : `${t.dbName}.${t.tableName}`;
+                    return startsWithPrefix(label || '');
+                })
+                .map(t => {
                   const isCurrentDb = (t.dbName || '').toLowerCase() === currentDatabase.toLowerCase();
                   const label = isCurrentDb ? t.tableName : `${t.dbName}.${t.tableName}`;
                   const insertText = isCurrentDb ? t.tableName : `${t.dbName}.${t.tableName}`;
@@ -542,33 +733,51 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                       insertText,
                       detail: `Table (${t.dbName})`,
                       range,
-                      sortText: isCurrentDb ? '10' + t.tableName : '11' + t.tableName // 表次优先
+                      sortText: isCurrentDb ? sortGroups.tableCurrent + t.tableName : sortGroups.tableOther + t.tableName,
                   };
               });
 
               // 数据库提示
-              const dbSuggestions = visibleDbsRef.current.map(db => ({
-                  label: db,
-                  kind: monaco.languages.CompletionItemKind.Module,
-                  insertText: db,
-                  detail: 'Database',
-                  range,
-                  sortText: '20' + db // 数据库最后
-              }));
+              const dbSuggestions = visibleDbsRef.current
+                  .filter((db) => startsWithPrefix(db))
+                  .map(db => ({
+                      label: db,
+                      kind: monaco.languages.CompletionItemKind.Module,
+                      insertText: db,
+                      detail: 'Database',
+                      range,
+                      sortText: sortGroups.db + db,
+                  }));
 
               // 关键字提示
-              const keywordSuggestions = ['SELECT', 'FROM', 'WHERE', 'LIMIT', 'INSERT', 'UPDATE', 'DELETE', 'JOIN', 'LEFT', 'RIGHT', 'INNER', 'OUTER', 'ON', 'GROUP BY', 'ORDER BY', 'AS', 'AND', 'OR', 'NOT', 'NULL', 'IS', 'IN', 'VALUES', 'SET', 'CREATE', 'TABLE', 'DROP', 'ALTER', 'Add', 'MODIFY', 'CHANGE', 'COLUMN', 'KEY', 'PRIMARY', 'FOREIGN', 'REFERENCES', 'CONSTRAINT', 'DEFAULT', 'AUTO_INCREMENT', 'COMMENT', 'SHOW', 'DESCRIBE', 'EXPLAIN'].map(k => ({
+              const keywordSuggestions = SQL_KEYWORDS
+                  .filter((k) => startsWithPrefix(k))
+                  .map(k => ({
                   label: k,
                   kind: monaco.languages.CompletionItemKind.Keyword,
                   insertText: k,
                   range,
-                  sortText: '30' + k // 关键字权重最低
+                  sortText: sortGroups.keyword + k,
               }));
 
+              // 内置函数提示
+              const funcSuggestions = SQL_FUNCTIONS
+                  .filter((f) => startsWithPrefix(f.name))
+                  .map(f => ({
+                      label: f.name,
+                      kind: monaco.languages.CompletionItemKind.Function,
+                      insertText: f.name + '($0)',
+                      insertTextRules: monaco.languages.CompletionItemInsertTextRule.InsertAsSnippet,
+                      detail: f.detail,
+                      range,
+                      sortText: sortGroups.func + f.name,
+                  }));
+
               const suggestions = [
                   ...relevantColumns,   // FROM 表的列最优先
                   ...tableSuggestions,  // 表次之
                   ...dbSuggestions,     // 数据库
+                  ...funcSuggestions,   // 内置函数
                   ...keywordSuggestions // 关键字最后
               ];
               return { suggestions };
@@ -581,7 +790,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
           const formatted = format(getCurrentQuery(), { language: 'mysql', keywordCase: sqlFormatOptions.keywordCase });
           syncQueryToEditor(formatted);
       } catch (e) {
-          message.error("格式化失败: SQL 语法可能有误");
+          void message.error("格式化失败: SQL 语法可能有误");
       }
   };
 
@@ -1024,20 +1233,52 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
   };
 
   const applyAutoLimit = (sql: string, dbType: string, maxRows: number): { sql: string; applied: boolean; maxRows: number } => {
-      const normalizedType = (dbType || 'mysql').toLowerCase();
-      const supportsLimit = normalizedType === 'mysql' || normalizedType === 'mariadb' || normalizedType === 'diros' || normalizedType === 'sphinx' || normalizedType === 'postgres' || normalizedType === 'kingbase' || normalizedType === 'sqlite' || normalizedType === 'duckdb' || normalizedType === 'tdengine' || normalizedType === 'clickhouse' || normalizedType === '';
-      if (!supportsLimit) return { sql, applied: false, maxRows };
       if (!Number.isFinite(maxRows) || maxRows <= 0) return { sql, applied: false, maxRows };
+      const normalizedType = (dbType || 'mysql').toLowerCase();
+
+      // 只对 SELECT 语句自动加限制
+      const keyword = getLeadingKeyword(sql);
+      if (keyword !== 'SELECT') return { sql, applied: false, maxRows };
 
       const { main, tail } = splitSqlTail(sql);
       if (!main.trim()) return { sql, applied: false, maxRows };
 
       const fromPos = findTopLevelKeyword(main, 'from');
       const limitPos = findTopLevelKeyword(main, 'limit');
+      // 已有 LIMIT → 不注入
       if (limitPos >= 0 && (fromPos < 0 || limitPos > fromPos)) return { sql, applied: false, maxRows };
       const fetchPos = findTopLevelKeyword(main, 'fetch');
+      // 已有 FETCH → 不注入
       if (fetchPos >= 0 && (fromPos < 0 || fetchPos > fromPos)) return { sql, applied: false, maxRows };
 
+      // SQL Server / mssql: 检查是否已有 TOP，未有则注入 SELECT TOP N
+      if (normalizedType === 'sqlserver' || normalizedType === 'mssql') {
+          const topPos = findTopLevelKeyword(main, 'top');
+          if (topPos >= 0) return { sql, applied: false, maxRows }; // 已有 TOP
+          // 在 SELECT 关键字之后插入 TOP N
+          const selectPos = findTopLevelKeyword(main, 'select');
+          if (selectPos < 0) return { sql, applied: false, maxRows };
+          const afterSelect = selectPos + 'SELECT'.length;
+          // 处理 SELECT DISTINCT 的情况
+          const restAfterSelect = main.slice(afterSelect);
+          const distinctMatch = restAfterSelect.match(/^(\s+DISTINCT\b)/i);
+          const insertOffset = distinctMatch ? afterSelect + distinctMatch[1].length : afterSelect;
+          const nextMain = main.slice(0, insertOffset) + ` TOP ${maxRows}` + main.slice(insertOffset);
+          return { sql: nextMain + tail, applied: true, maxRows };
+      }
+
+      // Oracle / Dameng: 使用 FETCH FIRST N ROWS ONLY（Oracle 12c+ 标准语法）
+      if (normalizedType === 'oracle' || normalizedType === 'dameng') {
+          // 检查是否已有 ROWNUM 限制
+          const rownumPos = findTopLevelKeyword(main, 'rownum');
+          if (rownumPos >= 0) return { sql, applied: false, maxRows };
+          const offsetPos = findTopLevelKeyword(main, 'offset');
+          if (offsetPos >= 0 && (fromPos < 0 || offsetPos > fromPos)) return { sql, applied: false, maxRows };
+          const nextMain = main.trimEnd() + ` FETCH FIRST ${maxRows} ROWS ONLY`;
+          return { sql: nextMain + tail, applied: true, maxRows };
+      }
+
+      // 通用 LIMIT 语法（MySQL, PostgreSQL, SQLite, ClickHouse, DuckDB 等）
       const offsetPos = findTopLevelKeyword(main, 'offset');
       const forPos = findTopLevelKeyword(main, 'for');
       const lockPos = findTopLevelKeyword(main, 'lock');
@@ -1112,36 +1353,31 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
         const dbType = String((config as any).type || 'mysql');
         const normalizedDbType = dbType.trim().toLowerCase();
         const normalizedRawSQL = String(rawSQL || '').replace(/；/g, ';');
-        const splitInput = normalizedDbType === 'mongodb'
-            ? normalizedRawSQL
+
+        // MongoDB 仍走逐条执行的旧路径
+        const isMongoDB = normalizedDbType === 'mongodb';
+
+        if (isMongoDB) {
+            // MongoDB: 保持逐条执行
+            const splitInput = normalizedRawSQL
                 .replace(/^\s*\/\/.*$/gm, '')
-                .replace(/^\s*#.*$/gm, '')
-            : normalizedRawSQL;
-        const statements = splitSQLStatements(splitInput);
-        if (statements.length === 0) {
-            message.info('没有可执行的 SQL。');
-            setResultSets([]);
-            setActiveResultKey('');
-            return;
-        }
+                .replace(/^\s*#.*$/gm, '');
+            const statements = splitSQLStatements(splitInput);
+            if (statements.length === 0) {
+                message.info('没有可执行的 SQL。');
+                setResultSets([]);
+                setActiveResultKey('');
+                return;
+            }
 
-        const nextResultSets: ResultSet[] = [];
-        const maxRows = Number(queryOptions?.maxRows) || 0;
-        const forceReadOnlyResult = connCaps.forceReadOnlyQueryResult;
-        const wantsLimitProbe = Number.isFinite(maxRows) && maxRows > 0;
-        const probeLimit = wantsLimitProbe ? (maxRows + 1) : 0;
-        let anyTruncated = false;
-        const pendingPk: Array<{ resultKey: string; tableName: string }> = [];
+            const nextResultSets: ResultSet[] = [];
+            const maxRows = Number(queryOptions?.maxRows) || 0;
+            const wantsLimitProbe = Number.isFinite(maxRows) && maxRows > 0;
+            let anyTruncated = false;
 
-        for (let idx = 0; idx < statements.length; idx++) {
-            const rawStatement = statements[idx];
-            const leadingKeyword = getLeadingKeyword(rawStatement);
-            const shouldAutoLimit = leadingKeyword === 'select' || leadingKeyword === 'with';
-
-            const limitApplied = shouldAutoLimit && wantsLimitProbe;
-            const limited = limitApplied ? applyAutoLimit(rawStatement, dbType, probeLimit) : { sql: rawStatement, applied: false, maxRows: probeLimit };
-            let executedSql = limited.sql;
-            if (String(dbType || '').trim().toLowerCase() === 'mongodb') {
+            for (let idx = 0; idx < statements.length; idx++) {
+                const rawStatement = statements[idx];
+                let executedSql = rawStatement;
                 const shellConvert = convertMongoShellToJsonCommand(executedSql);
                 if (shellConvert.recognized) {
                     if (shellConvert.error) {
@@ -1155,10 +1391,108 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                         executedSql = shellConvert.command;
                     }
                 }
-            }
-            const startTime = Date.now();
+                const startTime = Date.now();
+                let queryId: string;
+                try {
+                    queryId = await GenerateQueryID();
+                } catch (error) {
+                    console.warn('GenerateQueryID failed, using local UUID fallback:', error);
+                    queryId = 'query-' + uuidv4();
+                }
+                setQueryId(queryId);
 
-            // Generate query ID for cancellation using backend UUID with fallback
+                const res = await DBQueryWithCancel(config as any, currentDb, executedSql, queryId);
+                const duration = Date.now() - startTime;
+                addSqlLog({
+                    id: `log-${Date.now()}-query-${idx + 1}`,
+                    timestamp: Date.now(),
+                    sql: executedSql,
+                    status: res.success ? 'success' : 'error',
+                    duration,
+                    message: res.success ? '' : res.message,
+                    affectedRows: (res.success && !Array.isArray(res.data)) ? (res.data as any).affectedRows : (Array.isArray(res.data) ? res.data.length : undefined),
+                    dbName: currentDb
+                });
+                if (!res.success) {
+                    const prefix = statements.length > 1 ? `第 ${idx + 1} 条语句执行失败：` : '';
+                    message.error(prefix + res.message);
+                    setResultSets([]);
+                    setActiveResultKey('');
+                    return;
+                }
+                if (Array.isArray(res.data)) {
+                    let rows = (res.data as any[]) || [];
+                    let truncated = false;
+                    if (wantsLimitProbe && Number.isFinite(maxRows) && maxRows > 0 && rows.length > maxRows) {
+                        truncated = true;
+                        anyTruncated = true;
+                        rows = rows.slice(0, maxRows);
+                    }
+                    const cols = (res.fields && res.fields.length > 0)
+                        ? (res.fields as string[])
+                        : (rows.length > 0 ? Object.keys(rows[0]) : []);
+                    rows.forEach((row: any, i: number) => {
+                        if (row && typeof row === 'object') row[GONAVI_ROW_KEY] = i;
+                    });
+                    nextResultSets.push({
+                        key: `result-${idx + 1}`,
+                        sql: rawStatement,
+                        exportSql: rawStatement,
+                        rows,
+                        columns: cols,
+                        pkColumns: [],
+                        readOnly: true,
+                        truncated
+                    });
+                } else {
+                    const affected = Number((res.data as any)?.affectedRows);
+                    if (Number.isFinite(affected)) {
+                        const row = { affectedRows: affected };
+                        (row as any)[GONAVI_ROW_KEY] = 0;
+                        nextResultSets.push({
+                            key: `result-${idx + 1}`,
+                            sql: rawStatement,
+                            exportSql: rawStatement,
+                            rows: [row],
+                            columns: ['affectedRows'],
+                            pkColumns: [],
+                            readOnly: true
+                        });
+                    }
+                }
+            }
+            setResultSets(nextResultSets);
+            setActiveResultKey(nextResultSets[0]?.key || '');
+            if (statements.length > 1) {
+                message.success(`已执行 ${statements.length} 条语句，生成 ${nextResultSets.length} 个结果集。`);
+            } else if (nextResultSets.length === 0) {
+                message.success('执行成功。');
+            }
+            if (anyTruncated && maxRows > 0) {
+                message.warning(`结果集已自动限制为最多 ${maxRows} 行（可在工具栏调整）。`);
+            }
+        } else {
+            // 非 MongoDB：使用 DBQueryMulti 一次性执行多条 SQL，后端返回多结果集
+            let fullSQL = normalizedRawSQL;
+            if (!fullSQL.trim()) {
+                message.info('没有可执行的 SQL。');
+                setResultSets([]);
+                setActiveResultKey('');
+                return;
+            }
+
+            // 自动给 SELECT 语句注入行数限制（防止大结果集卡死）
+            const maxRowsForLimit = Number(queryOptions?.maxRows) || 0;
+            if (Number.isFinite(maxRowsForLimit) && maxRowsForLimit > 0) {
+                const stmts = splitSQLStatements(fullSQL);
+                const limitedStmts = stmts.map(s => {
+                    const result = applyAutoLimit(s, normalizedDbType, maxRowsForLimit);
+                    return result.sql;
+                });
+                fullSQL = limitedStmts.join(';\n');
+            }
+
+            const startTime = Date.now();
             let queryId: string;
             try {
                 queryId = await GenerateQueryID();
@@ -1168,22 +1502,20 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
             }
             setQueryId(queryId);
 
-            const res = await DBQueryWithCancel(config as any, currentDb, executedSql, queryId);
+            const res = await DBQueryMulti(config as any, currentDb, fullSQL, queryId);
             const duration = Date.now() - startTime;
 
             addSqlLog({
-                id: `log-${Date.now()}-query-${idx + 1}`,
+                id: `log-${Date.now()}-query-multi`,
                 timestamp: Date.now(),
-                sql: executedSql,
+                sql: fullSQL,
                 status: res.success ? 'success' : 'error',
                 duration,
                 message: res.success ? '' : res.message,
-                affectedRows: (res.success && !Array.isArray(res.data)) ? (res.data as any).affectedRows : (Array.isArray(res.data) ? res.data.length : undefined),
                 dbName: currentDb
             });
 
             if (!res.success) {
-                // 检查是否为查询取消错误
                 const errorMsg = res.message.toLowerCase();
                 const isCancelledError = errorMsg.includes('context canceled') ||
                                          errorMsg.includes('查询已取消') ||
@@ -1191,72 +1523,49 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                                          errorMsg.includes('cancelled') ||
                                          errorMsg.includes('statement canceled') ||
                                          errorMsg.includes('sql: statement canceled');
-
-                // 确保不是超时错误
                 const isTimeoutError = errorMsg.includes('context deadline exceeded') ||
                                        errorMsg.includes('timeout') ||
                                        errorMsg.includes('超时') ||
                                        errorMsg.includes('deadline exceeded');
 
                 if (isCancelledError && !isTimeoutError) {
-                    // 查询已被用户取消，不显示错误消息，清理状态
                     setResultSets([]);
                     setActiveResultKey('');
-                    // 清除查询ID，与handleCancel保持一致
                     if (currentQueryIdRef.current) {
                         clearQueryId();
                     }
                     return;
                 }
 
-                const prefix = statements.length > 1 ? `第 ${idx + 1} 条语句执行失败：` : '';
-                message.error(prefix + res.message);
+                message.error(res.message);
                 setResultSets([]);
                 setActiveResultKey('');
                 return;
             }
 
-            if (Array.isArray(res.data)) {
-                let rows = (res.data as any[]) || [];
-                let truncated = false;
-                if (limited.applied && Number.isFinite(maxRows) && maxRows > 0 && rows.length > maxRows) {
-                    truncated = true;
-                    anyTruncated = true;
-                    rows = rows.slice(0, maxRows);
-                }
-                const cols = (res.fields && res.fields.length > 0)
-                    ? (res.fields as string[])
-                    : (rows.length > 0 ? Object.keys(rows[0]) : []);
+            // res.data 是 ResultSetData[] 数组
+            const resultSetDataArray = Array.isArray(res.data) ? (res.data as any[]) : [];
+            const nextResultSets: ResultSet[] = [];
+            const maxRows = Number(queryOptions?.maxRows) || 0;
+            const forceReadOnlyResult = connCaps.forceReadOnlyQueryResult;
+            let anyTruncated = false;
+            const pendingPk: Array<{ resultKey: string; tableName: string }> = [];
 
-                rows.forEach((row: any, i: number) => {
-                    if (row && typeof row === 'object') row[GONAVI_ROW_KEY] = i;
-                });
+            // 前端也拆分语句用于匹配原始 SQL（展示和表名检测）
+            const statements = splitSQLStatements(fullSQL);
 
-                let simpleTableName: string | undefined = undefined;
-                const tableMatch = rawStatement.match(/^\s*SELECT\s+\*\s+FROM\s+[`"]?(\w+)[`"]?\s*(?:WHERE.*)?(?:ORDER BY.*)?(?:LIMIT.*)?$/i);
-                if (tableMatch) {
-                    simpleTableName = tableMatch[1];
-                    if (!forceReadOnlyResult) {
-                        pendingPk.push({ resultKey: `result-${idx + 1}`, tableName: simpleTableName });
-                    }
-                }
+            for (let idx = 0; idx < resultSetDataArray.length; idx++) {
+                const rsData = resultSetDataArray[idx];
+                const rawStatement = (idx < statements.length) ? statements[idx] : '';
 
-                nextResultSets.push({
-                    key: `result-${idx + 1}`,
-                    sql: rawStatement,
-                    exportSql: limited.applied ? applyAutoLimit(rawStatement, dbType, Math.max(1, Number(maxRows) || 1)).sql : rawStatement,
-                    rows,
-                    columns: cols,
-                    tableName: simpleTableName,
-                    pkColumns: [],
-                    readOnly: true,
-                    pkLoading: !!simpleTableName,
-                    truncated
-                });
-            } else {
-                const affected = Number((res.data as any)?.affectedRows);
-                if (Number.isFinite(affected)) {
-                    const row = { affectedRows: affected };
+                // 检查是否为 affectedRows 类结果集
+                const isAffectedResult = Array.isArray(rsData.rows) && rsData.rows.length === 1
+                    && rsData.columns && rsData.columns.length === 1
+                    && rsData.columns[0] === 'affectedRows';
+
+                if (isAffectedResult) {
+                    const affected = Number(rsData.rows[0]?.affectedRows);
+                    const row = { affectedRows: Number.isFinite(affected) ? affected : 0 };
                     (row as any)[GONAVI_ROW_KEY] = 0;
                     nextResultSets.push({
                         key: `result-${idx + 1}`,
@@ -1267,37 +1576,80 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                         pkColumns: [],
                         readOnly: true
                     });
+                } else {
+                    let rows = Array.isArray(rsData.rows) ? rsData.rows : [];
+                    let truncated = false;
+                    if (Number.isFinite(maxRows) && maxRows > 0 && rows.length > maxRows) {
+                        truncated = true;
+                        anyTruncated = true;
+                        rows = rows.slice(0, maxRows);
+                    }
+                    const cols = (rsData.columns && rsData.columns.length > 0)
+                        ? rsData.columns
+                        : (rows.length > 0 ? Object.keys(rows[0]) : []);
+
+                    rows.forEach((row: any, i: number) => {
+                        if (row && typeof row === 'object') row[GONAVI_ROW_KEY] = i;
+                    });
+
+                    let simpleTableName: string | undefined = undefined;
+                    if (rawStatement) {
+                        const tableMatch = rawStatement.match(/^\s*SELECT\s+\*\s+FROM\s+[`"]?(\w+)[`"]?\s*(?:WHERE.*)?(?:ORDER BY.*)?(?:LIMIT.*)?$/i);
+                        if (tableMatch) {
+                            simpleTableName = tableMatch[1];
+                            if (!forceReadOnlyResult) {
+                                pendingPk.push({ resultKey: `result-${idx + 1}`, tableName: simpleTableName });
+                            }
+                        }
+                    }
+
+                    nextResultSets.push({
+                        key: `result-${idx + 1}`,
+                        sql: rawStatement,
+                        exportSql: rawStatement,
+                        rows,
+                        columns: cols,
+                        tableName: simpleTableName,
+                        pkColumns: [],
+                        readOnly: true,
+                        pkLoading: !!simpleTableName,
+                        truncated
+                    });
                 }
             }
-        }
 
-        setResultSets(nextResultSets);
-        setActiveResultKey(nextResultSets[0]?.key || '');
+            setResultSets(nextResultSets);
+            setActiveResultKey(nextResultSets[0]?.key || '');
 
-        pendingPk.forEach(({ resultKey, tableName }) => {
-            DBGetColumns(config as any, currentDb, tableName)
-                .then((resCols: any) => {
-                    if (runSeqRef.current !== runSeq) return;
-                    if (!resCols?.success) {
+            pendingPk.forEach(({ resultKey, tableName }) => {
+                DBGetColumns(config as any, currentDb, tableName)
+                    .then((resCols: any) => {
+                        if (runSeqRef.current !== runSeq) return;
+                        if (!resCols?.success) {
+                            setResultSets(prev => prev.map(rs => rs.key === resultKey ? { ...rs, pkLoading: false, readOnly: false } : rs));
+                            return;
+                        }
+                        const primaryKeys = (resCols.data as ColumnDefinition[]).filter(c => c.key === 'PRI').map(c => c.name);
+                        setResultSets(prev => prev.map(rs => rs.key === resultKey ? { ...rs, pkColumns: primaryKeys, pkLoading: false, readOnly: false } : rs));
+                    })
+                    .catch(() => {
+                        if (runSeqRef.current !== runSeq) return;
                         setResultSets(prev => prev.map(rs => rs.key === resultKey ? { ...rs, pkLoading: false, readOnly: false } : rs));
-                        return;
-                    }
-                    const primaryKeys = (resCols.data as ColumnDefinition[]).filter(c => c.key === 'PRI').map(c => c.name);
-                    setResultSets(prev => prev.map(rs => rs.key === resultKey ? { ...rs, pkColumns: primaryKeys, pkLoading: false, readOnly: false } : rs));
-                })
-                .catch(() => {
-                    if (runSeqRef.current !== runSeq) return;
-                    setResultSets(prev => prev.map(rs => rs.key === resultKey ? { ...rs, pkLoading: false, readOnly: false } : rs));
-                });
-        });
+                    });
+            });
 
-        if (statements.length > 1) {
-            message.success(`已执行 ${statements.length} 条语句，生成 ${nextResultSets.length} 个结果集。`);
-        } else if (nextResultSets.length === 0) {
-            message.success('执行成功。');
-        }
-        if (anyTruncated && maxRows > 0) {
-            message.warning(`结果集已自动限制为最多 ${maxRows} 行（可在工具栏调整）。`);
+            // 后端附带的提示信息（如数据源不支持原生多语句执行的回退提示）
+            if (res.message) {
+                message.info(res.message);
+            }
+            if (resultSetDataArray.length > 1) {
+                message.success(`已执行完成，生成 ${nextResultSets.length} 个结果集。`);
+            } else if (nextResultSets.length === 0) {
+                message.success('执行成功。');
+            }
+            if (anyTruncated && maxRows > 0) {
+                message.warning(`结果集已自动限制为最多 ${maxRows} 行（可在工具栏调整）。`);
+            }
         }
     } catch (e: any) {
         message.error("Error executing query: " + e.message);
@@ -1341,6 +1693,46 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
     }
   };
 
+  useEffect(() => {
+      const handleSelectAllInEditor = (event: KeyboardEvent) => {
+          if (activeTabId !== tab.id) {
+              return;
+          }
+          if (!(event.ctrlKey || event.metaKey) || event.altKey || event.shiftKey || event.key.toLowerCase() !== 'a') {
+              return;
+          }
+
+          const editor = editorRef.current;
+          if (!editor) {
+              return;
+          }
+
+          const targetNode = event.target instanceof Node ? event.target : null;
+          const editorHasFocus = !!editor.hasTextFocus?.();
+          const inEditorPane = !!(targetNode && editorPaneRef.current?.contains(targetNode));
+          const inQueryEditor = !!(targetNode && queryEditorRootRef.current?.contains(targetNode));
+          if (!editorHasFocus && !inEditorPane) {
+              return;
+          }
+          if (!editorHasFocus && isEditableElement(event.target) && !inEditorPane) {
+              return;
+          }
+          if (!editorHasFocus && !inQueryEditor) {
+              return;
+          }
+
+          event.preventDefault();
+          event.stopPropagation();
+          editor.focus?.();
+          editor.trigger('keyboard', 'editor.action.selectAll', null);
+      };
+
+      window.addEventListener('keydown', handleSelectAllInEditor, true);
+      return () => {
+          window.removeEventListener('keydown', handleSelectAllInEditor, true);
+      };
+  }, [activeTabId, tab.id]);
+
   useEffect(() => {
       const binding = shortcutOptions.runQuery;
       if (!binding?.enabled || !binding.combo) {
@@ -1383,16 +1775,60 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
       };
   }, [activeTabId, tab.id, handleRun]);
 
+  const resolveDefaultQueryName = () => {
+      const rawTitle = String(tab.title || '').trim();
+      if (!rawTitle || rawTitle.startsWith('新建查询')) {
+          return '未命名查询';
+      }
+      return rawTitle;
+  };
+
+  const persistQuery = (payload: { id: string; name: string; createdAt?: number }) => {
+      const sql = getCurrentQuery();
+      const saved = {
+          id: payload.id,
+          name: payload.name,
+          sql,
+          connectionId: currentConnectionId,
+          dbName: currentDb || tab.dbName || '',
+          createdAt: payload.createdAt ?? Date.now(),
+      };
+      saveQuery(saved);
+      addTab({
+          ...tab,
+          title: payload.name,
+          query: sql,
+          connectionId: currentConnectionId,
+          dbName: currentDb || tab.dbName || '',
+          savedQueryId: payload.id,
+      });
+      return saved;
+  };
+
+  const handleQuickSave = () => {
+      const existed = currentSavedQuery || null;
+      const fallbackSavedId = String(tab.savedQueryId || '').trim();
+      const saveId = existed?.id || fallbackSavedId || '';
+      if (!saveId) {
+          saveForm.setFieldsValue({ name: resolveDefaultQueryName() });
+          setIsSaveModalOpen(true);
+          return;
+      }
+      const saveName = existed?.name || resolveDefaultQueryName();
+      persistQuery({ id: saveId, name: saveName, createdAt: existed?.createdAt });
+      message.success('查询已保存！');
+  };
+
   const handleSave = async () => {
       try {
           const values = await saveForm.validateFields();
-          saveQuery({
-              id: tab.id.startsWith('saved-') ? tab.id : `saved-${Date.now()}`,
-              name: values.name,
-              sql: getCurrentQuery(),
-              connectionId: currentConnectionId,
-              dbName: currentDb || tab.dbName || '',
-              createdAt: Date.now()
+          const existed = currentSavedQuery || null;
+          const fallbackSavedId = String(tab.savedQueryId || '').trim();
+          const nextSavedId = existed?.id || fallbackSavedId || `saved-${Date.now()}`;
+          persistQuery({
+              id: nextSavedId,
+              name: String(values.name || '').trim() || '未命名查询',
+              createdAt: existed?.createdAt,
           });
           message.success('查询已保存！');
           setIsSaveModalOpen(false);
@@ -1408,8 +1844,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
 
           setActiveResultKey(prevActive => {
               if (prevActive && prevActive !== key) return prevActive;
-              const nextKey = next[idx]?.key || next[idx - 1]?.key || next[0]?.key || '';
-              return nextKey;
+              return next[idx]?.key || next[idx - 1]?.key || next[0]?.key || '';
           });
 
           return next;
@@ -1417,7 +1852,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
   };
 
   return (
-    <div style={{ flex: '1 1 auto', minHeight: 0, display: 'flex', flexDirection: 'column', height: '100%', overflow: 'hidden' }}>
+    <div ref={queryEditorRootRef} style={{ flex: '1 1 auto', minHeight: 0, display: 'flex', flexDirection: 'column', height: '100%', overflow: 'hidden' }}>
       <style>{`
         .query-result-tabs {
           flex: 1 1 auto;
@@ -1460,6 +1895,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
           transition: none !important;
         }
       `}</style>
+      <div ref={editorPaneRef}>
       <div style={{ padding: '8px', display: 'flex', gap: '8px', flexShrink: 0, alignItems: 'center' }}>
         <Select 
             style={{ width: 150 }} 
@@ -1512,10 +1948,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
             </Button>
           )}
         </Button.Group>
-        <Button icon={<SaveOutlined />} onClick={() => {
-            saveForm.setFieldsValue({ name: tab.title.replace('Query (', '').replace(')', '') });
-            setIsSaveModalOpen(true);
-        }}>
+        <Button icon={<SaveOutlined />} onClick={handleQuickSave}>
           保存
         </Button>
         
@@ -1557,6 +1990,7 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
         }} 
         title="拖动调整高度"
       />
+      </div>
 
       <div style={{ flex: 1, minHeight: 0, overflow: 'hidden', padding: 0, display: 'flex', flexDirection: 'column' }}>
         {resultSets.length > 0 ? (

frontend/src/components/Sidebar.tsx

@@ -1,5 +1,5 @@
 import React, { useEffect, useState, useMemo, useRef } from 'react';
-import { Tree, message, Dropdown, MenuProps, Input, Button, Modal, Form, Badge, Checkbox, Space, Select, Popover, Tooltip } from 'antd';
+import { Tree, message, Dropdown, MenuProps, Input, Button, Modal, Form, Badge, Checkbox, Space, Select, Popover, Tooltip, Progress } from 'antd';
 	import {
 	  DatabaseOutlined,
 	  TableOutlined,
@@ -32,10 +32,13 @@ import { Tree, message, Dropdown, MenuProps, Input, Button, Modal, Form, Badge,
   CheckOutlined,
   FilterOutlined
 	} from '@ant-design/icons';
-	import { useStore } from '../store';
+import { useStore } from '../store';
+import { buildOverlayWorkbenchTheme } from '../utils/overlayWorkbenchTheme';
 	import { SavedConnection } from '../types';
-	import { DBGetDatabases, DBGetTables, DBQuery, DBShowCreateTable, ExportTable, OpenSQLFile, CreateDatabase, RenameDatabase, DropDatabase, RenameTable, DropTable, DropView, DropFunction, RenameView } from '../../wailsjs/go/app/App';
+	import { DBGetDatabases, DBGetTables, DBQuery, DBShowCreateTable, ExportTable, OpenSQLFile, ExecuteSQLFile, CancelSQLFileExecution, CreateDatabase, RenameDatabase, DropDatabase, RenameTable, DropTable, DropView, DropFunction, RenameView } from '../../wailsjs/go/app/App';
+  import { EventsOn } from '../../wailsjs/runtime/runtime';
   import { normalizeOpacityForPlatform, resolveAppearanceValues } from '../utils/appearance';
+import FindInDatabaseModal from './FindInDatabaseModal';
 
 const { Search } = Input;
 
@@ -88,6 +91,7 @@ const SEARCH_SCOPE_ICON_MAP: Record<SearchScope, React.ReactNode> = {
 const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }> = ({ onEditConnection }) => {
   const connections = useStore(state => state.connections);
   const savedQueries = useStore(state => state.savedQueries);
+  const deleteQuery = useStore(state => state.deleteQuery);
   const addConnection = useStore(state => state.addConnection);
   const addTab = useStore(state => state.addTab);
   const setActiveContext = useStore(state => state.setActiveContext);
@@ -106,6 +110,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   const tableSortPreference = useStore(state => state.tableSortPreference);
   const recordTableAccess = useStore(state => state.recordTableAccess);
   const setTableSortPreference = useStore(state => state.setTableSortPreference);
+  const addSqlLog = useStore(state => state.addSqlLog);
   const darkMode = theme === 'dark';
   const resolvedAppearance = resolveAppearanceValues(appearance);
   const opacity = normalizeOpacityForPlatform(resolvedAppearance.opacity);
@@ -121,41 +126,40 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
       return `rgba(${r}, ${g}, ${b}, ${opacity})`;
   };
   const bgMain = getBg('#141414');
+  const overlayTheme = useMemo(() => buildOverlayWorkbenchTheme(darkMode), [darkMode]);
   const modalPanelStyle = useMemo(() => ({
-      background: darkMode
-          ? 'linear-gradient(180deg, rgba(20,26,38,0.96) 0%, rgba(13,17,26,0.98) 100%)'
-          : 'linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,248,252,0.98) 100%)',
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
-      boxShadow: darkMode ? '0 20px 48px rgba(0,0,0,0.38)' : '0 18px 42px rgba(15,23,42,0.12)',
-      backdropFilter: darkMode ? 'blur(18px)' : 'none',
-  }), [darkMode]);
+      background: overlayTheme.shellBg,
+      border: overlayTheme.shellBorder,
+      boxShadow: overlayTheme.shellShadow,
+      backdropFilter: overlayTheme.shellBackdropFilter,
+  }), [overlayTheme]);
   const modalSectionStyle = useMemo(() => ({
       padding: 14,
       borderRadius: 14,
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
-      background: darkMode ? 'rgba(255,255,255,0.03)' : 'rgba(255,255,255,0.84)',
-  }), [darkMode]);
+      border: overlayTheme.sectionBorder,
+      background: overlayTheme.sectionBg,
+  }), [overlayTheme]);
   const modalScrollSectionStyle = useMemo(() => ({
       maxHeight: 400,
       overflow: 'auto' as const,
-      border: darkMode ? '1px solid rgba(255,255,255,0.08)' : '1px solid rgba(16,24,40,0.08)',
+      border: overlayTheme.sectionBorder,
       borderRadius: 14,
       padding: 12,
-      background: darkMode ? 'rgba(255,255,255,0.03)' : 'rgba(255,255,255,0.8)',
-  }), [darkMode]);
+      background: overlayTheme.sectionBg,
+  }), [overlayTheme]);
   const modalHintTextStyle = useMemo(() => ({
-      color: darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)',
+      color: overlayTheme.mutedText,
       fontSize: 12,
       lineHeight: 1.6,
-  }), [darkMode]);
+  }), [overlayTheme]);
   const renderSidebarModalTitle = (icon: React.ReactNode, title: string, description: string) => (
       <div style={{ display: 'flex', alignItems: 'flex-start', gap: 12 }}>
-          <div style={{ width: 34, height: 34, borderRadius: 12, display: 'grid', placeItems: 'center', background: darkMode ? 'rgba(255,214,102,0.12)' : 'rgba(24,144,255,0.1)', color: darkMode ? '#ffd666' : '#1677ff', flexShrink: 0 }}>
+          <div style={{ width: 34, height: 34, borderRadius: 12, display: 'grid', placeItems: 'center', background: overlayTheme.iconBg, color: overlayTheme.iconColor, flexShrink: 0 }}>
               {icon}
           </div>
           <div style={{ minWidth: 0 }}>
-              <div style={{ fontSize: 16, fontWeight: 700, color: darkMode ? '#f5f7ff' : '#162033' }}>{title}</div>
-              <div style={{ marginTop: 4, color: darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)', fontSize: 12, lineHeight: 1.6 }}>{description}</div>
+              <div style={{ fontSize: 16, fontWeight: 700, color: overlayTheme.titleText }}>{title}</div>
+              <div style={{ marginTop: 4, color: overlayTheme.mutedText, fontSize: 12, lineHeight: 1.6 }}>{description}</div>
           </div>
       </div>
   );
@@ -279,6 +283,9 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   const [batchConnContext, setBatchConnContext] = useState<any>(null);
   const [selectedDbConnection, setSelectedDbConnection] = useState<string>('');
 
+  // Find in Database Modal
+  const [findInDbContext, setFindInDbContext] = useState<{ open: boolean; connectionId: string; dbName: string }>({ open: false, connectionId: '', dbName: '' });
+
   useEffect(() => {
       // Refresh queries for expanded databases
       const findNode = (nodes: TreeNode[], k: React.Key): TreeNode | null => {
@@ -1447,6 +1454,17 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   };
 
   const onDoubleClick = (e: any, node: any) => {
+      if (node.type === 'object-group' && node.dataRef?.groupKey === 'tables') {
+          const { id, dbName, schemaName } = node.dataRef;
+          addTab({
+              id: `table-overview-${id}-${dbName}${schemaName ? `-${schemaName}` : ''}`,
+              title: `表概览 - ${dbName}${schemaName ? ` (${schemaName})` : ''}`,
+              type: 'table-overview' as any,
+              connectionId: id,
+              dbName,
+          });
+          return;
+      }
       if (node.type === 'table') {
           const { tableName, dbName, id } = node.dataRef;
           // 记录表访问
@@ -1479,7 +1497,8 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
               type: 'query',
               connectionId: q.connectionId,
               dbName: q.dbName,
-              query: q.sql
+              query: q.sql,
+              savedQueryId: q.id,
           });
           return;
       } else if (node.type === 'redis-db') {
@@ -1560,7 +1579,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
       hide();
       if (res.success) {
           message.success('导出成功');
-      } else if (res.message !== 'Cancelled') {
+      } else if (res.message !== '已取消') {
           message.error('导出失败: ' + res.message);
       }
   };
@@ -1583,7 +1602,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
           hide();
           if (res.success) {
               message.success('导出成功');
-          } else if (res.message !== 'Cancelled') {
+          } else if (res.message !== '已取消') {
               message.error('导出失败: ' + res.message);
           }
       } catch (e: any) {
@@ -1610,7 +1629,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
           hide();
           if (res.success) {
               message.success('导出成功');
-          } else if (res.message !== 'Cancelled') {
+          } else if (res.message !== '已取消') {
               message.error('导出失败: ' + res.message);
           }
       } catch (e: any) {
@@ -1799,7 +1818,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
               } else {
                   message.success('导出成功');
               }
-          } else if (res.message !== 'Cancelled') {
+          } else if (res.message !== '已取消') {
               message.error('导出失败: ' + res.message);
           }
       } catch (e: any) {
@@ -1808,6 +1827,94 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
       }
   };
 
+  const handleBatchClear = async () => {
+      const selectedObjects = batchTables.filter(t => checkedTableKeys.includes(t.key));
+      if (selectedObjects.length === 0) {
+          message.warning('请至少选择一个对象');
+          return;
+      }
+
+      const { conn, dbName } = batchDbContext;
+      const objectNames = selectedObjects.map(t => t.objectName);
+
+      const ok = await new Promise<boolean>((resolve) => {
+          Modal.confirm({
+              title: '确认清空选中表',
+              content: `清空选中表会永久删除表中所有数据，操作不可逆，是否继续？\r\n\r\n连接: ${conn.name}\n数据库: ${dbName}`,
+              okText: '继续',
+              cancelText: '取消',
+              onOk: () => resolve(true),
+              onCancel: () => resolve(false),
+          });
+      });
+      if (!ok) return;
+
+      setIsBatchModalOpen(false);
+      const hide = message.loading(`正在清空选中表 (${objectNames.length})...`, 0);
+      const startTime = Date.now();
+      try {
+          const app = (window as any).go.app.App;
+          const res = await app.TruncateTables(normalizeConnConfig(conn.config), dbName, objectNames);
+          hide();
+          const duration = Date.now() - startTime;
+          if (res.success) {
+              message.success('清空成功');
+              // 构造 SQL 日志
+              let logSql = `/* Truncate Tables (${objectNames.length} tables) */\n`;
+              if (res.data && res.data.executedSQLs && Array.isArray(res.data.executedSQLs)) {
+                  logSql += res.data.executedSQLs.join(';\n') + ';';
+              } else {
+                  logSql += objectNames.map(name => name).join('; ');
+              }
+              addSqlLog({
+                  id: Date.now().toString(),
+                  timestamp: Date.now(),
+                  sql: logSql,
+                  status: 'success',
+                  duration,
+                  message: res.message,
+                  dbName,
+                  affectedRows: res.data?.count || 0
+              });
+          } else if (res.message !== '已取消') {
+              message.error('清空失败: ' + res.message);
+              // 记录失败的日志
+              let logSql = `/* Truncate Tables (${objectNames.length} tables) - FAILED */\n`;
+              if (res.data && res.data.executedSQLs && Array.isArray(res.data.executedSQLs)) {
+                  logSql += res.data.executedSQLs.join(';\n') + ';';
+              } else {
+                  logSql += objectNames.map(name => name).join('; ');
+              }
+              addSqlLog({
+                  id: Date.now().toString(),
+                  timestamp: Date.now(),
+                  sql: logSql,
+                  status: 'error',
+                  duration,
+                  message: res.message,
+                  dbName
+              });
+          }
+      } catch (e: any) {
+          const duration = Date.now() - startTime;
+          hide();
+          const errMsg = e?.message || String(e);
+          message.error('清空失败: ' + errMsg);
+          // 记录异常的日志
+          let logSql = `/* Truncate Tables (${objectNames.length} tables) - ERROR */\n`;
+          logSql += objectNames.map(name => name).join('; ');
+          addSqlLog({
+              id: Date.now().toString(),
+              timestamp: Date.now(),
+              sql: logSql,
+              status: 'error',
+              duration,
+              message: errMsg,
+              dbName
+          });
+      }
+  };
+
   const handleCheckAll = (checked: boolean) => {
       if (batchSelectionScope === 'all') {
           setCheckedTableKeys(checked ? allBatchObjectKeys : []);
@@ -1939,7 +2046,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
               hide();
               if (res.success) {
                   message.success(`${db.dbName} 导出成功`);
-              } else if (res.message !== 'Cancelled') {
+              } else if (res.message !== '已取消') {
                   message.error(`${db.dbName} 导出失败: ` + res.message);
                   break;
               } else {
@@ -1968,23 +2075,127 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   };
 
   const handleRunSQLFile = async (node: any) => {
-      const res = await (window as any).go.app.App.OpenSQLFile();
+      const res = await OpenSQLFile();
       if (res.success) {
-          const sqlContent = res.data;
+          const data = res.data;
+          // 大文件：后端返回文件路径，走流式执行
+          if (data && typeof data === 'object' && data.isLargeFile) {
+              const connId = node.type === 'connection' ? node.key : node.dataRef?.id;
+              const dbName = node.dataRef?.dbName || '';
+              const conn = connections.find(c => c.id === connId);
+              if (!conn) {
+                  message.error('未找到对应的连接配置');
+                  return;
+              }
+              startSQLFileExecution(conn.config, dbName, data.filePath, data.fileSizeMB);
+              return;
+          }
+          // 小文件：加载到编辑器
+          const sqlContent = data;
           const { dbName, id } = node.dataRef;
           addTab({
               id: `query-${Date.now()}`,
-              title: `Import SQL`,
+              title: `运行外部SQL文件`,
               type: 'query',
               connectionId: node.type === 'connection' ? node.key : node.dataRef.id,
               dbName: dbName,
               query: sqlContent
           });
-      } else if (res.message !== "Cancelled") {
-          message.error("读取文件失败: " + res.message);
+      } else if (res.message !== '已取消') {
+          message.error('读取文件失败: ' + res.message);
       }
   };
 
+  const handleOpenSQLFileFromToolbar = async () => {
+      const ctx = useStore.getState().activeContext;
+      if (!ctx?.connectionId) {
+          message.warning('请先选择一个连接或数据库');
+          return;
+      }
+      const res = await OpenSQLFile();
+      if (res.success) {
+          const data = res.data;
+          // 大文件：后端流式执行
+          if (data && typeof data === 'object' && data.isLargeFile) {
+              const conn = connections.find(c => c.id === ctx.connectionId);
+              if (!conn) {
+                  message.error('未找到对应的连接配置');
+                  return;
+              }
+              startSQLFileExecution(conn.config, ctx.dbName || '', data.filePath, data.fileSizeMB);
+              return;
+          }
+          // 小文件
+          addTab({
+              id: `query-${Date.now()}`,
+              title: `运行外部SQL文件`,
+              type: 'query',
+              connectionId: ctx.connectionId,
+              dbName: ctx.dbName || undefined,
+              query: data
+          });
+      } else if (res.message !== '已取消') {
+          message.error('读取文件失败: ' + res.message);
+      }
+  };
+
+  // SQL 文件流式执行状态
+  const [sqlFileExecState, setSqlFileExecState] = useState<{
+      open: boolean;
+      jobId: string;
+      fileSizeMB: string;
+      status: 'running' | 'done' | 'cancelled' | 'error';
+      executed: number;
+      failed: number;
+      total: number;
+      percent: number;
+      currentSQL: string;
+      resultMessage: string;
+  }>({
+      open: false, jobId: '', fileSizeMB: '', status: 'running',
+      executed: 0, failed: 0, total: 0, percent: 0, currentSQL: '', resultMessage: ''
+  });
+
+  const startSQLFileExecution = (config: any, dbName: string, filePath: string, fileSizeMB: string) => {
+      const jobId = `sqlfile-${Date.now()}`;
+      setSqlFileExecState({
+          open: true, jobId, fileSizeMB, status: 'running',
+          executed: 0, failed: 0, total: 0, percent: 0, currentSQL: '', resultMessage: ''
+      });
+
+      // 监听进度事件
+      const offProgress = EventsOn('sqlfile:progress', (event: any) => {
+          if (!event || event.jobId !== jobId) return;
+          setSqlFileExecState(prev => ({
+              ...prev,
+              status: event.status || prev.status,
+              executed: typeof event.executed === 'number' ? event.executed : prev.executed,
+              failed: typeof event.failed === 'number' ? event.failed : prev.failed,
+              total: typeof event.total === 'number' ? event.total : prev.total,
+              percent: typeof event.percent === 'number' ? Math.min(100, event.percent) : prev.percent,
+              currentSQL: typeof event.currentSQL === 'string' ? event.currentSQL : prev.currentSQL,
+          }));
+      });
+
+      // 异步执行
+      ExecuteSQLFile(config, dbName, filePath, jobId).then(res => {
+          offProgress();
+          setSqlFileExecState(prev => ({
+              ...prev,
+              status: res.success ? 'done' : (prev.status === 'cancelled' ? 'cancelled' : 'error'),
+              percent: 100,
+              resultMessage: res.message || '',
+          }));
+      }).catch(err => {
+          offProgress();
+          setSqlFileExecState(prev => ({
+              ...prev,
+              status: 'error',
+              resultMessage: String(err?.message || err),
+          }));
+      });
+  };
+
   const handleCreateDatabase = async () => {
       try {
           const values = await createDbForm.validateFields();
@@ -1993,7 +2204,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
               ...conn.config, 
               port: Number(conn.config.port),
               password: conn.config.password || "",
-              database: "", // No db selected
+              database: (conn.config.type === 'oracle' || conn.config.type === 'dameng') ? (conn.config.database || "") : "",
               useSSH: conn.config.useSSH || false,
               ssh: conn.config.ssh || { host: "", port: 22, user: "", password: "", keyPath: "" }
           };
@@ -2535,12 +2746,10 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   const searchScopePopoverContent = useMemo(() => {
       const smartSelected = searchScopes.includes('smart');
       const scopedOptions = SEARCH_SCOPE_OPTIONS.filter((option) => option.value !== 'smart');
-      const borderColor = darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(16,24,40,0.08)';
-      const mutedTextColor = darkMode ? 'rgba(255,255,255,0.5)' : 'rgba(16,24,40,0.55)';
-      const titleColor = darkMode ? 'rgba(255,255,255,0.92)' : '#162033';
-      const panelBg = darkMode
-          ? 'linear-gradient(180deg, rgba(17,24,39,0.96) 0%, rgba(10,15,26,0.98) 100%)'
-          : 'linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,248,252,0.98) 100%)';
+      const borderColor = overlayTheme.sectionBorder.replace('1px solid ', '');
+      const mutedTextColor = overlayTheme.mutedText;
+      const titleColor = overlayTheme.titleText;
+      const panelBg = overlayTheme.shellBg;
       const smartBg = smartSelected
           ? (darkMode ? 'linear-gradient(135deg, rgba(255,214,102,0.22) 0%, rgba(255,179,71,0.16) 100%)' : 'linear-gradient(135deg, rgba(255,214,102,0.26) 0%, rgba(255,244,204,0.92) 100%)')
           : (darkMode ? 'rgba(255,255,255,0.03)' : 'rgba(255,255,255,0.72)');
@@ -2591,7 +2800,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
                   </div>
               </label>
 
-              <div style={{ height: 1, background: borderColor, opacity: 0.9 }} />
+              <div style={{ height: 1, background: overlayTheme.divider, opacity: 0.9 }} />
 
               <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', gap: 12 }}>
                   <div style={{ fontSize: 12, fontWeight: 700, letterSpacing: 0.3, color: mutedTextColor, textTransform: 'uppercase' }}>手动范围</div>
@@ -2628,7 +2837,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
               </div>
           </div>
       );
-  }, [darkMode, searchScopes]);
+  }, [darkMode, overlayTheme, searchScopes]);
 
   const parseHostOnlyToken = (value: unknown): string[] => {
       const raw = String(value || '').trim();
@@ -2983,6 +3192,12 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
                    });
                }
              },
+             {
+                 key: 'open-sql-file',
+                 label: '运行外部SQL文件',
+                 icon: <FileAddOutlined />,
+                 onClick: () => handleRunSQLFile(node)
+             },
              { type: 'divider' },
              {
                  key: 'edit',
@@ -3169,7 +3384,7 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
              },
              {
                  key: 'run-sql',
-                 label: '运行 SQL 文件...',
+                 label: '运行外部SQL文件',
                  icon: <FileAddOutlined />,
                  onClick: () => handleRunSQLFile(node)
              }
@@ -3261,13 +3476,15 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
                 label: '新建查询',
                 icon: <ConsoleSqlOutlined />,
                 onClick: () => {
+                   const tableName = String(node.dataRef?.tableName || '').trim();
+                   const queryTemplate = tableName ? `SELECT * FROM ${tableName};` : 'SELECT * FROM ';
                    addTab({
                        id: `query-${Date.now()}`,
                        title: `新建查询`,
                        type: 'query',
                        connectionId: node.dataRef.id,
                        dbName: node.dataRef.dbName,
-                       query: ''
+                       query: queryTemplate
                    });
                 }
             },
@@ -3324,6 +3541,56 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
             }
         ];
     }
+
+    // 已存查询节点的右键菜单
+    if (node.type === 'saved-query') {
+        const q = node.dataRef;
+        return [
+            {
+                key: 'open-query',
+                label: '打开查询',
+                icon: <ConsoleSqlOutlined />,
+                onClick: () => {
+                    addTab({
+                        id: q.id,
+                        title: q.name,
+                        type: 'query',
+                        connectionId: q.connectionId,
+                        dbName: q.dbName,
+                        query: q.sql,
+                        savedQueryId: q.id,
+                    });
+                }
+            },
+            { type: 'divider' },
+            {
+                key: 'delete-query',
+                label: '删除查询',
+                icon: <DeleteOutlined />,
+                danger: true,
+                onClick: () => {
+                    Modal.confirm({
+                        title: '确认删除',
+                        content: `确定要删除已保存的查询 "${q.name}" 吗？此操作不可恢复。`,
+                        okButtonProps: { danger: true },
+                        onOk: () => {
+                            deleteQuery(q.id);
+                            // 从树中移除节点
+                            setTreeData(origin => {
+                                const removeNode = (list: TreeNode[]): TreeNode[] =>
+                                    list
+                                        .filter(n => n.key !== node.key)
+                                        .map(n => n.children ? { ...n, children: removeNode(n.children) } : n);
+                                return removeNode(origin);
+                            });
+                            message.success('查询已删除');
+                        }
+                    });
+                }
+            }
+        ];
+    }
+
     return [];
   };
 
@@ -3536,6 +3803,14 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
             >
                 批量操作库
             </Button>
+            <Button
+                size="small"
+                icon={<FileAddOutlined />}
+                onClick={handleOpenSQLFileFromToolbar}
+                style={{ flex: '1 1 auto' }}
+            >
+                运行外部SQL文件
+            </Button>
         </div>
 
         <div ref={treeContainerRef} style={{ flex: 1, overflow: 'hidden', minHeight: 0 }}>
@@ -3716,6 +3991,15 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
                         取消
                     </Button>
                     <Space size={8} wrap style={{ marginLeft: 'auto' }}>
+                        <Button
+                            key="clear"
+                            danger
+                            icon={<DeleteOutlined />}
+                            onClick={() => handleBatchClear()}
+                            disabled={checkedTableKeys.length === 0}
+                        >
+                            清空表
+                        </Button>
                         <Button
                             key="export-schema"
                             icon={<ExportOutlined />}
@@ -3989,6 +4273,66 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
                 </>
             )}
         </Modal>
+
+        {/* SQL 文件流式执行进度 Modal */}
+        <Modal
+            title="运行外部SQL文件"
+            open={sqlFileExecState.open}
+            centered
+            closable={sqlFileExecState.status !== 'running'}
+            maskClosable={false}
+            footer={sqlFileExecState.status === 'running' ? [
+                <Button key="cancel" danger onClick={() => {
+                    CancelSQLFileExecution(sqlFileExecState.jobId);
+                    setSqlFileExecState(prev => ({ ...prev, status: 'cancelled' }));
+                }}>
+                    取消执行
+                </Button>
+            ] : [
+                <Button key="close" type="primary" onClick={() => setSqlFileExecState(prev => ({ ...prev, open: false }))}>
+                    关闭
+                </Button>
+            ]}
+            onCancel={() => {
+                if (sqlFileExecState.status !== 'running') {
+                    setSqlFileExecState(prev => ({ ...prev, open: false }));
+                }
+            }}
+            styles={{ content: modalPanelStyle, header: { background: 'transparent', borderBottom: 'none' }, body: { paddingTop: 8 }, footer: { background: 'transparent', borderTop: 'none' } }}
+        >
+            <div style={{ marginBottom: 16 }}>
+                <Progress
+                    percent={Math.round(sqlFileExecState.percent)}
+                    status={sqlFileExecState.status === 'error' ? 'exception' : sqlFileExecState.status === 'done' ? 'success' : 'active'}
+                    strokeColor={sqlFileExecState.status === 'cancelled' ? '#faad14' : undefined}
+                />
+            </div>
+            <div style={{ fontSize: 13, lineHeight: '22px', marginBottom: 8 }}>
+                <div>文件大小：<strong>{sqlFileExecState.fileSizeMB} MB</strong></div>
+                <div>状态：<strong>{
+                    sqlFileExecState.status === 'running' ? '执行中...' :
+                    sqlFileExecState.status === 'done' ? '✅ 完成' :
+                    sqlFileExecState.status === 'cancelled' ? '⚠️ 已取消' : '❌ 出错'
+                }</strong></div>
+                <div>已执行：<strong style={{ color: '#52c41a' }}>{sqlFileExecState.executed}</strong> 条 | 失败：<strong style={{ color: sqlFileExecState.failed > 0 ? '#ff4d4f' : undefined }}>{sqlFileExecState.failed}</strong> 条</div>
+            </div>
+            {sqlFileExecState.currentSQL && sqlFileExecState.status === 'running' && (
+                <div style={{ fontSize: 12, color: 'rgba(128,128,128,0.8)', background: 'rgba(128,128,128,0.06)', borderRadius: 6, padding: '6px 10px', marginTop: 8, fontFamily: 'monospace', wordBreak: 'break-all', maxHeight: 60, overflow: 'hidden' }}>
+                    {sqlFileExecState.currentSQL}
+                </div>
+            )}
+            {sqlFileExecState.resultMessage && sqlFileExecState.status !== 'running' && (
+                <div style={{ fontSize: 12, marginTop: 12, maxHeight: 200, overflow: 'auto', whiteSpace: 'pre-wrap', background: 'rgba(128,128,128,0.06)', borderRadius: 6, padding: '8px 12px' }}>
+                    {sqlFileExecState.resultMessage}
+                </div>
+            )}
+        </Modal>
+        <FindInDatabaseModal
+            open={findInDbContext.open}
+            onClose={() => setFindInDbContext({ open: false, connectionId: '', dbName: '' })}
+            connectionId={findInDbContext.connectionId}
+            dbName={findInDbContext.dbName}
+        />
     </div>
   );
 };

frontend/src/components/TabManager.tsx

@@ -14,6 +14,7 @@ import RedisViewer from './RedisViewer';
 import RedisCommandEditor from './RedisCommandEditor';
 import TriggerViewer from './TriggerViewer';
 import DefinitionViewer from './DefinitionViewer';
+import TableOverview from './TableOverview';
 import type { TabData } from '../types';
 
 const detectConnectionEnvLabel = (connectionName: string): string | null => {
@@ -28,7 +29,7 @@ const detectConnectionEnvLabel = (connectionName: string): string | null => {
 };
 
 const buildTabDisplayTitle = (tab: TabData, connectionName: string | undefined): string => {
-  if (tab.type !== 'table' && tab.type !== 'design') return tab.title;
+  if (tab.type !== 'table' && tab.type !== 'design' && tab.type !== 'table-overview') return tab.title;
   if (!connectionName) return tab.title;
   const prefix = detectConnectionEnvLabel(connectionName) || connectionName;
   return `[${prefix}] ${tab.title}`;
@@ -144,12 +145,8 @@ const TabManager: React.FC = () => {
   const items = useMemo(() => tabs.map((tab, index) => {
     const connectionName = connections.find((conn) => conn.id === tab.connectionId)?.name;
     const displayTitle = buildTabDisplayTitle(tab, connectionName);
-    const keepMountedWhenInactive = tab.type === 'query' || tab.type === 'redis-command';
-    const shouldRenderContent = activeTabId === tab.id || keepMountedWhenInactive;
     let content;
-    if (!shouldRenderContent) {
-      content = null;
-    } else if (tab.type === 'query') {
+    if (tab.type === 'query') {
       content = <QueryEditor tab={tab} />;
     } else if (tab.type === 'table') {
       content = <DataViewer tab={tab} />;
@@ -163,6 +160,8 @@ const TabManager: React.FC = () => {
       content = <TriggerViewer tab={tab} />;
     } else if (tab.type === 'view-def' || tab.type === 'routine-def') {
       content = <DefinitionViewer tab={tab} />;
+    } else if (tab.type === 'table-overview') {
+      content = <TableOverview tab={tab} />;
     }
 
     const menuItems: MenuProps['items'] = [
@@ -203,7 +202,7 @@ const TabManager: React.FC = () => {
       key: tab.id,
       children: content,
     };
-  }), [tabs, connections, activeTabId, closeOtherTabs, closeTabsToLeft, closeTabsToRight, closeAllTabs]);
+  }), [tabs, connections, closeOtherTabs, closeTabsToLeft, closeTabsToRight, closeAllTabs]);
 
   return (
     <>
@@ -297,6 +296,7 @@ const TabManager: React.FC = () => {
             <Tabs
                 className="main-tabs"
                 type="editable-card"
+                destroyInactiveTabPane={false}
                 onChange={(newActiveKey) => {
                   if (Date.now() < suppressClickUntilRef.current) return;
                   onChange(newActiveKey);

frontend/src/components/TableDesigner.tsx

@@ -1,5 +1,5 @@
 import React, { useEffect, useState, useContext, useMemo, useRef, useCallback } from 'react';
-import { Table, Tabs, Button, message, Input, Checkbox, Modal, AutoComplete, Tooltip, Select, Empty, Space, Tag } from 'antd';
+import { Table, Tabs, Button, message, Input, Checkbox, Modal, AutoComplete, Tooltip, Select, Empty, Space, Tag, Radio } from 'antd';
 import { ReloadOutlined, SaveOutlined, PlusOutlined, DeleteOutlined, MenuOutlined, FileTextOutlined, EyeOutlined, EditOutlined, ExclamationCircleOutlined, CopyOutlined } from '@ant-design/icons';
 import { DndContext, closestCenter, KeyboardSensor, PointerSensor, useSensor, useSensors, DragOverlay } from '@dnd-kit/core';
 import { arrayMove, SortableContext, sortableKeyboardCoordinates, verticalListSortingStrategy, useSortable } from '@dnd-kit/sortable';
@@ -121,7 +121,7 @@ const ResizableTitle = (props: any) => {
     nextStyle.width = width;
   }
 
-  if (!width) {
+  if (!onResizeStart) {
     return <th {...restProps} style={nextStyle} />;
   }
 
@@ -225,7 +225,7 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
   const [tableCommentDraft, setTableCommentDraft] = useState('');
   const [isTableCommentModalOpen, setIsTableCommentModalOpen] = useState(false);
   const [tableCommentSaving, setTableCommentSaving] = useState(false);
-  const [selectedIndex, setSelectedIndex] = useState<IndexDisplayRow | null>(null);
+  const [selectedIndexKeys, setSelectedIndexKeys] = useState<string[]>([]);
   const [isIndexModalOpen, setIsIndexModalOpen] = useState(false);
   const [indexModalMode, setIndexModalMode] = useState<'create' | 'edit'>('create');
   const [indexSaving, setIndexSaving] = useState(false);
@@ -270,6 +270,7 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
 
   const [tableHeight, setTableHeight] = useState(500);
   const containerRef = useRef<HTMLDivElement>(null);
+  const shellRef = useRef<HTMLDivElement>(null);
   const pendingFocusColumnKeyRef = useRef<string | null>(null);
   const focusHighlightTimerRef = useRef<number | null>(null);
   const [focusColumnKey, setFocusColumnKey] = useState('');
@@ -329,7 +330,8 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
 
   // --- Resizable Columns State ---
   const [tableColumns, setTableColumns] = useState<any[]>([]);
-  const resizeDragRef = useRef<{ startX: number; startWidth: number; index: number; containerLeft: number } | null>(null);
+  const [indexColumns, setIndexColumns] = useState<any[]>([]);
+  const resizeDragRef = useRef<{ startX: number; startWidth: number; index: number; containerLeft: number; setter: React.Dispatch<React.SetStateAction<any[]>> } | null>(null);
   const resizeRafRef = useRef<number | null>(null);
   const latestResizeXRef = useRef<number | null>(null);
   const ghostRef = useRef<HTMLDivElement>(null);
@@ -413,11 +415,6 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
   // Initial Columns Definition
   useEffect(() => {
       const initialCols = [
-          ...(readOnly ? [] : [{
-              key: 'sort',
-              width: 40,
-              render: () => <MenuOutlined style={{ cursor: 'grab', color: '#999' }} />,
-          }]),
           { 
               title: '名', 
               dataIndex: 'name', 
@@ -548,17 +545,17 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
     document.body.style.userSelect = '';
   }, []);
 
-  const handleResizeStart = useCallback((index: number) => (e: React.MouseEvent) => {
+  const createResizeStartHandler = useCallback((columns: any[], setter: React.Dispatch<React.SetStateAction<any[]>>) => (index: number) => (e: React.MouseEvent) => {
     e.preventDefault();
     e.stopPropagation();
 
     const startX = e.clientX;
-    const currentWidth = Number(tableColumns[index]?.width || 200);
-    const containerLeft = containerRef.current?.getBoundingClientRect().left ?? 0;
-    resizeDragRef.current = { startX, startWidth: currentWidth, index, containerLeft };
+    const currentWidth = Number(columns[index]?.width || 200);
+    const containerLeft = shellRef.current?.getBoundingClientRect().left ?? 0;
+    resizeDragRef.current = { startX, startWidth: currentWidth, index, containerLeft, setter };
     latestResizeXRef.current = startX;
 
-    if (ghostRef.current && containerRef.current) {
+    if (ghostRef.current && shellRef.current) {
       const relativeLeft = startX - containerLeft;
       ghostRef.current.style.transform = `translateX(${relativeLeft}px)`;
       ghostRef.current.style.display = 'block';
@@ -575,10 +572,10 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
 
     const onUp = (event: MouseEvent) => {
       if (resizeDragRef.current) {
-        const { startX: dragStartX, startWidth, index: dragIndex } = resizeDragRef.current;
+        const { startX: dragStartX, startWidth, index: dragIndex, setter: dragSetter } = resizeDragRef.current;
         const deltaX = event.clientX - dragStartX;
         const newWidth = Math.max(50, startWidth + deltaX);
-        setTableColumns((prevColumns) => {
+        dragSetter((prevColumns) => {
           if (!prevColumns[dragIndex]) return prevColumns;
           const nextColumns = [...prevColumns];
           nextColumns[dragIndex] = {
@@ -598,7 +595,10 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
     document.addEventListener('mouseup', onUp);
     document.body.style.cursor = 'col-resize';
     document.body.style.userSelect = 'none';
-  }, [cleanupResizeState, detachResizeListeners, flushResizeGhost, tableColumns]);
+  }, [cleanupResizeState, detachResizeListeners, flushResizeGhost]);
+
+  const handleResizeStart = useMemo(() => createResizeStartHandler(tableColumns, setTableColumns), [createResizeStartHandler, tableColumns]);
+  const handleIndexResizeStart = useMemo(() => createResizeStartHandler(indexColumns, setIndexColumns), [createResizeStartHandler, indexColumns]);
 
   useEffect(() => {
     return () => {
@@ -1083,6 +1083,11 @@ ${selectedTrigger.statement}`;
           });
   }, [indexes]);
 
+  const selectedIndex = useMemo(() => {
+      if (selectedIndexKeys.length === 0) return null;
+      return groupedIndexes.find(idx => selectedIndexKeys.includes(idx.key)) || null;
+  }, [selectedIndexKeys, groupedIndexes]);
+
   const groupedIndexFieldCount = useMemo(
       () => groupedIndexes.reduce((total, row) => total + row.columnNames.length, 0),
       [groupedIndexes]
@@ -1161,11 +1166,12 @@ ${selectedTrigger.statement}`;
   );
 
   useEffect(() => {
-      if (!selectedIndex) return;
-      if (!groupedIndexes.some(idx => idx.key === selectedIndex.key)) {
-          setSelectedIndex(null);
+      if (selectedIndexKeys.length === 0) return;
+      const validKeys = selectedIndexKeys.filter(key => groupedIndexes.some(idx => idx.key === key));
+      if (validKeys.length !== selectedIndexKeys.length) {
+          setSelectedIndexKeys(validKeys);
       }
-  }, [groupedIndexes, selectedIndex]);
+  }, [groupedIndexes, selectedIndexKeys]);
 
   useEffect(() => {
       if (!selectedForeignKey) return;
@@ -1397,14 +1403,23 @@ ${selectedTrigger.statement}`;
           ssh: conn.config.ssh || { host: "", port: 22, user: "", password: "", keyPath: "" }
       };
       try {
-          const res = await DBQuery(config as any, tab.dbName || '', sql);
-          if (res.success) {
-              message.success(successMessage);
-              await fetchData();
-              return true;
+          // 多条 DDL 语句（如 DROP INDEX + CREATE INDEX）需要逐条执行，
+          // 因为 Go MySQL 驱动默认不支持多语句 Exec。
+          const statements = sql.split(/;\s*\n/).map(s => s.trim()).filter(Boolean);
+          for (let i = 0; i < statements.length; i++) {
+              let stmt = statements[i];
+              if (!stmt.endsWith(';')) stmt += ';';
+              const res = await DBQuery(config as any, tab.dbName || '', stmt);
+              if (!res.success) {
+                  const prefix = statements.length > 1 ? `第 ${i + 1}/${statements.length} 条语句执行失败: ` : '执行失败: ';
+                  message.error(prefix + res.message);
+                  if (i > 0) await fetchData();
+                  return false;
+              }
           }
-          message.error('执行失败: ' + res.message);
-          return false;
+          message.success(successMessage);
+          await fetchData();
+          return true;
       } catch (e: any) {
           message.error('执行失败: ' + (e?.message || String(e)));
           return false;
@@ -2000,13 +2015,163 @@ END;`;
   };
 
   // Merge columns with resize handler
-  const resizableColumns = tableColumns.map((col, index) => ({
+  const resizableColumns = useMemo(() => tableColumns.map((col, index) => ({
     ...col,
     onHeaderCell: (column: any) => ({
       width: column.width,
       onResizeStart: handleResizeStart(index),
     }),
-  }));
+  })), [tableColumns]);
+
+  // 字段表 Checkbox 选择列（不参与 resize，支持全选）
+  const allColumnKeys = useMemo(() => columns.map(c => c._key), [columns]);
+  const isAllColumnsSelected = allColumnKeys.length > 0 && selectedColumnRowKeys.length === allColumnKeys.length;
+  const isColumnsIndeterminate = selectedColumnRowKeys.length > 0 && selectedColumnRowKeys.length < allColumnKeys.length;
+
+  const columnSelectCol = useMemo(() => ({
+      title: () => (
+          <Checkbox
+              checked={isAllColumnsSelected}
+              indeterminate={isColumnsIndeterminate}
+              onChange={(e: any) => setSelectedColumnRowKeys(e.target.checked ? allColumnKeys : [])}
+              style={{ margin: 0 }}
+          />
+      ),
+      dataIndex: '_select',
+      key: '_select',
+      width: 48,
+      render: (_: any, record: any) => (
+          <Checkbox
+              checked={selectedColumnRowKeys.includes(record._key)}
+              onChange={(e: any) => {
+                  e.stopPropagation();
+                  setSelectedColumnRowKeys((prev: string[]) =>
+                      e.target.checked
+                          ? [...prev, record._key]
+                          : prev.filter((k: string) => k !== record._key)
+                  );
+              }}
+              style={{ margin: 0 }}
+          />
+      ),
+  }), [selectedColumnRowKeys, allColumnKeys, isAllColumnsSelected, isColumnsIndeterminate]);
+
+  // sort 拖拽列（不参与 resize）
+  const sortColumn = useMemo(() => ({
+      key: 'sort',
+      width: 40,
+      render: () => <MenuOutlined style={{ cursor: 'grab', color: '#999' }} />,
+  }), []);
+
+  const columnsWithSelect = useMemo(() =>
+      readOnly
+          ? resizableColumns
+          : [columnSelectCol, sortColumn, ...resizableColumns],
+      [readOnly, columnSelectCol, sortColumn, resizableColumns]
+  );
+
+  // --- Index Columns Init ---
+  useEffect(() => {
+      setIndexColumns([
+          {
+              title: '索引名',
+              dataIndex: 'name',
+              key: 'name',
+              width: 240,
+              render: (text: string) => (
+                  <Tooltip title={text}>
+                      <span style={{ display: 'inline-block', maxWidth: '100%', overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>
+                          {text}
+                      </span>
+                  </Tooltip>
+              ),
+          },
+          {
+              title: '字段',
+              dataIndex: 'columnNames',
+              key: 'columnNames',
+              width: 320,
+              render: (columnNames: string[]) => {
+                  if (!columnNames || columnNames.length === 0) {
+                      return '-';
+                  }
+                  return (
+                      <div style={{ display: 'flex', flexWrap: 'wrap', gap: 6 }}>
+                          {columnNames.map((columnName: string, idx: number) => (
+                              <Tag key={`${columnName}-${idx}`}>
+                                  {columnName}
+                              </Tag>
+                          ))}
+                      </div>
+                  );
+              }
+          },
+          {
+              title: '索引类型',
+              dataIndex: 'indexType',
+              key: 'indexType',
+              width: 140,
+              render: (text: string) => text || '-',
+          },
+          {
+              title: '唯一性',
+              dataIndex: 'nonUnique',
+              key: 'nonUnique',
+              width: 110,
+              render: (v: number) => (
+                  <Tag color={v === 0 ? 'gold' : 'default'}>
+                      {v === 0 ? '唯一' : '普通'}
+                  </Tag>
+              ),
+          },
+      ]);
+  }, []);
+
+  // Checkbox 选择列（不参与 resize，支持全选）
+  const allIndexKeys = groupedIndexes.map(idx => idx.key);
+  const isAllSelected = allIndexKeys.length > 0 && selectedIndexKeys.length === allIndexKeys.length;
+  const isIndeterminate = selectedIndexKeys.length > 0 && selectedIndexKeys.length < allIndexKeys.length;
+
+  const selectColumn = {
+      title: () => (
+          <Checkbox
+              checked={isAllSelected}
+              indeterminate={isIndeterminate}
+              onChange={(e) => {
+                  setSelectedIndexKeys(e.target.checked ? allIndexKeys : []);
+              }}
+              style={{ margin: 0 }}
+          />
+      ),
+      dataIndex: '_select',
+      key: '_select',
+      width: 48,
+      render: (_: any, record: any) => (
+          <Checkbox
+              checked={selectedIndexKeys.includes(record.key)}
+              onChange={(e) => {
+                  e.stopPropagation();
+                  setSelectedIndexKeys(prev =>
+                      e.target.checked
+                          ? [...prev, record.key]
+                          : prev.filter(k => k !== record.key)
+                  );
+              }}
+              style={{ margin: 0 }}
+          />
+      ),
+  };
+
+  const resizableIndexColumns = [
+      selectColumn,
+      ...indexColumns.map((col, index) => ({
+        ...col,
+        onHeaderCell: (column: any) => ({
+          width: column.width,
+          onResizeStart: handleIndexResizeStart(index),
+        }),
+      })),
+  ];
 
   const columnsTabContent = (
       <div
@@ -2030,7 +2195,7 @@ END;`;
         {readOnly ? (
         <Table 
             dataSource={columns} 
-            columns={resizableColumns} 
+            columns={columnsWithSelect} 
             rowKey="_key" 
             rowClassName={(record: EditableColumn) => record._key === focusColumnKey ? 'table-designer-focus-row' : ''}
             size="small" 
@@ -2049,11 +2214,7 @@ END;`;
         <SortableContext items={columns.map(c => c._key)} strategy={verticalListSortingStrategy}>
             <Table 
                 dataSource={columns} 
-                columns={resizableColumns} 
-                rowSelection={{
-                    selectedRowKeys: selectedColumnRowKeys,
-                    onChange: (nextSelectedRowKeys) => setSelectedColumnRowKeys(nextSelectedRowKeys as string[]),
-                }}
+                columns={columnsWithSelect} 
                 rowKey="_key" 
                 rowClassName={(record: EditableColumn) => record._key === focusColumnKey ? 'table-designer-focus-row' : ''}
                 size="small" 
@@ -2069,6 +2230,86 @@ END;`;
         </SortableContext>
       </DndContext>
   )}
+  </div>
+  );
+
+  return (
+    <div ref={shellRef} className="table-designer-shell" style={{ display: 'flex', flexDirection: 'column', height: '100%', minHeight: 0, padding: '6px 0', position: 'relative' }}>
+        <style>{`
+            .table-designer-shell .ant-table,
+            .table-designer-shell .ant-table-wrapper,
+            .table-designer-shell .ant-table-container {
+                background: transparent !important;
+            }
+            .table-designer-shell .ant-table-wrapper {
+                border: none !important;
+                overflow: hidden !important;
+            }
+            .table-designer-shell .ant-table-container {
+                border: none !important;
+            }
+            .table-designer-shell .ant-table-thead > tr > th {
+                background: transparent !important;
+                border-bottom: 1px solid ${darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.06)'} !important;
+                border-inline-end: 1px solid transparent !important;
+            }
+            .table-designer-shell .ant-table-tbody > tr > td,
+            .table-designer-shell .ant-table-tbody .ant-table-row > .ant-table-cell {
+                background: transparent !important;
+                border-bottom: 1px solid ${darkMode ? 'rgba(255,255,255,0.05)' : 'rgba(0,0,0,0.05)'} !important;
+                border-inline-end: 1px solid transparent !important;
+            }
+            .table-designer-shell .ant-table-tbody td .ant-input {
+                padding-left: 0 !important;
+                padding-right: 0 !important;
+            }
+            .table-designer-shell .ant-table-tbody td .ant-select .ant-select-selector {
+                padding-left: 0 !important;
+            }
+            .table-designer-shell .ant-table-thead > tr > th::before {
+                display: none !important;
+            }
+            .table-designer-shell .ant-table-thead > tr > th {
+                cursor: default !important;
+                user-select: none !important;
+                -webkit-user-select: none !important;
+            }
+            .table-designer-shell .ant-table-tbody > tr:hover > td,
+            .table-designer-shell .ant-table-tbody .ant-table-row:hover > .ant-table-cell {
+                background: ${darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.02)'} !important;
+            }
+            .table-designer-shell .ant-tabs-nav {
+                margin-bottom: 8px !important;
+            }
+            .table-designer-shell .ant-tabs-nav::before {
+                border-bottom-color: ${darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.08)'} !important;
+            }
+            .table-designer-shell .ant-tabs-ink-bar {
+                will-change: transform;
+                transition: width 0.15s ease, left 0.15s ease, transform 0.15s ease !important;
+            }
+            .table-designer-shell .ant-tabs-tab {
+                transition: color 0.15s ease !important;
+            }
+            .table-designer-shell .ant-tabs-content-holder,
+            .table-designer-shell .ant-tabs-content,
+            .table-designer-shell .ant-tabs-tabpane {
+                height: 100%;
+            }
+            .table-designer-shell .react-resizable-handle {
+                position: absolute !important;
+                right: 0 !important;
+                top: 0 !important;
+                bottom: 0 !important;
+                width: 10px !important;
+                height: auto !important;
+                background-position: top right !important;
+                cursor: col-resize !important;
+                z-index: 10;
+                touch-action: none;
+            }
+
+        `}</style>
         <div
           ref={ghostRef}
           style={{
@@ -2084,52 +2325,6 @@ END;`;
             willChange: 'transform',
           }}
         />
-  </div>
-  );
-
-  return (
-    <div className="table-designer-shell" style={{ display: 'flex', flexDirection: 'column', height: '100%', minHeight: 0, padding: '6px 0' }}>
-        <style>{`
-            .table-designer-shell .ant-table,
-            .table-designer-shell .ant-table-wrapper,
-            .table-designer-shell .ant-table-container {
-                background: transparent !important;
-            }
-            .table-designer-shell .ant-table-wrapper,
-            .table-designer-shell .ant-table-container {
-                border: none !important;
-                overflow: hidden !important;
-            }
-            .table-designer-shell .ant-table-thead > tr > th {
-                background: transparent !important;
-                border-bottom: 1px solid ${darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.06)'} !important;
-                border-inline-end: 1px solid transparent !important;
-            }
-            .table-designer-shell .ant-table-tbody > tr > td,
-            .table-designer-shell .ant-table-tbody .ant-table-row > .ant-table-cell {
-                background: transparent !important;
-                border-bottom: 1px solid ${darkMode ? 'rgba(255,255,255,0.05)' : 'rgba(0,0,0,0.05)'} !important;
-                border-inline-end: 1px solid transparent !important;
-            }
-            .table-designer-shell .ant-table-thead > tr > th::before {
-                display: none !important;
-            }
-            .table-designer-shell .ant-table-tbody > tr:hover > td,
-            .table-designer-shell .ant-table-tbody .ant-table-row:hover > .ant-table-cell {
-                background: ${darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.02)'} !important;
-            }
-            .table-designer-shell .ant-tabs-nav {
-                margin-bottom: 8px !important;
-            }
-            .table-designer-shell .ant-tabs-nav::before {
-                border-bottom-color: ${darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.08)'} !important;
-            }
-            .table-designer-shell .ant-tabs-content-holder,
-            .table-designer-shell .ant-tabs-content,
-            .table-designer-shell .ant-tabs-tabpane {
-                height: 100%;
-            }
-        `}</style>
         <div
             style={{
                 padding: '10px 12px 8px 12px',
@@ -2202,7 +2397,7 @@ END;`;
         </div>
         <Tabs 
             activeKey={activeKey}
-            onChange={setActiveKey}
+            onChange={(key) => React.startTransition(() => setActiveKey(key))}
             style={{
                 flex: 1,
                 minHeight: 0,
@@ -2225,20 +2420,20 @@ END;`;
                         key: 'indexes',
                         label: '索引',
                         children: (
-                            <div style={{ display: 'flex', flexDirection: 'column', gap: 8 }}>
+                            <div className="index-table-wrap" style={{ display: 'flex', flexDirection: 'column', gap: 8 }}>
                                 {!readOnly && (
                                     <div style={{ display: 'flex', gap: 8 }}>
                                         <Button size="small" icon={<PlusOutlined />} disabled={!supportsIndexSchemaOps()} onClick={openCreateIndexModal}>新增</Button>
-                                        <Button size="small" icon={<EditOutlined />} disabled={!supportsIndexSchemaOps() || !selectedIndex} onClick={openEditIndexModal}>修改</Button>
-                                        <Button size="small" icon={<DeleteOutlined />} danger disabled={!supportsIndexSchemaOps() || !selectedIndex} onClick={handleDeleteIndex}>删除</Button>
+                                        <Button size="small" icon={<EditOutlined />} disabled={!supportsIndexSchemaOps() || selectedIndexKeys.length !== 1} onClick={openEditIndexModal}>修改</Button>
+                                        <Button size="small" icon={<DeleteOutlined />} danger disabled={!supportsIndexSchemaOps() || selectedIndexKeys.length === 0} onClick={handleDeleteIndex}>删除</Button>
                                         {!supportsIndexSchemaOps() && (
                                             <span style={{ marginLeft: 'auto', color: '#faad14', fontSize: 12, alignSelf: 'center' }}>
                                                 当前数据库暂不支持索引编辑，仅支持查看
                                             </span>
                                         )}
-                                        {supportsIndexSchemaOps() && selectedIndex && (
+                                        {supportsIndexSchemaOps() && selectedIndexKeys.length > 0 && (
                                             <span style={{ marginLeft: 'auto', color: '#888', fontSize: 12, alignSelf: 'center' }}>
-                                                已选择：{selectedIndex.name}
+                                                已选择：{selectedIndexKeys.length} 个索引
                                             </span>
                                         )}
                                     </div>
@@ -2248,75 +2443,22 @@ END;`;
                                 </div>
                                 <Table
                                     dataSource={groupedIndexes}
-                                    columns={[
-                                        {
-                                            title: '索引名',
-                                            dataIndex: 'name',
-                                            key: 'name',
-                                            width: 240,
-                                            render: (text: string) => (
-                                                <Tooltip title={text}>
-                                                    <span style={{ display: 'inline-block', maxWidth: '100%', overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>
-                                                        {text}
-                                                    </span>
-                                                </Tooltip>
-                                            ),
-                                        },
-                                        {
-                                            title: '字段',
-                                            dataIndex: 'columnNames',
-                                            key: 'columnNames',
-                                            render: (columnNames: string[]) => {
-                                                if (!columnNames || columnNames.length === 0) {
-                                                    return '-';
-                                                }
-                                                return (
-                                                    <div style={{ display: 'flex', flexWrap: 'wrap', gap: 6 }}>
-                                                        {columnNames.map((columnName, idx) => (
-                                                            <Tag key={`${columnName}-${idx}`}>
-                                                                {columnName}
-                                                            </Tag>
-                                                        ))}
-                                                    </div>
-                                                );
-                                            }
-                                        },
-                                        {
-                                            title: '索引类型',
-                                            dataIndex: 'indexType',
-                                            key: 'indexType',
-                                            width: 140,
-                                            render: (text: string) => text || '-',
-                                        },
-                                        {
-                                            title: '唯一性',
-                                            dataIndex: 'nonUnique',
-                                            key: 'nonUnique',
-                                            width: 110,
-                                            render: (v: number) => (
-                                                <Tag color={v === 0 ? 'gold' : 'default'}>
-                                                    {v === 0 ? '唯一' : '普通'}
-                                                </Tag>
-                                            ),
-                                        },
-                                    ]}
+                                    columns={resizableIndexColumns}
                                     rowKey="key"
                                     size="small"
                                     pagination={false}
                                     loading={loading}
                                     scroll={{ x: 960, y: tableHeight }}
-                                    rowSelection={{
-                                        type: 'radio',
-                                        selectedRowKeys: selectedIndex ? [selectedIndex.key] : [],
-                                        onChange: (_, selectedRows) => setSelectedIndex((selectedRows[0] as IndexDisplayRow) || null),
+                                    components={{
+                                        header: { cell: ResizableTitle },
                                     }}
                                     onRow={(record) => ({
                                         onClick: () => {
-                                            if (selectedIndex?.key === record.key) {
-                                                setSelectedIndex(null);
-                                            } else {
-                                                setSelectedIndex(record);
-                                            }
+                                            setSelectedIndexKeys(prev =>
+                                                prev.includes(record.key)
+                                                    ? prev.filter(k => k !== record.key)
+                                                    : [...prev, record.key]
+                                            );
                                         },
                                         style: { cursor: 'pointer' }
                                     })}
@@ -2676,7 +2818,7 @@ END;`;
             cancelText="取消"
         >
             <div style={{ maxHeight: '400px', overflow: 'auto' }}>
-                <pre style={{ background: '#f5f5f5', padding: '10px', borderRadius: '4px', border: '1px solid #eee', whiteSpace: 'pre-wrap' }}>
+                <pre style={{ background: darkMode ? '#1e1e1e' : '#f5f5f5', color: darkMode ? '#d4d4d4' : 'inherit', padding: '10px', borderRadius: '4px', border: darkMode ? '1px solid #333' : '1px solid #eee', whiteSpace: 'pre-wrap' }}>
                     {previewSql}
                 </pre>
             </div>

frontend/src/components/TableOverview.tsx

@@ -0,0 +1,454 @@
+import React, { useState, useEffect, useMemo, useCallback } from 'react';
+import { Input, Spin, Empty, Dropdown, message, Tooltip, Modal } from 'antd';
+import { TableOutlined, SearchOutlined, ReloadOutlined, SortAscendingOutlined, DatabaseOutlined, ConsoleSqlOutlined, EditOutlined, CopyOutlined, SaveOutlined, DeleteOutlined, ExportOutlined } from '@ant-design/icons';
+import { useStore } from '../store';
+import { DBQuery, DBShowCreateTable, ExportTable, DropTable, RenameTable } from '../../wailsjs/go/app/App';
+import type { TabData } from '../types';
+
+interface TableOverviewProps {
+    tab: TabData;
+}
+
+interface TableStatRow {
+    name: string;
+    comment: string;
+    rows: number;
+    dataSize: number;
+    indexSize: number;
+    engine: string;
+    createTime: string;
+    updateTime: string;
+}
+
+type SortField = 'name' | 'rows' | 'dataSize';
+type SortOrder = 'asc' | 'desc';
+
+const formatSize = (bytes: number): string => {
+    if (!bytes || bytes <= 0) return '—';
+    if (bytes < 1024) return `${bytes} B`;
+    if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
+    if (bytes < 1024 * 1024 * 1024) return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
+    return `${(bytes / (1024 * 1024 * 1024)).toFixed(2)} GB`;
+};
+
+const formatRows = (count: number): string => {
+    if (count === undefined || count === null || count < 0) return '—';
+    if (count >= 1_000_000) return `${(count / 1_000_000).toFixed(1)}M`;
+    if (count >= 1_000) return `${(count / 1_000).toFixed(1)}K`;
+    return String(count);
+};
+
+const getMetadataDialect = (connType: string, driver?: string): string => {
+    const type = (connType || '').trim().toLowerCase();
+    if (type === 'custom') {
+        const d = (driver || '').trim().toLowerCase();
+        if (d === 'diros' || d === 'doris') return 'mysql';
+        return d;
+    }
+    if (type === 'mariadb' || type === 'diros' || type === 'sphinx') return 'mysql';
+    if (type === 'dameng') return 'dm';
+    return type;
+};
+
+const buildTableStatusSQL = (dialect: string, dbName: string, schemaName?: string): string => {
+    const escapeLiteral = (s: string) => s.replace(/'/g, "''");
+    switch (dialect) {
+        case 'mysql':
+            return `SHOW TABLE STATUS FROM \`${dbName.replace(/`/g, '``')}\``;
+        case 'postgres':
+        case 'kingbase':
+        case 'vastbase': {
+            const schema = schemaName || 'public';
+            return `
+SELECT
+    c.relname AS table_name,
+    obj_description(c.oid, 'pg_class') AS table_comment,
+    c.reltuples::bigint AS table_rows,
+    pg_total_relation_size(c.oid) AS data_length,
+    pg_indexes_size(c.oid) AS index_length
+FROM pg_class c
+JOIN pg_namespace n ON n.oid = c.relnamespace
+WHERE c.relkind = 'r'
+  AND n.nspname = '${escapeLiteral(schema)}'
+ORDER BY c.relname`;
+        }
+        case 'sqlserver': {
+            const safeDB = `[${dbName.replace(/]/g, ']]')}]`;
+            return `
+SELECT
+    t.name AS table_name,
+    ep.value AS table_comment,
+    SUM(p.rows) AS table_rows,
+    SUM(a.total_pages) * 8 * 1024 AS data_length,
+    SUM(a.used_pages) * 8 * 1024 AS index_length
+FROM ${safeDB}.sys.tables t
+LEFT JOIN ${safeDB}.sys.extended_properties ep ON ep.major_id = t.object_id AND ep.minor_id = 0 AND ep.name = 'MS_Description'
+LEFT JOIN ${safeDB}.sys.partitions p ON t.object_id = p.object_id AND p.index_id IN (0, 1)
+LEFT JOIN ${safeDB}.sys.allocation_units a ON p.partition_id = a.container_id
+WHERE t.type = 'U'
+GROUP BY t.name, ep.value
+ORDER BY t.name`;
+        }
+        case 'clickhouse':
+            return `SELECT name AS table_name, comment AS table_comment, total_rows AS table_rows, total_bytes AS data_length, 0 AS index_length FROM system.tables WHERE database = '${escapeLiteral(dbName)}' AND engine NOT IN ('View', 'MaterializedView') ORDER BY name`;
+        case 'dm':
+        case 'oracle': {
+            const owner = (schemaName || dbName).toUpperCase();
+            return `SELECT table_name, comments AS table_comment, num_rows AS table_rows, 0 AS data_length, 0 AS index_length FROM all_tab_comments JOIN all_tables USING (table_name, owner) WHERE owner = '${escapeLiteral(owner)}' ORDER BY table_name`;
+        }
+        default:
+            return `SELECT table_name, '' AS table_comment, 0 AS table_rows, 0 AS data_length, 0 AS index_length FROM information_schema.tables WHERE table_schema = '${escapeLiteral(dbName)}' AND table_type = 'BASE TABLE' ORDER BY table_name`;
+    }
+};
+
+const parseTableStats = (dialect: string, rows: Record<string, any>[]): TableStatRow[] => {
+    return rows.map((row) => {
+        const get = (keys: string[]): any => {
+            for (const k of keys) {
+                for (const rk of Object.keys(row)) {
+                    if (rk.toLowerCase() === k.toLowerCase() && row[rk] !== null && row[rk] !== undefined) return row[rk];
+                }
+            }
+            return undefined;
+        };
+        const strVal = (keys: string[]) => String(get(keys) ?? '').trim();
+        const numVal = (keys: string[]) => {
+            const v = get(keys);
+            if (v === null || v === undefined || v === '') return 0;
+            const n = Number(v);
+            return isNaN(n) ? 0 : Math.max(0, Math.round(n));
+        };
+
+        return {
+            name: strVal(['Name', 'table_name', 'tablename', 'TABLE_NAME']),
+            comment: strVal(['Comment', 'table_comment', 'TABLE_COMMENT', 'comments']),
+            rows: numVal(['Rows', 'table_rows', 'TABLE_ROWS', 'num_rows', 'reltuples', 'total_rows']),
+            dataSize: numVal(['Data_length', 'data_length', 'DATA_LENGTH', 'total_bytes']),
+            indexSize: numVal(['Index_length', 'index_length', 'INDEX_LENGTH']),
+            engine: strVal(['Engine', 'engine']),
+            createTime: strVal(['Create_time', 'create_time']),
+            updateTime: strVal(['Update_time', 'update_time']),
+        };
+    }).filter(t => t.name);
+};
+
+const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
+    const connections = useStore(state => state.connections);
+    const theme = useStore(state => state.theme);
+    const addTab = useStore(state => state.addTab);
+    const darkMode = theme === 'dark';
+
+    const [tables, setTables] = useState<TableStatRow[]>([]);
+    const [loading, setLoading] = useState(true);
+    const [searchText, setSearchText] = useState('');
+    const [sortField, setSortField] = useState<SortField>('name');
+    const [sortOrder, setSortOrder] = useState<SortOrder>('asc');
+
+    const connection = useMemo(() => connections.find(c => c.id === tab.connectionId), [connections, tab.connectionId]);
+
+    const loadData = useCallback(async () => {
+        if (!connection) return;
+        setLoading(true);
+        try {
+            const config = {
+                ...connection.config,
+                port: Number(connection.config.port),
+                password: connection.config.password || '',
+                database: connection.config.database || '',
+                useSSH: connection.config.useSSH || false,
+                ssh: connection.config.ssh || { host: '', port: 22, user: '', password: '', keyPath: '' },
+            };
+            const dialect = getMetadataDialect(connection.config.type, (connection.config as any)?.driver);
+            const sql = buildTableStatusSQL(dialect, tab.dbName || '', (tab as any).schemaName);
+            const res = await DBQuery(config as any, tab.dbName || '', sql);
+            if (res.success && Array.isArray(res.data)) {
+                setTables(parseTableStats(dialect, res.data));
+            } else {
+                message.error('获取表信息失败: ' + (res.message || '未知错误'));
+            }
+        } catch (e: any) {
+            message.error('获取表信息失败: ' + (e?.message || String(e)));
+        } finally {
+            setLoading(false);
+        }
+    }, [connection, tab.dbName]);
+
+    useEffect(() => { loadData(); }, [loadData]);
+
+    const sortedFiltered = useMemo(() => {
+        let list = [...tables];
+        if (searchText.trim()) {
+            const kw = searchText.trim().toLowerCase();
+            list = list.filter(t => t.name.toLowerCase().includes(kw) || t.comment.toLowerCase().includes(kw));
+        }
+        list.sort((a, b) => {
+            let cmp = 0;
+            if (sortField === 'name') cmp = a.name.toLowerCase().localeCompare(b.name.toLowerCase());
+            else if (sortField === 'rows') cmp = a.rows - b.rows;
+            else if (sortField === 'dataSize') cmp = a.dataSize - b.dataSize;
+            return sortOrder === 'asc' ? cmp : -cmp;
+        });
+        return list;
+    }, [tables, searchText, sortField, sortOrder]);
+
+    const openTable = useCallback((tableName: string) => {
+        if (!connection) return;
+        addTab({
+            id: `${connection.id}-${tab.dbName}-${tableName}`,
+            title: tableName,
+            type: 'table',
+            connectionId: connection.id,
+            dbName: tab.dbName,
+            tableName,
+        });
+    }, [connection, tab.dbName, addTab]);
+
+    const openDesign = useCallback((tableName: string) => {
+        if (!connection) return;
+        addTab({
+            id: `design-${connection.id}-${tab.dbName}-${tableName}`,
+            title: `设计表 (${tableName})`,
+            type: 'design',
+            connectionId: connection.id,
+            dbName: tab.dbName,
+            tableName,
+            initialTab: 'columns',
+            readOnly: false,
+        });
+    }, [connection, tab.dbName, addTab]);
+
+    const buildConfig = useCallback(() => {
+        if (!connection) return null;
+        return {
+            ...connection.config,
+            port: Number(connection.config.port),
+            password: connection.config.password || '',
+            database: connection.config.database || '',
+            useSSH: connection.config.useSSH || false,
+            ssh: connection.config.ssh || { host: '', port: 22, user: '', password: '', keyPath: '' },
+        };
+    }, [connection]);
+
+    const handleCopyStructure = useCallback(async (tableName: string) => {
+        const config = buildConfig();
+        if (!config) return;
+        const res = await DBShowCreateTable(config as any, tab.dbName || '', tableName);
+        if (res.success) {
+            navigator.clipboard.writeText(res.data as string);
+            message.success('表结构已复制到剪贴板');
+        } else {
+            message.error(res.message);
+        }
+    }, [buildConfig, tab.dbName]);
+
+    const handleExport = useCallback(async (tableName: string, format: string) => {
+        const config = buildConfig();
+        if (!config) return;
+        const hide = message.loading(`正在导出 ${tableName} 为 ${format.toUpperCase()}...`, 0);
+        const res = await ExportTable(config as any, tab.dbName || '', tableName, format);
+        hide();
+        if (res.success) {
+            message.success('导出成功');
+        } else if (res.message !== '已取消') {
+            message.error('导出失败: ' + res.message);
+        }
+    }, [buildConfig, tab.dbName]);
+
+    const handleDeleteTable = useCallback((tableName: string) => {
+        const config = buildConfig();
+        if (!config) return;
+        Modal.confirm({
+            title: '确认删除表',
+            content: `确定删除表 "${tableName}" 吗？该操作不可恢复。`,
+            okButtonProps: { danger: true },
+            onOk: async () => {
+                const res = await DropTable(config as any, tab.dbName || '', tableName);
+                if (res.success) {
+                    message.success('表删除成功');
+                    loadData();
+                } else {
+                    message.error('删除失败: ' + res.message);
+                }
+            },
+        });
+    }, [buildConfig, tab.dbName, loadData]);
+
+    const handleRenameTable = useCallback((tableName: string) => {
+        const config = buildConfig();
+        if (!config) return;
+        let newName = tableName;
+        Modal.confirm({
+            title: '重命名表',
+            content: (
+                <Input
+                    defaultValue={tableName}
+                    onChange={e => { newName = e.target.value; }}
+                    placeholder="输入新表名"
+                    autoFocus
+                    style={{ marginTop: 8 }}
+                />
+            ),
+            onOk: async () => {
+                const trimmed = newName.trim();
+                if (!trimmed) { message.error('表名不能为空'); return Promise.reject(); }
+                if (trimmed === tableName) { message.warning('新旧表名相同'); return; }
+                const res = await RenameTable(config as any, tab.dbName || '', tableName, trimmed);
+                if (res.success) {
+                    message.success('表重命名成功');
+                    loadData();
+                } else {
+                    message.error('重命名失败: ' + res.message);
+                }
+            },
+        });
+    }, [buildConfig, tab.dbName, loadData]);
+
+    // --- Theme ---
+    const cardBg = darkMode ? 'rgba(255,255,255,0.04)' : 'rgba(0,0,0,0.02)';
+    const cardHoverBg = darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.04)';
+    const cardBorder = darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.06)';
+    const textPrimary = darkMode ? 'rgba(255,255,255,0.88)' : 'rgba(0,0,0,0.88)';
+    const textSecondary = darkMode ? 'rgba(255,255,255,0.55)' : 'rgba(0,0,0,0.55)';
+    const textMuted = darkMode ? 'rgba(255,255,255,0.35)' : 'rgba(0,0,0,0.35)';
+    const accentColor = '#1677ff';
+    const containerBg = darkMode ? 'rgba(0,0,0,0.15)' : 'rgba(0,0,0,0.01)';
+
+    const toggleSort = (field: SortField) => {
+        if (sortField === field) {
+            setSortOrder(o => o === 'asc' ? 'desc' : 'asc');
+        } else {
+            setSortField(field);
+            setSortOrder(field === 'name' ? 'asc' : 'desc');
+        }
+    };
+
+    const sortMenuItems = [
+        { key: 'name', label: `按名称${sortField === 'name' ? (sortOrder === 'asc' ? ' ↑' : ' ↓') : ''}`, onClick: () => toggleSort('name') },
+        { key: 'rows', label: `按行数${sortField === 'rows' ? (sortOrder === 'asc' ? ' ↑' : ' ↓') : ''}`, onClick: () => toggleSort('rows') },
+        { key: 'dataSize', label: `按大小${sortField === 'dataSize' ? (sortOrder === 'asc' ? ' ↑' : ' ↓') : ''}`, onClick: () => toggleSort('dataSize') },
+    ];
+
+    const totalRows = tables.reduce((s, t) => s + t.rows, 0);
+    const totalSize = tables.reduce((s, t) => s + t.dataSize + t.indexSize, 0);
+
+    if (loading) {
+        return (
+            <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', height: '100%', background: containerBg }}>
+                <Spin size="large" tip="加载表信息..." />
+            </div>
+        );
+    }
+
+    return (
+        <div style={{ display: 'flex', flexDirection: 'column', height: '100%', background: containerBg, overflow: 'hidden' }}>
+            {/* Toolbar */}
+            <div style={{ display: 'flex', alignItems: 'center', gap: 12, padding: '12px 16px', flexShrink: 0 }}>
+                <DatabaseOutlined style={{ fontSize: 16, color: accentColor }} />
+                <span style={{ fontSize: 14, fontWeight: 600, color: textPrimary }}>{tab.dbName}</span>
+                <span style={{ fontSize: 12, color: textMuted }}>
+                    {tables.length} 张表 · {formatRows(totalRows)} 行 · {formatSize(totalSize)}
+                </span>
+                <div style={{ flex: 1 }} />
+                <Input
+                    placeholder="搜索表名或注释..."
+                    prefix={<SearchOutlined style={{ color: textMuted }} />}
+                    value={searchText}
+                    onChange={e => setSearchText(e.target.value)}
+                    allowClear
+                    style={{ width: 240 }}
+                    size="small"
+                />
+                <Dropdown menu={{ items: sortMenuItems }} trigger={['click']}>
+                    <Tooltip title="排序"><SortAscendingOutlined style={{ fontSize: 16, color: textSecondary, cursor: 'pointer' }} /></Tooltip>
+                </Dropdown>
+                <Tooltip title="刷新"><ReloadOutlined onClick={loadData} style={{ fontSize: 16, color: textSecondary, cursor: 'pointer' }} /></Tooltip>
+            </div>
+
+            {/* Cards Grid */}
+            <div style={{ flex: 1, overflow: 'auto', padding: '0 16px 16px 16px' }}>
+                {sortedFiltered.length === 0 ? (
+                    <Empty description={searchText ? '无匹配结果' : '暂无表'} style={{ marginTop: 80 }} />
+                ) : (
+                    <div style={{
+                        display: 'grid',
+                        gridTemplateColumns: 'repeat(auto-fill, minmax(260px, 1fr))',
+                        gap: 12,
+                    }}>
+                        {sortedFiltered.map(t => (
+                            <Dropdown
+                                key={t.name}
+                                trigger={['contextMenu']}
+                                menu={{
+                                    items: [
+                                        { key: 'new-query', label: '新建查询', icon: <ConsoleSqlOutlined />, onClick: () => {
+                                            addTab({
+                                                id: `query-${Date.now()}`,
+                                                title: '新建查询',
+                                                type: 'query',
+                                                connectionId: tab.connectionId,
+                                                dbName: tab.dbName,
+                                                query: `SELECT * FROM ${t.name};`,
+                                            });
+                                        }},
+                                        { type: 'divider' },
+                                        { key: 'design-table', label: '设计表', icon: <EditOutlined />, onClick: () => openDesign(t.name) },
+                                        { key: 'copy-structure', label: '复制表结构', icon: <CopyOutlined />, onClick: () => handleCopyStructure(t.name) },
+                                        { key: 'backup-table', label: '备份表 (SQL)', icon: <SaveOutlined />, onClick: () => handleExport(t.name, 'sql') },
+                                        { key: 'rename-table', label: '重命名表', icon: <EditOutlined />, onClick: () => handleRenameTable(t.name) },
+                                        { key: 'drop-table', label: '删除表', icon: <DeleteOutlined />, danger: true, onClick: () => handleDeleteTable(t.name) },
+                                        { type: 'divider' },
+                                        { key: 'export', label: '导出表数据', icon: <ExportOutlined />, children: [
+                                            { key: 'export-csv', label: '导出 CSV', onClick: () => handleExport(t.name, 'csv') },
+                                            { key: 'export-xlsx', label: '导出 Excel (XLSX)', onClick: () => handleExport(t.name, 'xlsx') },
+                                            { key: 'export-json', label: '导出 JSON', onClick: () => handleExport(t.name, 'json') },
+                                            { key: 'export-md', label: '导出 Markdown', onClick: () => handleExport(t.name, 'md') },
+                                            { key: 'export-html', label: '导出 HTML', onClick: () => handleExport(t.name, 'html') },
+                                        ]},
+                                    ],
+                                }}
+                            >
+                                <div
+                                    onDoubleClick={() => openTable(t.name)}
+                                    style={{
+                                        background: cardBg,
+                                        border: `1px solid ${cardBorder}`,
+                                        borderRadius: 10,
+                                        padding: '14px 16px',
+                                        cursor: 'pointer',
+                                        transition: 'all 0.15s ease',
+                                        userSelect: 'none',
+                                    }}
+                                    onMouseEnter={e => { (e.currentTarget as HTMLDivElement).style.background = cardHoverBg; (e.currentTarget as HTMLDivElement).style.borderColor = accentColor; }}
+                                    onMouseLeave={e => { (e.currentTarget as HTMLDivElement).style.background = cardBg; (e.currentTarget as HTMLDivElement).style.borderColor = cardBorder; }}
+                                >
+                                    <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 8 }}>
+                                        <TableOutlined style={{ fontSize: 14, color: accentColor }} />
+                                        <Tooltip title={t.name} mouseEnterDelay={0.4}>
+                                            <span style={{ fontSize: 13, fontWeight: 600, color: textPrimary, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap', flex: 1, display: 'block' }}>
+                                                {t.name}
+                                            </span>
+                                        </Tooltip>
+                                    </div>
+                                    {t.comment && (
+                                        <Tooltip title={t.comment} mouseEnterDelay={0.4}>
+                                            <div style={{ fontSize: 12, color: textSecondary, marginBottom: 10, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>
+                                                {t.comment}
+                                            </div>
+                                        </Tooltip>
+                                    )}
+                                    <div style={{ display: 'flex', gap: 16, fontSize: 12, color: textMuted }}>
+                                        <span title="行数" style={{ minWidth: 52 }}>📊 {formatRows(t.rows)}</span>
+                                        <span title="数据大小" style={{ minWidth: 72 }}>💾 {formatSize(t.dataSize)}</span>
+                                        {t.engine && <span title="引擎" style={{ marginLeft: 'auto', opacity: 0.7 }}>{t.engine}</span>}
+                                    </div>
+                                </div>
+                            </Dropdown>
+                        ))}
+                    </div>
+                )}
+            </div>
+        </div>
+    );
+};
+
+export default TableOverview;

frontend/src/components/dataGridLayout.test.ts

@@ -0,0 +1,39 @@
+import { calculateTableBodyBottomPadding } from './dataGridLayout';
+
+const assertEqual = (actual: unknown, expected: unknown, message: string) => {
+  if (actual !== expected) {
+    throw new Error(`${message}\nactual: ${String(actual)}\nexpected: ${String(expected)}`);
+  }
+};
+
+assertEqual(
+  calculateTableBodyBottomPadding({
+    hasHorizontalOverflow: false,
+    floatingScrollbarHeight: 10,
+    floatingScrollbarGap: 6,
+  }),
+  0,
+  '无横向滚动条时不应增加底部间距'
+);
+
+assertEqual(
+  calculateTableBodyBottomPadding({
+    hasHorizontalOverflow: true,
+    floatingScrollbarHeight: 10,
+    floatingScrollbarGap: 6,
+  }),
+  28,
+  '默认悬浮滚动条应预留滚动条高度、间距和额外安全区'
+);
+
+assertEqual(
+  calculateTableBodyBottomPadding({
+    hasHorizontalOverflow: true,
+    floatingScrollbarHeight: 14,
+    floatingScrollbarGap: 4,
+  }),
+  30,
+  '较粗滚动条场景下应同步放大底部安全区'
+);
+
+console.log('dataGridLayout tests passed');

frontend/src/components/dataGridLayout.ts

@@ -0,0 +1,23 @@
+export interface TableBodyBottomPaddingOptions {
+  hasHorizontalOverflow: boolean;
+  floatingScrollbarHeight: number;
+  floatingScrollbarGap: number;
+}
+
+const MIN_SCROLLBAR_CLEARANCE = 8;
+const FLOATING_SCROLLBAR_VISUAL_EXTRA = 4;
+
+export const calculateTableBodyBottomPadding = ({
+  hasHorizontalOverflow,
+  floatingScrollbarHeight,
+  floatingScrollbarGap,
+}: TableBodyBottomPaddingOptions): number => {
+  if (!hasHorizontalOverflow) {
+    return 0;
+  }
+
+  const safeScrollbarHeight = Math.max(0, Math.ceil(floatingScrollbarHeight));
+  const safeScrollbarGap = Math.max(0, Math.ceil(floatingScrollbarGap));
+
+  return safeScrollbarHeight + FLOATING_SCROLLBAR_VISUAL_EXTRA + safeScrollbarGap + MIN_SCROLLBAR_CLEARANCE;
+};

frontend/src/components/redisViewerTree.test.ts

@@ -0,0 +1,105 @@
+import type { RedisKeyInfo } from '../types';
+import {
+  applyRenamedRedisKeyState,
+  applyTreeNodeCheck,
+  buildCheckedTreeNodeState,
+  buildRedisKeyTree,
+  isGroupFullyChecked,
+} from './redisViewerTree';
+
+const assert = (condition: unknown, message: string) => {
+  if (!condition) {
+    throw new Error(message);
+  }
+};
+
+const assertEqual = (actual: unknown, expected: unknown, message: string) => {
+  const actualText = JSON.stringify(actual);
+  const expectedText = JSON.stringify(expected);
+  if (actualText !== expectedText) {
+    throw new Error(`${message}\nactual: ${actualText}\nexpected: ${expectedText}`);
+  }
+};
+
+const sampleKeys: RedisKeyInfo[] = [
+  { key: 'app:user:1', type: 'string', ttl: -1 },
+  { key: 'app:user:2', type: 'string', ttl: -1 },
+  { key: 'app:order:1', type: 'hash', ttl: 120 },
+  { key: 'misc', type: 'set', ttl: -1 },
+];
+
+const tree = buildRedisKeyTree(sampleKeys, true);
+const appGroup = tree.treeData.find((node) => node.key === 'group:app');
+const userGroup = appGroup?.children?.find((node) => node.key === 'group:app:user');
+
+assert(appGroup, '应生成 group:app 节点');
+assert(userGroup, '应生成 group:app:user 节点');
+assertEqual(
+  appGroup?.descendantRawKeys,
+  ['app:order:1', 'app:user:1', 'app:user:2'],
+  'app 分组应收集全部后代 key'
+);
+
+const selectedAfterGroupCheck = applyTreeNodeCheck([], appGroup!, true);
+assertEqual(
+  selectedAfterGroupCheck,
+  ['app:order:1', 'app:user:1', 'app:user:2'],
+  '勾选分组应递归选中全部后代 key'
+);
+
+const checkedState = buildCheckedTreeNodeState(selectedAfterGroupCheck, tree);
+assertEqual(
+  checkedState.checked,
+  ['key:app:order:1', 'group:app:order', 'key:app:user:1', 'key:app:user:2', 'group:app:user', 'group:app'],
+  '全部后代已选中时，父分组和叶子都应进入 checked'
+);
+assertEqual(checkedState.halfChecked, [], '全部后代已选中时不应有 halfChecked');
+assertEqual(isGroupFullyChecked(appGroup!, selectedAfterGroupCheck), true, '全部后代已选中时，分组应视为 fully checked');
+
+const selectedAfterGroupUncheck = applyTreeNodeCheck(selectedAfterGroupCheck, appGroup!, false);
+assertEqual(selectedAfterGroupUncheck, [], '取消勾选分组应移除全部后代 key');
+assertEqual(isGroupFullyChecked(appGroup!, selectedAfterGroupUncheck), false, '取消后分组不应再是 fully checked');
+
+const partialState = buildCheckedTreeNodeState(['app:user:1'], tree);
+assertEqual(
+  partialState.halfChecked,
+  ['group:app:user', 'group:app'],
+  '仅部分后代选中时，相关分组应进入 halfChecked'
+);
+assertEqual(isGroupFullyChecked(appGroup!, ['app:user:1']), false, '部分选中时分组不应是 fully checked');
+
+const renamedState = applyRenamedRedisKeyState(
+  {
+    keys: sampleKeys,
+    selectedKey: 'app:user:2',
+    selectedKeys: ['app:user:1', 'app:user:2', 'misc'],
+  },
+  'app:user:2',
+  'app:user:200'
+);
+
+assertEqual(
+  renamedState.keys.map((item) => item.key),
+  ['app:user:1', 'app:user:200', 'app:order:1', 'misc'],
+  '重命名后 keys 列表应替换旧 key'
+);
+assertEqual(renamedState.selectedKey, 'app:user:200', '当前详情选中的 key 应切换为新 key');
+assertEqual(
+  renamedState.selectedKeys,
+  ['app:user:1', 'app:user:200', 'misc'],
+  '批量选中集合中的旧 key 应映射为新 key'
+);
+
+const unrelatedRenameState = applyRenamedRedisKeyState(
+  {
+    keys: sampleKeys,
+    selectedKey: 'misc',
+    selectedKeys: ['app:user:1'],
+  },
+  'app:order:1',
+  'app:order:9'
+);
+assertEqual(unrelatedRenameState.selectedKey, 'misc', '非当前详情 key 的重命名不应影响 selectedKey');
+assertEqual(unrelatedRenameState.selectedKeys, ['app:user:1'], '非已勾选 key 的重命名不应污染选中集合');
+
+console.log('redisViewerTree tests passed');

frontend/src/components/redisViewerTree.ts

@@ -0,0 +1,260 @@
+import type { DataNode } from 'antd/es/tree';
+import type { RedisKeyInfo } from '../types';
+
+const KEY_GROUP_DELIMITER = ':';
+const EMPTY_SEGMENT_LABEL = '(empty)';
+
+type RedisKeyTreeLeaf = {
+  keyInfo: RedisKeyInfo;
+  label: string;
+};
+
+type RedisKeyTreeGroup = {
+  name: string;
+  path: string;
+  children: Map<string, RedisKeyTreeGroup>;
+  leaves: RedisKeyTreeLeaf[];
+  leafCount: number;
+};
+
+export type RedisTreeDataNode = DataNode & {
+  nodeType: 'group' | 'leaf';
+  groupName?: string;
+  groupLeafCount?: number;
+  leafLabel?: string;
+  rawKey?: string;
+  keyType?: string;
+  ttl?: number;
+  descendantRawKeys?: string[];
+};
+
+export type RedisKeyTreeResult = {
+  treeData: RedisTreeDataNode[];
+  groupKeys: string[];
+};
+
+export type RedisTreeCheckedState = {
+  checked: string[];
+  halfChecked: string[];
+};
+
+export type RenamedRedisKeyStateInput = {
+  keys: RedisKeyInfo[];
+  selectedKey: string | null;
+  selectedKeys: string[];
+};
+
+export type RenamedRedisKeyStateResult = {
+  keys: RedisKeyInfo[];
+  selectedKey: string | null;
+  selectedKeys: string[];
+};
+
+const normalizeKeySegment = (segment: string): string => {
+  return segment === '' ? EMPTY_SEGMENT_LABEL : segment;
+};
+
+const createTreeGroup = (name: string, path: string): RedisKeyTreeGroup => {
+  return { name, path, children: new Map(), leaves: [], leafCount: 0 };
+};
+
+const calculateGroupLeafCount = (group: RedisKeyTreeGroup): number => {
+  let count = group.leaves.length;
+  group.children.forEach((child) => {
+    count += calculateGroupLeafCount(child);
+  });
+  group.leafCount = count;
+  return count;
+};
+
+export const buildLeafNodeKey = (rawKey: string): string => `key:${rawKey}`;
+
+export const parseRawKeyFromNodeKey = (nodeKey: React.Key): string | null => {
+  const keyText = String(nodeKey);
+  if (!keyText.startsWith('key:')) {
+    return null;
+  }
+  return keyText.slice(4);
+};
+
+export const buildRedisKeyTree = (
+  keys: RedisKeyInfo[],
+  sortLeafNodes: boolean
+): RedisKeyTreeResult => {
+  const root = createTreeGroup('__root__', '__root__');
+
+  keys.forEach((keyInfo) => {
+    const segments = keyInfo.key.split(KEY_GROUP_DELIMITER);
+    if (segments.length <= 1) {
+      root.leaves.push({ keyInfo, label: keyInfo.key });
+      return;
+    }
+
+    const groupSegments = segments.slice(0, -1);
+    const leafLabel = normalizeKeySegment(segments[segments.length - 1]);
+    let current = root;
+    const pathParts: string[] = [];
+
+    groupSegments.forEach((segment) => {
+      const normalized = normalizeKeySegment(segment);
+      pathParts.push(normalized);
+      const groupPath = pathParts.join(KEY_GROUP_DELIMITER);
+      let child = current.children.get(normalized);
+      if (!child) {
+        child = createTreeGroup(normalized, groupPath);
+        current.children.set(normalized, child);
+      }
+      current = child;
+    });
+
+    current.leaves.push({ keyInfo, label: leafLabel });
+  });
+
+  calculateGroupLeafCount(root);
+  const groupKeys: string[] = [];
+
+  const toTreeNodes = (group: RedisKeyTreeGroup): RedisTreeDataNode[] => {
+    const childGroups = Array.from(group.children.values()).sort((a, b) => a.name.localeCompare(b.name));
+    const childLeaves = sortLeafNodes
+      ? [...group.leaves].sort((a, b) => a.keyInfo.key.localeCompare(b.keyInfo.key))
+      : group.leaves;
+
+    const groupNodes: RedisTreeDataNode[] = childGroups.map((child) => {
+      const children = toTreeNodes(child);
+      const descendantRawKeys = children.flatMap((node) => {
+        if (node.nodeType === 'leaf') {
+          return node.rawKey ? [node.rawKey] : [];
+        }
+        return node.descendantRawKeys || [];
+      });
+      const groupNodeKey = `group:${child.path}`;
+      groupKeys.push(groupNodeKey);
+      return {
+        key: groupNodeKey,
+        title: child.name,
+        nodeType: 'group',
+        groupName: child.name,
+        groupLeafCount: child.leafCount,
+        selectable: false,
+        descendantRawKeys,
+        children,
+      };
+    });
+
+    const leafNodes: RedisTreeDataNode[] = childLeaves.map((leaf) => {
+      return {
+        key: buildLeafNodeKey(leaf.keyInfo.key),
+        isLeaf: true,
+        title: leaf.label,
+        nodeType: 'leaf',
+        leafLabel: leaf.label,
+        rawKey: leaf.keyInfo.key,
+        keyType: leaf.keyInfo.type,
+        ttl: leaf.keyInfo.ttl,
+      };
+    });
+
+    return [...groupNodes, ...leafNodes];
+  };
+
+  return {
+    treeData: toTreeNodes(root),
+    groupKeys,
+  };
+};
+
+export const applyTreeNodeCheck = (
+  selectedKeys: string[],
+  node: RedisTreeDataNode,
+  checked: boolean
+): string[] => {
+  if (node.nodeType === 'leaf') {
+    if (!node.rawKey) {
+      return selectedKeys;
+    }
+    if (checked) {
+      return Array.from(new Set([...selectedKeys, node.rawKey]));
+    }
+    return selectedKeys.filter((item) => item !== node.rawKey);
+  }
+
+  const descendantRawKeys = node.descendantRawKeys || [];
+  if (descendantRawKeys.length === 0) {
+    return selectedKeys;
+  }
+  if (checked) {
+    return Array.from(new Set([...selectedKeys, ...descendantRawKeys]));
+  }
+  const removeSet = new Set(descendantRawKeys);
+  return selectedKeys.filter((item) => !removeSet.has(item));
+};
+
+const walkGroupStates = (
+  nodes: RedisTreeDataNode[],
+  selectedKeySet: Set<string>,
+  checked: string[],
+  halfChecked: string[]
+) => {
+  nodes.forEach((node) => {
+    if (node.nodeType === 'leaf') {
+      if (node.rawKey && selectedKeySet.has(node.rawKey)) {
+        checked.push(String(node.key));
+      }
+      return;
+    }
+
+    walkGroupStates((node.children || []) as RedisTreeDataNode[], selectedKeySet, checked, halfChecked);
+    const descendantRawKeys = node.descendantRawKeys || [];
+    if (descendantRawKeys.length === 0) {
+      return;
+    }
+
+    const selectedCount = descendantRawKeys.filter((rawKey) => selectedKeySet.has(rawKey)).length;
+    if (selectedCount === descendantRawKeys.length) {
+      checked.push(String(node.key));
+      return;
+    }
+    if (selectedCount > 0) {
+      halfChecked.push(String(node.key));
+    }
+  });
+};
+
+export const buildCheckedTreeNodeState = (
+  selectedKeys: string[],
+  keyTree: RedisKeyTreeResult
+): RedisTreeCheckedState => {
+  const selectedKeySet = new Set(selectedKeys);
+  const checked: string[] = [];
+  const halfChecked: string[] = [];
+
+  walkGroupStates(keyTree.treeData, selectedKeySet, checked, halfChecked);
+  return { checked, halfChecked };
+};
+
+export const isGroupFullyChecked = (
+  node: RedisTreeDataNode,
+  selectedKeys: string[]
+): boolean => {
+  if (node.nodeType !== 'group') {
+    return false;
+  }
+  const descendantRawKeys = node.descendantRawKeys || [];
+  if (descendantRawKeys.length === 0) {
+    return false;
+  }
+  const selectedKeySet = new Set(selectedKeys);
+  return descendantRawKeys.every((rawKey) => selectedKeySet.has(rawKey));
+};
+
+export const applyRenamedRedisKeyState = (
+  state: RenamedRedisKeyStateInput,
+  oldKey: string,
+  newKey: string
+): RenamedRedisKeyStateResult => {
+  return {
+    keys: state.keys.map((item) => (item.key === oldKey ? { ...item, key: newKey } : item)),
+    selectedKey: state.selectedKey === oldKey ? newKey : state.selectedKey,
+    selectedKeys: state.selectedKeys.map((item) => (item === oldKey ? newKey : item)),
+  };
+};

frontend/src/components/redisViewerWorkbenchTheme.test.ts

@@ -0,0 +1,50 @@
+import { buildRedisWorkbenchTheme } from './redisViewerWorkbenchTheme';
+
+const assertEqual = (actual: unknown, expected: unknown, message: string) => {
+  if (actual !== expected) {
+    throw new Error(`${message}\nactual: ${String(actual)}\nexpected: ${String(expected)}`);
+  }
+};
+
+const assertNotEqual = (actual: unknown, expected: unknown, message: string) => {
+  if (actual === expected) {
+    throw new Error(`${message}\nactual: ${String(actual)}\nnotExpected: ${String(expected)}`);
+  }
+};
+
+const assertMatch = (value: string, pattern: RegExp, message: string) => {
+  if (!pattern.test(value)) {
+    throw new Error(`${message}\nactual: ${value}\npattern: ${String(pattern)}`);
+  }
+};
+
+const darkTheme = buildRedisWorkbenchTheme({
+  darkMode: true,
+  opacity: 0.72,
+  blur: 14,
+});
+
+assertEqual(darkTheme.isDark, true, 'dark 主题标记应为 true');
+assertMatch(darkTheme.panelBg, /^rgba\(/, 'dark 主题面板背景应为 rgba');
+assertMatch(darkTheme.toolbarPrimaryBg, /^linear-gradient\(/, '工具栏主按钮应使用渐变背景');
+assertNotEqual(darkTheme.actionDangerBg, darkTheme.actionSecondaryBg, '危险态按钮背景不应与普通按钮相同');
+assertNotEqual(darkTheme.treeSelectedBg, darkTheme.treeHoverBg, '树节点选中态与悬浮态不应相同');
+assertMatch(darkTheme.appBg, /rgba\(15, 15, 17,/, 'dark 背景应保持中性黑基底');
+assertMatch(darkTheme.panelBg, /rgba\(24, 24, 28,/, 'dark 面板背景应保持中性黑灰');
+assertMatch(darkTheme.panelBgStrong, /rgba\(31, 31, 36,/, 'dark 强面板背景应保持中性黑灰');
+assertEqual(darkTheme.backdropFilter, 'blur(14px)', 'blur 参数应映射为 backdropFilter');
+
+const lightTheme = buildRedisWorkbenchTheme({
+  darkMode: false,
+  opacity: 1,
+  blur: 0,
+});
+
+assertEqual(lightTheme.isDark, false, 'light 主题标记应为 false');
+assertMatch(lightTheme.panelBg, /^rgba\(/, 'light 主题面板背景应为 rgba');
+assertMatch(lightTheme.contentEmptyBg, /^linear-gradient\(/, 'light 空状态背景应为渐变');
+assertNotEqual(lightTheme.textPrimary, lightTheme.textSecondary, '主次文本颜色应区分');
+assertNotEqual(lightTheme.statusTagBg, lightTheme.statusTagMutedBg, '状态 tag 应区分普通与弱化样式');
+assertEqual(lightTheme.backdropFilter, 'none', 'blur=0 时 backdropFilter 应为 none');
+
+console.log('redisViewerWorkbenchTheme tests passed');

frontend/src/components/redisViewerWorkbenchTheme.ts

@@ -0,0 +1,129 @@
+type RedisWorkbenchThemeInput = {
+  darkMode: boolean;
+  opacity: number;
+  blur: number;
+};
+
+type RedisWorkbenchTheme = {
+  isDark: boolean;
+  appBg: string;
+  panelBg: string;
+  panelBgStrong: string;
+  panelBgSubtle: string;
+  panelBorder: string;
+  panelInset: string;
+  toolbarPrimaryBg: string;
+  contentEmptyBg: string;
+  textPrimary: string;
+  textSecondary: string;
+  textMuted: string;
+  accent: string;
+  accentSoft: string;
+  accentBorder: string;
+  actionSecondaryBg: string;
+  actionSecondaryBorder: string;
+  actionDangerBg: string;
+  actionDangerBorder: string;
+  actionDangerText: string;
+  statusTagBg: string;
+  statusTagBorder: string;
+  statusTagMutedBg: string;
+  statusTagMutedBorder: string;
+  treeHoverBg: string;
+  treeSelectedBg: string;
+  treeSelectedBorder: string;
+  divider: string;
+  shadow: string;
+  backdropFilter: string;
+};
+
+const clamp = (value: number, min: number, max: number) => Math.min(max, Math.max(min, value));
+
+export const buildRedisWorkbenchTheme = ({
+  darkMode,
+  opacity,
+  blur,
+}: RedisWorkbenchThemeInput): RedisWorkbenchTheme => {
+  const normalizedOpacity = clamp(opacity, 0.1, 1);
+  const normalizedBlur = Math.max(0, Math.round(blur));
+  const isTranslucent = normalizedOpacity < 0.999 || normalizedBlur > 0;
+
+  if (darkMode) {
+    const appTopAlpha = isTranslucent ? Math.max(0.08, Math.min(0.22, normalizedOpacity * 0.16)) : 0.92;
+    const appBottomAlpha = isTranslucent ? Math.max(0.12, Math.min(0.28, normalizedOpacity * 0.22)) : 0.96;
+    const panelAlpha = isTranslucent ? Math.max(0.06, Math.min(0.16, normalizedOpacity * 0.1)) : 0.34;
+    const strongAlpha = isTranslucent ? Math.max(0.1, Math.min(0.22, normalizedOpacity * 0.16)) : 0.42;
+    const subtleAlpha = isTranslucent ? Math.max(0.03, Math.min(0.08, normalizedOpacity * 0.05)) : 0.08;
+    return {
+      isDark: true,
+      appBg: `linear-gradient(180deg, rgba(15, 15, 17, ${appTopAlpha}) 0%, rgba(11, 11, 13, ${appBottomAlpha}) 100%)`,
+      panelBg: `rgba(24, 24, 28, ${panelAlpha})`,
+      panelBgStrong: `rgba(31, 31, 36, ${strongAlpha})`,
+      panelBgSubtle: `rgba(255, 255, 255, ${subtleAlpha})`,
+      panelBorder: `1px solid rgba(255, 255, 255, ${isTranslucent ? Math.max(0.12, Math.min(0.24, normalizedOpacity * 0.2)) : 0.08})`,
+      panelInset: `inset 0 1px 0 rgba(255,255,255,${isTranslucent ? Math.max(0.05, Math.min(0.12, normalizedOpacity * 0.1)) : 0.04})`,
+      toolbarPrimaryBg: `linear-gradient(135deg, rgba(246,196,83,0.22) 0%, rgba(246,196,83,0.12) 100%)`,
+      contentEmptyBg: `linear-gradient(180deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.015) 100%)`,
+      textPrimary: 'rgba(245, 247, 251, 0.96)',
+      textSecondary: 'rgba(218, 224, 235, 0.82)',
+      textMuted: 'rgba(168, 177, 194, 0.72)',
+      accent: '#f6c453',
+      accentSoft: 'rgba(246, 196, 83, 0.18)',
+      accentBorder: 'rgba(246, 196, 83, 0.3)',
+      actionSecondaryBg: 'rgba(255, 255, 255, 0.04)',
+      actionSecondaryBorder: 'rgba(255, 255, 255, 0.09)',
+      actionDangerBg: 'rgba(255, 95, 95, 0.12)',
+      actionDangerBorder: 'rgba(255, 95, 95, 0.28)',
+      actionDangerText: '#ff8f8f',
+      statusTagBg: 'rgba(25, 106, 255, 0.16)',
+      statusTagBorder: 'rgba(25, 106, 255, 0.28)',
+      statusTagMutedBg: 'rgba(255, 255, 255, 0.04)',
+      statusTagMutedBorder: 'rgba(255, 255, 255, 0.08)',
+      treeHoverBg: 'rgba(255, 255, 255, 0.045)',
+      treeSelectedBg: 'linear-gradient(90deg, rgba(246,196,83,0.2) 0%, rgba(246,196,83,0.08) 100%)',
+      treeSelectedBorder: 'rgba(246, 196, 83, 0.24)',
+      divider: 'rgba(255, 255, 255, 0.07)',
+      shadow: '0 20px 48px rgba(0, 0, 0, 0.26)',
+      backdropFilter: normalizedBlur > 0 ? `blur(${normalizedBlur}px)` : 'none',
+    };
+  }
+
+  const appTopAlpha = isTranslucent ? Math.max(0.16, Math.min(0.36, normalizedOpacity * 0.24)) : 0.98;
+  const appBottomAlpha = isTranslucent ? Math.max(0.22, Math.min(0.44, normalizedOpacity * 0.32)) : 0.96;
+  const panelAlpha = isTranslucent ? Math.max(0.18, Math.min(0.4, normalizedOpacity * 0.26)) : 0.94;
+  const strongAlpha = isTranslucent ? Math.max(0.26, Math.min(0.52, normalizedOpacity * 0.34)) : 0.98;
+  return {
+    isDark: false,
+    appBg: `linear-gradient(180deg, rgba(248, 250, 252, ${appTopAlpha}) 0%, rgba(242, 245, 248, ${appBottomAlpha}) 100%)`,
+    panelBg: `rgba(255, 255, 255, ${panelAlpha})`,
+    panelBgStrong: `rgba(255, 255, 255, ${strongAlpha})`,
+    panelBgSubtle: 'rgba(15, 23, 42, 0.03)',
+    panelBorder: `1px solid rgba(15, 23, 42, ${isTranslucent ? Math.max(0.1, Math.min(0.18, normalizedOpacity * 0.12)) : 0.08})`,
+    panelInset: `inset 0 1px 0 rgba(255,255,255,${isTranslucent ? 0.38 : 0.72})`,
+    toolbarPrimaryBg: 'linear-gradient(135deg, rgba(22,119,255,0.12) 0%, rgba(22,119,255,0.06) 100%)',
+    contentEmptyBg: 'linear-gradient(180deg, rgba(15,23,42,0.02) 0%, rgba(15,23,42,0.01) 100%)',
+    textPrimary: 'rgba(15, 23, 42, 0.92)',
+    textSecondary: 'rgba(51, 65, 85, 0.82)',
+    textMuted: 'rgba(100, 116, 139, 0.76)',
+    accent: '#1677ff',
+    accentSoft: 'rgba(22, 119, 255, 0.12)',
+    accentBorder: 'rgba(22, 119, 255, 0.22)',
+    actionSecondaryBg: 'rgba(255, 255, 255, 0.72)',
+    actionSecondaryBorder: 'rgba(15, 23, 42, 0.08)',
+    actionDangerBg: 'rgba(255, 77, 79, 0.08)',
+    actionDangerBorder: 'rgba(255, 77, 79, 0.24)',
+    actionDangerText: '#cf1322',
+    statusTagBg: 'rgba(22, 119, 255, 0.1)',
+    statusTagBorder: 'rgba(22, 119, 255, 0.16)',
+    statusTagMutedBg: 'rgba(15, 23, 42, 0.04)',
+    statusTagMutedBorder: 'rgba(15, 23, 42, 0.08)',
+    treeHoverBg: 'rgba(15, 23, 42, 0.035)',
+    treeSelectedBg: 'linear-gradient(90deg, rgba(22,119,255,0.12) 0%, rgba(22,119,255,0.05) 100%)',
+    treeSelectedBorder: 'rgba(22, 119, 255, 0.18)',
+    divider: 'rgba(15, 23, 42, 0.08)',
+    shadow: '0 22px 52px rgba(15, 23, 42, 0.08)',
+    backdropFilter: normalizedBlur > 0 ? `blur(${normalizedBlur}px)` : 'none',
+  };
+};
+
+export type { RedisWorkbenchTheme, RedisWorkbenchThemeInput };

frontend/src/types.ts

@@ -116,7 +116,7 @@ export interface TriggerDefinition {
 export interface TabData {
   id: string;
   title: string;
-  type: 'query' | 'table' | 'design' | 'redis-keys' | 'redis-command' | 'trigger' | 'view-def' | 'routine-def';
+  type: 'query' | 'table' | 'design' | 'redis-keys' | 'redis-command' | 'trigger' | 'view-def' | 'routine-def' | 'table-overview';
   connectionId: string;
   dbName?: string;
   tableName?: string;
@@ -128,6 +128,7 @@ export interface TabData {
   viewName?: string; // View name for view definition tabs
   routineName?: string; // Routine name for function/procedure definition tabs
   routineType?: string; // 'FUNCTION' or 'PROCEDURE'
+  savedQueryId?: string; // Saved query identity for quick-save behavior
 }
 
 export interface DatabaseNode {

frontend/src/utils/overlayWorkbenchTheme.test.ts

@@ -0,0 +1,27 @@
+import { buildOverlayWorkbenchTheme } from './overlayWorkbenchTheme';
+
+const assertEqual = (actual: unknown, expected: unknown, message: string) => {
+  if (actual !== expected) {
+    throw new Error(`${message}\nactual: ${String(actual)}\nexpected: ${String(expected)}`);
+  }
+};
+
+const assertMatch = (value: string, pattern: RegExp, message: string) => {
+  if (!pattern.test(value)) {
+    throw new Error(`${message}\nactual: ${value}\npattern: ${String(pattern)}`);
+  }
+};
+
+const darkTheme = buildOverlayWorkbenchTheme(true);
+assertEqual(darkTheme.isDark, true, 'dark 主题标记应为 true');
+assertMatch(darkTheme.shellBg, /rgba\(15, 15, 17,/, 'dark 弹层背景应保持中性黑');
+assertMatch(darkTheme.sectionBg, /rgba\(255,?\s*255,?\s*255,?\s*0\.03\)/, 'dark section 背景透明度应匹配');
+assertEqual(darkTheme.iconColor, '#ffd666', 'dark 图标色应为金色强调');
+
+const lightTheme = buildOverlayWorkbenchTheme(false);
+assertEqual(lightTheme.isDark, false, 'light 主题标记应为 false');
+assertMatch(lightTheme.shellBg, /rgba\(255,255,255,0\.98\)/, 'light 弹层背景透明度应匹配');
+assertMatch(lightTheme.sectionBg, /rgba\(255,?\s*255,?\s*255,?\s*0\.84\)/, 'light section 背景透明度应匹配');
+assertEqual(lightTheme.iconColor, '#1677ff', 'light 图标色应为蓝色强调');
+
+console.log('overlayWorkbenchTheme tests passed');

frontend/src/utils/overlayWorkbenchTheme.ts

@@ -0,0 +1,59 @@
+type OverlayWorkbenchTheme = {
+  isDark: boolean;
+  shellBg: string;
+  shellBorder: string;
+  shellShadow: string;
+  shellBackdropFilter: string;
+  sectionBg: string;
+  sectionBorder: string;
+  mutedText: string;
+  titleText: string;
+  iconBg: string;
+  iconColor: string;
+  hoverBg: string;
+  selectedBg: string;
+  selectedText: string;
+  divider: string;
+};
+
+export const buildOverlayWorkbenchTheme = (darkMode: boolean): OverlayWorkbenchTheme => {
+  if (darkMode) {
+    return {
+      isDark: true,
+      shellBg: 'linear-gradient(180deg, rgba(15, 15, 17, 0.96) 0%, rgba(11, 11, 13, 0.98) 100%)',
+      shellBorder: '1px solid rgba(255,255,255,0.08)',
+      shellShadow: '0 24px 56px rgba(0,0,0,0.34)',
+      shellBackdropFilter: 'blur(18px)',
+      sectionBg: 'rgba(255,255,255,0.03)',
+      sectionBorder: '1px solid rgba(255,255,255,0.08)',
+      mutedText: 'rgba(255,255,255,0.5)',
+      titleText: '#f5f7ff',
+      iconBg: 'rgba(255,214,102,0.12)',
+      iconColor: '#ffd666',
+      hoverBg: 'rgba(255,214,102,0.10)',
+      selectedBg: 'rgba(255,214,102,0.14)',
+      selectedText: '#ffd666',
+      divider: 'rgba(255,255,255,0.08)',
+    };
+  }
+
+  return {
+    isDark: false,
+    shellBg: 'linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,248,252,0.98) 100%)',
+    shellBorder: '1px solid rgba(16,24,40,0.08)',
+    shellShadow: '0 18px 42px rgba(15,23,42,0.12)',
+    shellBackdropFilter: 'none',
+    sectionBg: 'rgba(255,255,255,0.84)',
+    sectionBorder: '1px solid rgba(16,24,40,0.08)',
+    mutedText: 'rgba(16,24,40,0.55)',
+    titleText: '#162033',
+    iconBg: 'rgba(24,144,255,0.1)',
+    iconColor: '#1677ff',
+    hoverBg: 'rgba(24,144,255,0.08)',
+    selectedBg: 'rgba(24,144,255,0.12)',
+    selectedText: '#1677ff',
+    divider: 'rgba(16,24,40,0.08)',
+  };
+};
+
+export type { OverlayWorkbenchTheme };

frontend/vite.config.d.ts

@@ -0,0 +1,2 @@
+declare const _default: import("vite").UserConfig;
+export default _default;

frontend/vite.config.js

@@ -0,0 +1,15 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+// https://vitejs.dev/config/
+export default defineConfig({
+    plugins: [react()],
+    server: {
+        host: '127.0.0.1',
+        port: 5173,
+        strictPort: true,
+    },
+    build: {
+        outDir: 'dist', // Standard Wails output directory
+        emptyOutDir: true,
+    }
+});

frontend/vite.config.ts

@@ -5,6 +5,7 @@ import react from '@vitejs/plugin-react'
 export default defineConfig({
   plugins: [react()],
   server: {
+    host: '127.0.0.1',
     port: 5173,
     strictPort: true,
   },

frontend/wailsjs/go/app/App.d.ts

@@ -9,6 +9,8 @@ export function ApplyChanges(arg1:connection.ConnectionConfig,arg2:string,arg3:s
 
 export function CancelQuery(arg1:string):Promise<connection.QueryResult>;
 
+export function CancelSQLFileExecution(arg1:string):Promise<connection.QueryResult>;
+
 export function CheckDriverNetworkStatus():Promise<connection.QueryResult>;
 
 export function CheckForUpdates():Promise<connection.QueryResult>;
@@ -41,6 +43,8 @@ export function DBQuery(arg1:connection.ConnectionConfig,arg2:string,arg3:string
 
 export function DBQueryIsolated(arg1:connection.ConnectionConfig,arg2:string,arg3:string):Promise<connection.QueryResult>;
 
+export function DBQueryMulti(arg1:connection.ConnectionConfig,arg2:string,arg3:string,arg4:string):Promise<connection.QueryResult>;
+
 export function DBQueryWithCancel(arg1:connection.ConnectionConfig,arg2:string,arg3:string,arg4:string):Promise<connection.QueryResult>;
 
 export function DBShowCreateTable(arg1:connection.ConnectionConfig,arg2:string,arg3:string):Promise<connection.QueryResult>;
@@ -63,6 +67,8 @@ export function DropTable(arg1:connection.ConnectionConfig,arg2:string,arg3:stri
 
 export function DropView(arg1:connection.ConnectionConfig,arg2:string,arg3:string):Promise<connection.QueryResult>;
 
+export function ExecuteSQLFile(arg1:connection.ConnectionConfig,arg2:string,arg3:string,arg4:string):Promise<connection.QueryResult>;
+
 export function ExportData(arg1:Array<Record<string, any>>,arg2:Array<string>,arg3:string,arg4:string):Promise<connection.QueryResult>;
 
 export function ExportDatabaseSQL(arg1:connection.ConnectionConfig,arg2:string,arg3:boolean):Promise<connection.QueryResult>;
@@ -131,6 +137,8 @@ export function RedisGetServerInfo(arg1:connection.ConnectionConfig):Promise<con
 
 export function RedisGetValue(arg1:connection.ConnectionConfig,arg2:string):Promise<connection.QueryResult>;
 
+export function RedisKeyExists(arg1:connection.ConnectionConfig,arg2:string):Promise<connection.QueryResult>;
+
 export function RedisListPush(arg1:connection.ConnectionConfig,arg2:string,arg3:Array<string>):Promise<connection.QueryResult>;
 
 export function RedisListSet(arg1:connection.ConnectionConfig,arg2:string,arg3:number,arg4:string):Promise<connection.QueryResult>;
@@ -188,3 +196,5 @@ export function SelectSSHKeyFile(arg1:string):Promise<connection.QueryResult>;
 export function SetWindowTranslucency(arg1:number,arg2:number):Promise<void>;
 
 export function TestConnection(arg1:connection.ConnectionConfig):Promise<connection.QueryResult>;
+
+export function TruncateTables(arg1:connection.ConnectionConfig,arg2:string,arg3:Array<string>):Promise<connection.QueryResult>;

frontend/wailsjs/go/app/App.js

@@ -10,6 +10,10 @@ export function CancelQuery(arg1) {
   return window['go']['app']['App']['CancelQuery'](arg1);
 }
 
+export function CancelSQLFileExecution(arg1) {
+  return window['go']['app']['App']['CancelSQLFileExecution'](arg1);
+}
+
 export function CheckDriverNetworkStatus() {
   return window['go']['app']['App']['CheckDriverNetworkStatus']();
 }
@@ -74,6 +78,10 @@ export function DBQueryIsolated(arg1, arg2, arg3) {
   return window['go']['app']['App']['DBQueryIsolated'](arg1, arg2, arg3);
 }
 
+export function DBQueryMulti(arg1, arg2, arg3, arg4) {
+  return window['go']['app']['App']['DBQueryMulti'](arg1, arg2, arg3, arg4);
+}
+
 export function DBQueryWithCancel(arg1, arg2, arg3, arg4) {
   return window['go']['app']['App']['DBQueryWithCancel'](arg1, arg2, arg3, arg4);
 }
@@ -118,6 +126,10 @@ export function DropView(arg1, arg2, arg3) {
   return window['go']['app']['App']['DropView'](arg1, arg2, arg3);
 }
 
+export function ExecuteSQLFile(arg1, arg2, arg3, arg4) {
+  return window['go']['app']['App']['ExecuteSQLFile'](arg1, arg2, arg3, arg4);
+}
+
 export function ExportData(arg1, arg2, arg3, arg4) {
   return window['go']['app']['App']['ExportData'](arg1, arg2, arg3, arg4);
 }
@@ -254,6 +266,10 @@ export function RedisGetValue(arg1, arg2) {
   return window['go']['app']['App']['RedisGetValue'](arg1, arg2);
 }
 
+export function RedisKeyExists(arg1, arg2) {
+  return window['go']['app']['App']['RedisKeyExists'](arg1, arg2);
+}
+
 export function RedisListPush(arg1, arg2, arg3) {
   return window['go']['app']['App']['RedisListPush'](arg1, arg2, arg3);
 }
@@ -369,3 +385,7 @@ export function SetWindowTranslucency(arg1, arg2) {
 export function TestConnection(arg1) {
   return window['go']['app']['App']['TestConnection'](arg1);
 }
+
+export function TruncateTables(arg1, arg2, arg3) {
+  return window['go']['app']['App']['TruncateTables'](arg1, arg2, arg3);
+}

internal/app/methods_db.go

@@ -109,6 +109,8 @@ func (a *App) CreateDatabase(config connection.ConnectionConfig, dbName string)
 		// MariaDB uses same syntax as MySQL
 	} else if dbType == "sphinx" {
 		return connection.QueryResult{Success: false, Message: "Sphinx 暂不支持创建数据库"}
+	} else if dbType == "oracle" || dbType == "dameng" {
+		return connection.QueryResult{Success: false, Message: fmt.Sprintf("当前数据源（%s）的「数据库」实际为用户/Schema，暂不支持通过此入口创建，请使用 SQL 编辑器执行 CREATE USER 语句", dbType)}
 	}
 
 	_, err = dbInst.Exec(query)
@@ -116,7 +118,7 @@ func (a *App) CreateDatabase(config connection.ConnectionConfig, dbName string)
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 
-	return connection.QueryResult{Success: true, Message: "Database created successfully"}
+	return connection.QueryResult{Success: true, Message: "数据库创建成功"}
 }
 
 func resolveDDLDBType(config connection.ConnectionConfig) string {
@@ -487,6 +489,151 @@ func (a *App) DBQueryWithCancel(config connection.ConnectionConfig, dbName strin
 	}
 }
 
+// DBQueryMulti 执行可能包含多条 SQL 语句的查询，返回多个结果集。
+// 如果底层驱动支持 MultiResultQuerier，一次性执行所有语句；
+// 否则按分号拆分后逐条执行，模拟多结果集。
+func (a *App) DBQueryMulti(config connection.ConnectionConfig, dbName string, query string, queryID string) connection.QueryResult {
+	runConfig := normalizeRunConfig(config, dbName)
+
+	if queryID == "" {
+		queryID = generateQueryID()
+	}
+
+	dbInst, err := a.getDatabase(runConfig)
+	if err != nil {
+		logger.Error(err, "DBQueryMulti 获取连接失败：%s", formatConnSummary(runConfig))
+		return connection.QueryResult{Success: false, Message: err.Error(), QueryID: queryID}
+	}
+
+	query = sanitizeSQLForPgLike(runConfig.Type, query)
+	timeoutSeconds := runConfig.Timeout
+	if timeoutSeconds <= 0 {
+		timeoutSeconds = 30
+	}
+	ctx, cancel := utils.ContextWithTimeout(time.Duration(timeoutSeconds) * time.Second)
+	defer cancel()
+
+	a.queryMu.Lock()
+	a.runningQueries[queryID] = queryContext{
+		cancel:  cancel,
+		started: time.Now(),
+	}
+	a.queryMu.Unlock()
+	defer func() {
+		a.queryMu.Lock()
+		delete(a.runningQueries, queryID)
+		a.queryMu.Unlock()
+	}()
+
+	// 尝试使用驱动原生多结果集支持
+	runMultiQuery := func(inst db.Database) ([]connection.ResultSetData, error) {
+		if q, ok := inst.(db.MultiResultQuerierContext); ok {
+			return q.QueryMultiContext(ctx, query)
+		}
+		if q, ok := inst.(db.MultiResultQuerier); ok {
+			return q.QueryMulti(query)
+		}
+		return nil, nil // 返回 nil 表示不支持
+	}
+
+	results, err := runMultiQuery(dbInst)
+	if err != nil && shouldRefreshCachedConnection(err) {
+		if a.invalidateCachedDatabase(runConfig, err) {
+			retryInst, retryErr := a.getDatabaseForcePing(runConfig)
+			if retryErr != nil {
+				logger.Error(retryErr, "DBQueryMulti 重建连接失败：%s SQL片段=%q", formatConnSummary(runConfig), sqlSnippet(query))
+				return connection.QueryResult{Success: false, Message: retryErr.Error(), QueryID: queryID}
+			}
+			results, err = runMultiQuery(retryInst)
+		}
+	}
+	if err != nil {
+		logger.Error(err, "DBQueryMulti 执行失败：%s SQL片段=%q", formatConnSummary(runConfig), sqlSnippet(query))
+		return connection.QueryResult{Success: false, Message: err.Error(), QueryID: queryID}
+	}
+
+	// 驱动支持多结果集，直接返回
+	if results != nil {
+		return connection.QueryResult{Success: true, Data: results, QueryID: queryID}
+	}
+
+	// 驱动不支持多结果集，回退到逐条执行
+	statements := splitSQLStatements(query)
+	if len(statements) == 0 {
+		return connection.QueryResult{
+			Success: true,
+			Data:    []connection.ResultSetData{},
+			QueryID: queryID,
+		}
+	}
+
+	var resultSets []connection.ResultSetData
+	for idx, stmt := range statements {
+		stmt = strings.TrimSpace(stmt)
+		if stmt == "" {
+			continue
+		}
+
+		if isReadOnlySQLQuery(runConfig.Type, stmt) {
+			var data []map[string]interface{}
+			var columns []string
+			if q, ok := dbInst.(interface {
+				QueryContext(context.Context, string) ([]map[string]interface{}, []string, error)
+			}); ok {
+				data, columns, err = q.QueryContext(ctx, stmt)
+			} else {
+				data, columns, err = dbInst.Query(stmt)
+			}
+			if err != nil {
+				logger.Error(err, "DBQueryMulti 逐条查询失败（第 %d/%d 条）：%s SQL片段=%q", idx+1, len(statements), formatConnSummary(runConfig), sqlSnippet(stmt))
+				errMsg := fmt.Sprintf("第 %d 条语句执行失败: %v", idx+1, err)
+				if len(resultSets) > 0 {
+					errMsg += fmt.Sprintf("（前 %d 条已执行成功）", len(resultSets))
+				}
+				return connection.QueryResult{Success: false, Message: errMsg, QueryID: queryID}
+			}
+			if data == nil {
+				data = make([]map[string]interface{}, 0)
+			}
+			if columns == nil {
+				columns = []string{}
+			}
+			resultSets = append(resultSets, connection.ResultSetData{Rows: data, Columns: columns})
+		} else {
+			var affected int64
+			if e, ok := dbInst.(interface {
+				ExecContext(context.Context, string) (int64, error)
+			}); ok {
+				affected, err = e.ExecContext(ctx, stmt)
+			} else {
+				affected, err = dbInst.Exec(stmt)
+			}
+			if err != nil {
+				logger.Error(err, "DBQueryMulti 逐条执行失败（第 %d/%d 条）：%s SQL片段=%q", idx+1, len(statements), formatConnSummary(runConfig), sqlSnippet(stmt))
+				errMsg := fmt.Sprintf("第 %d 条语句执行失败: %v", idx+1, err)
+				if len(resultSets) > 0 {
+					errMsg += fmt.Sprintf("（前 %d 条已执行成功）", len(resultSets))
+				}
+				return connection.QueryResult{Success: false, Message: errMsg, QueryID: queryID}
+			}
+			resultSets = append(resultSets, connection.ResultSetData{
+				Rows:    []map[string]interface{}{{"affectedRows": affected}},
+				Columns: []string{"affectedRows"},
+			})
+		}
+	}
+
+	if resultSets == nil {
+		resultSets = []connection.ResultSetData{}
+	}
+	// 回退到逐条执行且有多条语句时，附加提示信息
+	var fallbackMsg string
+	if len(statements) > 1 {
+		fallbackMsg = fmt.Sprintf("当前数据源（%s）不支持原生多语句执行，已自动拆分为 %d 条语句逐条执行。", runConfig.Type, len(statements))
+	}
+	return connection.QueryResult{Success: true, Data: resultSets, QueryID: queryID, Message: fallbackMsg}
+}
+
 func (a *App) DBQueryIsolated(config connection.ConnectionConfig, dbName string, query string) connection.QueryResult {
 	runConfig := normalizeRunConfig(config, dbName)
 

internal/app/methods_db_conn_test.go

@@ -0,0 +1,112 @@
+package app
+
+import (
+	"strings"
+	"testing"
+
+	"GoNavi-Wails/internal/connection"
+)
+
+func TestNormalizeTestConnectionConfig_CapsTimeout(t *testing.T) {
+	cfg := connection.ConnectionConfig{Timeout: 60}
+	got := normalizeTestConnectionConfig(cfg)
+	if got.Timeout != testConnectionTimeoutUpperBoundSeconds {
+		t.Fatalf("timeout 应被限制为 %d, got=%d", testConnectionTimeoutUpperBoundSeconds, got.Timeout)
+	}
+}
+
+func TestNormalizeTestConnectionConfig_KeepSmallTimeout(t *testing.T) {
+	cfg := connection.ConnectionConfig{Timeout: 5}
+	got := normalizeTestConnectionConfig(cfg)
+	if got.Timeout != 5 {
+		t.Fatalf("timeout 不应被修改, got=%d", got.Timeout)
+	}
+}
+
+func TestNormalizeTestConnectionConfig_ZeroTimeout(t *testing.T) {
+	cfg := connection.ConnectionConfig{Timeout: 0}
+	got := normalizeTestConnectionConfig(cfg)
+	if got.Timeout != testConnectionTimeoutUpperBoundSeconds {
+		t.Fatalf("零值 timeout 应被修正, got=%d", got.Timeout)
+	}
+}
+
+func TestFormatConnSummary_BasicMySQL(t *testing.T) {
+	cfg := connection.ConnectionConfig{
+		Type:     "mysql",
+		Host:     "127.0.0.1",
+		Port:     3306,
+		User:     "root",
+		Database: "test_db",
+		Timeout:  30,
+	}
+	got := formatConnSummary(cfg)
+	for _, want := range []string{"类型=mysql", "127.0.0.1:3306", "test_db", "root"} {
+		if !strings.Contains(got, want) {
+			t.Fatalf("formatConnSummary 应包含 %q, got=%q", want, got)
+		}
+	}
+}
+
+func TestFormatConnSummary_SQLitePath(t *testing.T) {
+	cfg := connection.ConnectionConfig{
+		Type: "sqlite",
+		Host: "/data/test.db",
+	}
+	got := formatConnSummary(cfg)
+	if !strings.Contains(got, "类型=sqlite") {
+		t.Fatalf("formatConnSummary 缺少类型, got=%q", got)
+	}
+	if !strings.Contains(got, "/data/test.db") {
+		t.Fatalf("formatConnSummary 缺少路径, got=%q", got)
+	}
+}
+
+func TestFormatConnSummary_SSH(t *testing.T) {
+	cfg := connection.ConnectionConfig{
+		Type:   "mysql",
+		Host:   "db.internal",
+		Port:   3306,
+		User:   "app",
+		UseSSH: true,
+		SSH: connection.SSHConfig{
+			Host: "jump.server",
+			Port: 22,
+			User: "admin",
+		},
+	}
+	got := formatConnSummary(cfg)
+	if !strings.Contains(got, "SSH=jump.server:22") {
+		t.Fatalf("formatConnSummary 应包含 SSH 信息, got=%q", got)
+	}
+}
+
+func TestFormatConnSummary_Proxy(t *testing.T) {
+	cfg := connection.ConnectionConfig{
+		Type:     "mysql",
+		Host:     "db.internal",
+		Port:     3306,
+		UseProxy: true,
+		Proxy: connection.ProxyConfig{
+			Type: "socks5",
+			Host: "proxy.local",
+			Port: 1080,
+		},
+	}
+	got := formatConnSummary(cfg)
+	if !strings.Contains(got, "代理=socks5://proxy.local:1080") {
+		t.Fatalf("formatConnSummary 应包含代理信息, got=%q", got)
+	}
+}
+
+func TestFormatConnSummary_DefaultTimeout(t *testing.T) {
+	cfg := connection.ConnectionConfig{
+		Type: "mysql",
+		Host: "localhost",
+		Port: 3306,
+	}
+	got := formatConnSummary(cfg)
+	if !strings.Contains(got, "超时=30s") {
+		t.Fatalf("formatConnSummary 默认超时应为30s, got=%q", got)
+	}
+}

internal/app/methods_driver.go

@@ -353,7 +353,7 @@ func (a *App) SelectDriverDownloadDirectory(currentDir string) connection.QueryR
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 	if strings.TrimSpace(selection) == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 
 	resolved, err := resolveDriverDownloadDirectory(selection)
@@ -392,7 +392,7 @@ func (a *App) SelectDriverPackageFile(currentPath string) connection.QueryResult
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 	if strings.TrimSpace(selection) == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 
 	if abs, err := filepath.Abs(selection); err == nil {
@@ -423,7 +423,7 @@ func (a *App) SelectDriverPackageDirectory(currentPath string) connection.QueryR
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 	if strings.TrimSpace(selection) == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 	if abs, err := filepath.Abs(selection); err == nil {
 		selection = abs

internal/app/methods_file.go

@@ -7,6 +7,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"html"
+	"io"
 	"math"
 	"os"
 	"path/filepath"
@@ -48,7 +49,28 @@ func (a *App) OpenSQLFile() connection.QueryResult {
 	}
 
 	if selection == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
+	}
+
+	// 检查文件大小
+	const maxSQLFileSize int64 = 50 * 1024 * 1024 // 50MB
+	fi, err := os.Stat(selection)
+	if err != nil {
+		return connection.QueryResult{Success: false, Message: fmt.Sprintf("无法读取文件信息: %v", err)}
+	}
+
+	// 大文件：只返回文件路径和大小，不读取内容
+	if fi.Size() > maxSQLFileSize {
+		sizeMB := float64(fi.Size()) / (1024 * 1024)
+		return connection.QueryResult{
+			Success: true,
+			Data: map[string]interface{}{
+				"isLargeFile": true,
+				"filePath":    selection,
+				"fileSize":    fi.Size(),
+				"fileSizeMB":  fmt.Sprintf("%.1f", sizeMB),
+			},
+		}
 	}
 
 	content, err := os.ReadFile(selection)
@@ -59,6 +81,184 @@ func (a *App) OpenSQLFile() connection.QueryResult {
 	return connection.QueryResult{Success: true, Data: string(content)}
 }
 
+// ExecuteSQLFile 在后端流式读取并执行大 SQL 文件，通过事件推送进度。
+// 前端通过 EventsOn("sqlfile:progress", ...) 监听进度。
+func (a *App) ExecuteSQLFile(config connection.ConnectionConfig, dbName string, filePath string, jobID string) connection.QueryResult {
+	if strings.TrimSpace(filePath) == "" {
+		return connection.QueryResult{Success: false, Message: "文件路径为空"}
+	}
+	if strings.TrimSpace(jobID) == "" {
+		jobID = fmt.Sprintf("sqlfile-%d", time.Now().UnixMilli())
+	}
+
+	logger.Warnf("ExecuteSQLFile 开始：file=%s db=%s jobID=%s", filePath, dbName, jobID)
+
+	// 获取数据库连接
+	runConfig := normalizeRunConfig(config, dbName)
+	dbInst, err := a.getDatabase(runConfig)
+	if err != nil {
+		logger.Error(err, "ExecuteSQLFile 获取连接失败：%s", formatConnSummary(runConfig))
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
+
+	// 打开文件
+	f, err := os.Open(filePath)
+	if err != nil {
+		return connection.QueryResult{Success: false, Message: fmt.Sprintf("无法打开文件: %v", err)}
+	}
+	defer f.Close()
+
+	// 获取文件大小用于计算进度
+	fi, _ := f.Stat()
+	totalSize := fi.Size()
+
+	// 设置取消上下文
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	a.queryMu.Lock()
+	a.runningQueries[jobID] = queryContext{
+		cancel:  cancel,
+		started: time.Now(),
+	}
+	a.queryMu.Unlock()
+	defer func() {
+		a.queryMu.Lock()
+		delete(a.runningQueries, jobID)
+		a.queryMu.Unlock()
+	}()
+
+	// 发送进度事件的辅助函数
+	emitProgress := func(status string, executed, failed, total int, bytesRead int64, currentSQL string, errMsg string) {
+		percent := 0.0
+		if totalSize > 0 {
+			percent = float64(bytesRead) / float64(totalSize) * 100
+			if percent > 100 {
+				percent = 100
+			}
+		}
+		runtime.EventsEmit(a.ctx, "sqlfile:progress", map[string]interface{}{
+			"jobId":      jobID,
+			"status":     status,
+			"executed":   executed,
+			"failed":     failed,
+			"total":      total,
+			"percent":    percent,
+			"bytesRead":  bytesRead,
+			"totalBytes": totalSize,
+			"currentSQL": currentSQL,
+			"error":      errMsg,
+		})
+	}
+
+	emitProgress("running", 0, 0, 0, 0, "", "")
+
+	// 使用 countingReader 追踪已读取字节数
+	cr := &countingReader{r: f}
+
+	var executedCount int
+	var failedCount int
+	var errorLogs []string
+	startTime := time.Now()
+
+	_, streamErr := streamSQLFile(cr, func(index int, stmt string) error {
+		// 检查是否已取消
+		select {
+		case <-ctx.Done():
+			return fmt.Errorf("已取消")
+		default:
+		}
+
+		// 执行语句
+		_, execErr := dbInst.Exec(stmt)
+		if execErr != nil {
+			failedCount++
+			snippet := stmt
+			if len(snippet) > 200 {
+				snippet = snippet[:200] + "..."
+			}
+			errLog := fmt.Sprintf("第 %d 条语句执行失败: %v\n  SQL: %s", index+1, execErr, snippet)
+			errorLogs = append(errorLogs, errLog)
+			logger.Warnf("ExecuteSQLFile %s", errLog)
+		} else {
+			executedCount++
+		}
+
+		// 每条语句执行后推送进度（但限频：每 100 条或每秒推一次）
+		total := executedCount + failedCount
+		if total%100 == 0 || total <= 10 {
+			snippet := stmt
+			if len(snippet) > 100 {
+				snippet = snippet[:100] + "..."
+			}
+			emitProgress("running", executedCount, failedCount, total, cr.n, snippet, "")
+		}
+
+		return nil
+	})
+
+	duration := time.Since(startTime)
+
+	if streamErr != nil && streamErr.Error() == "已取消" {
+		emitProgress("cancelled", executedCount, failedCount, executedCount+failedCount, cr.n, "", "用户取消执行")
+		logger.Warnf("ExecuteSQLFile 已取消：executed=%d failed=%d duration=%v", executedCount, failedCount, duration)
+		return connection.QueryResult{
+			Success: false,
+			Message: fmt.Sprintf("执行已取消。已执行 %d 条，失败 %d 条，耗时 %v。", executedCount, failedCount, duration.Round(time.Millisecond)),
+		}
+	}
+
+	if streamErr != nil {
+		emitProgress("error", executedCount, failedCount, executedCount+failedCount, cr.n, "", streamErr.Error())
+		return connection.QueryResult{
+			Success: false,
+			Message: fmt.Sprintf("文件读取错误: %v。已执行 %d 条。", streamErr, executedCount),
+		}
+	}
+
+	emitProgress("done", executedCount, failedCount, executedCount+failedCount, totalSize, "", "")
+
+	summary := fmt.Sprintf("执行完成。成功 %d 条，失败 %d 条，耗时 %v。", executedCount, failedCount, duration.Round(time.Millisecond))
+	if len(errorLogs) > 0 {
+		maxShow := 20
+		if len(errorLogs) < maxShow {
+			maxShow = len(errorLogs)
+		}
+		summary += "\n\n错误详情（前 " + fmt.Sprintf("%d", maxShow) + " 条）：\n" + strings.Join(errorLogs[:maxShow], "\n")
+		if len(errorLogs) > maxShow {
+			summary += fmt.Sprintf("\n...还有 %d 条错误未显示", len(errorLogs)-maxShow)
+		}
+	}
+
+	logger.Warnf("ExecuteSQLFile 完成：executed=%d failed=%d duration=%v", executedCount, failedCount, duration)
+	return connection.QueryResult{Success: failedCount == 0, Message: summary}
+}
+
+// CancelSQLFileExecution 取消正在执行的 SQL 文件任务。
+func (a *App) CancelSQLFileExecution(jobID string) connection.QueryResult {
+	a.queryMu.Lock()
+	defer a.queryMu.Unlock()
+
+	if ctx, exists := a.runningQueries[jobID]; exists {
+		ctx.cancel()
+		delete(a.runningQueries, jobID)
+		return connection.QueryResult{Success: true, Message: "已发送取消请求"}
+	}
+	return connection.QueryResult{Success: false, Message: "未找到该任务"}
+}
+
+// countingReader 包装 io.Reader，追踪已读取的字节数。
+type countingReader struct {
+	r io.Reader
+	n int64
+}
+
+func (cr *countingReader) Read(p []byte) (int, error) {
+	n, err := cr.r.Read(p)
+	cr.n += int64(n)
+	return n, err
+}
+
 func (a *App) ImportConfigFile() connection.QueryResult {
 	selection, err := runtime.OpenFileDialog(a.ctx, runtime.OpenDialogOptions{
 		Title: "Select Config File",
@@ -75,7 +275,7 @@ func (a *App) ImportConfigFile() connection.QueryResult {
 	}
 
 	if selection == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 
 	content, err := os.ReadFile(selection)
@@ -120,7 +320,7 @@ func (a *App) SelectSSHKeyFile(currentPath string) connection.QueryResult {
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 	if strings.TrimSpace(selection) == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 	if abs, err := filepath.Abs(selection); err == nil {
 		selection = abs
@@ -192,7 +392,7 @@ func (a *App) SelectDatabaseFile(currentPath string, driverType string) connecti
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 	if strings.TrimSpace(selection) == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 	if abs, err := filepath.Abs(selection); err == nil {
 		selection = abs
@@ -203,7 +403,7 @@ func (a *App) SelectDatabaseFile(currentPath string, driverType string) connecti
 // PreviewImportFile 解析导入文件，返回字段列表、总行数、前 5 行预览数据
 func (a *App) PreviewImportFile(filePath string) connection.QueryResult {
 	if filePath == "" {
-		return connection.QueryResult{Success: false, Message: "File path required"}
+		return connection.QueryResult{Success: false, Message: "文件路径不能为空"}
 	}
 
 	rows, columns, err := parseImportFile(filePath)
@@ -243,7 +443,7 @@ func (a *App) ImportData(config connection.ConnectionConfig, dbName, tableName s
 	}
 
 	if selection == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 
 	// 返回文件路径供前端预览
@@ -492,7 +692,7 @@ func (a *App) ImportDataWithProgress(config connection.ConnectionConfig, dbName,
 	}
 
 	if len(rows) == 0 {
-		return connection.QueryResult{Success: true, Message: "No data to import"}
+		return connection.QueryResult{Success: true, Message: "无可导入数据"}
 	}
 
 	runConfig := normalizeRunConfig(config, dbName)
@@ -584,7 +784,7 @@ func (a *App) ExportTable(config connection.ConnectionConfig, dbName string, tab
 	})
 
 	if err != nil || filename == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 
 	runConfig := normalizeRunConfig(config, dbName)
@@ -616,7 +816,7 @@ func (a *App) ExportTable(config connection.ConnectionConfig, dbName string, tab
 			return connection.QueryResult{Success: false, Message: err.Error()}
 		}
 
-		return connection.QueryResult{Success: true, Message: "Export successful"}
+		return connection.QueryResult{Success: true, Message: "导出完成"}
 	}
 
 	query := fmt.Sprintf("SELECT * FROM %s", quoteQualifiedIdentByType(runConfig.Type, tableName))
@@ -632,10 +832,10 @@ func (a *App) ExportTable(config connection.ConnectionConfig, dbName string, tab
 	}
 	defer f.Close()
 	if err := writeRowsToFile(f, data, columns, format); err != nil {
-		return connection.QueryResult{Success: false, Message: "Write error: " + err.Error()}
+		return connection.QueryResult{Success: false, Message: "写入失败：" + err.Error()}
 	}
 
-	return connection.QueryResult{Success: true, Message: "Export successful"}
+	return connection.QueryResult{Success: true, Message: "导出完成"}
 }
 
 func (a *App) ExportTablesSQL(config connection.ConnectionConfig, dbName string, tableNames []string, includeData bool) connection.QueryResult {
@@ -648,7 +848,7 @@ func (a *App) ExportTablesDataSQL(config connection.ConnectionConfig, dbName str
 
 func (a *App) exportTablesSQL(config connection.ConnectionConfig, dbName string, tableNames []string, includeSchema bool, includeData bool) connection.QueryResult {
 	if !includeSchema && !includeData {
-		return connection.QueryResult{Success: false, Message: "invalid export mode"}
+		return connection.QueryResult{Success: false, Message: "无效的导出模式"}
 	}
 
 	safeDbName := strings.TrimSpace(dbName)
@@ -671,7 +871,7 @@ func (a *App) exportTablesSQL(config connection.ConnectionConfig, dbName string,
 		DefaultFilename: defaultFilename,
 	})
 	if err != nil || filename == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 
 	runConfig := normalizeRunConfig(config, dbName)
@@ -717,13 +917,13 @@ func (a *App) exportTablesSQL(config connection.ConnectionConfig, dbName string,
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 
-	return connection.QueryResult{Success: true, Message: "Export successful"}
+	return connection.QueryResult{Success: true, Message: "导出完成"}
 }
 
 func (a *App) ExportDatabaseSQL(config connection.ConnectionConfig, dbName string, includeData bool) connection.QueryResult {
 	safeDbName := strings.TrimSpace(dbName)
 	if safeDbName == "" {
-		return connection.QueryResult{Success: false, Message: "dbName required"}
+		return connection.QueryResult{Success: false, Message: "数据库名称不能为空"}
 	}
 	suffix := "schema"
 	if includeData {
@@ -735,7 +935,7 @@ func (a *App) ExportDatabaseSQL(config connection.ConnectionConfig, dbName strin
 		DefaultFilename: fmt.Sprintf("%s_%s.sql", safeDbName, suffix),
 	})
 	if err != nil || filename == "" {
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 
 	runConfig := normalizeRunConfig(config, dbName)
@@ -772,7 +972,92 @@ func (a *App) ExportDatabaseSQL(config connection.ConnectionConfig, dbName strin
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
 
-	return connection.QueryResult{Success: true, Message: "Export successful"}
+	return connection.QueryResult{Success: true, Message: "导出完成"}
+}
+
+// TruncateTables 清空指定表的数据（针对 MySQL 使用 TRUNCATE，MongoDB 使用 delete，否则使用 DELETE）。
+// 注意：MySQL 的 TRUNCATE TABLE 是 DDL 操作，无法事务回滚；批量清空为逐表执行，
+// 如果中途失败，已清空的表无法恢复。错误结果会附带已执行的 SQL 列表供排查。
+func (a *App) TruncateTables(config connection.ConnectionConfig, dbName string, tableNames []string) connection.QueryResult {
+	runConfig := normalizeRunConfig(config, dbName)
+
+	// 参数校验
+	if len(tableNames) == 0 {
+		return connection.QueryResult{Success: false, Message: "未指定要清空的表"}
+	}
+
+	objects := make([]string, 0, len(tableNames))
+	seen := make(map[string]struct{}, len(tableNames))
+	for _, t := range tableNames {
+		tt := strings.TrimSpace(t)
+		if tt == "" {
+			continue
+		}
+		if _, ok := seen[tt]; ok {
+			continue
+		}
+		seen[tt] = struct{}{}
+		objects = append(objects, tt)
+	}
+
+	if len(objects) == 0 {
+		return connection.QueryResult{Success: false, Message: "未指定要清空的表"}
+	}
+	const maxBatchSize = 200
+	if len(objects) > maxBatchSize {
+		return connection.QueryResult{Success: false, Message: fmt.Sprintf("单次最多清空 %d 张表，当前选中 %d 张", maxBatchSize, len(objects))}
+	}
+
+	dbInst, err := a.getDatabase(runConfig)
+	if err != nil {
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
+
+	// 审计日志：记录清空操作的发起
+	logger.Warnf("TruncateTables 开始：%s db=%s tables=%v（共 %d 张）", formatConnSummary(runConfig), dbName, objects, len(objects))
+
+	dbType := strings.ToLower(strings.TrimSpace(runConfig.Type))
+	var executedSQLs []string
+	for i, objectName := range objects {
+		var sql string
+		if dbType == "mysql" || dbType == "mariadb" {
+			sql = fmt.Sprintf("TRUNCATE TABLE %s", quoteQualifiedIdentByType(runConfig.Type, objectName))
+		} else if dbType == "mongodb" {
+			// MongoDB 使用 delete 命令清空集合中的所有文档
+			// deletes 的 limit 为 0 表示删除所有匹配的文档
+			sql = fmt.Sprintf(`{"delete":"%s","deletes":[{"q":{},"limit":0}]}`, objectName)
+		} else {
+			sql = fmt.Sprintf("DELETE FROM %s", quoteQualifiedIdentByType(runConfig.Type, objectName))
+		}
+
+		if _, err := dbInst.Exec(sql); err != nil {
+			logger.Warnf("TruncateTables 第 %d/%d 张表失败：%s table=%s err=%v（已成功清空 %d 张）", i+1, len(objects), formatConnSummary(runConfig), objectName, err, len(executedSQLs))
+			errMsg := fmt.Sprintf("清空 %s 失败: %v", objectName, err)
+			if len(executedSQLs) > 0 {
+				errMsg += fmt.Sprintf("（注意：前 %d 张表已清空且无法恢复）", len(executedSQLs))
+			}
+			return connection.QueryResult{
+				Success: false,
+				Message: errMsg,
+				Data: map[string]interface{}{
+					"executedSQLs": executedSQLs,
+					"count":        len(executedSQLs),
+				},
+			}
+		}
+		executedSQLs = append(executedSQLs, sql)
+	}
+
+	logger.Warnf("TruncateTables 完成：%s db=%s 共清空 %d 张表", formatConnSummary(runConfig), dbName, len(executedSQLs))
+
+	return connection.QueryResult{
+		Success: true,
+		Message: "清空成功",
+		Data: map[string]interface{}{
+			"executedSQLs": executedSQLs,
+			"count":        len(executedSQLs),
+		},
+	}
 }
 
 func quoteIdentByType(dbType string, ident string) string {
@@ -1471,7 +1756,7 @@ func (a *App) ExportData(data []map[string]interface{}, columns []string, defaul
 
 	if err != nil || filename == "" {
 		logger.Infof("ExportData 已取消或未选择文件：err=%v", err)
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 	logger.Infof("ExportData 选定文件：%s", filename)
 
@@ -1482,11 +1767,11 @@ func (a *App) ExportData(data []map[string]interface{}, columns []string, defaul
 	defer f.Close()
 	if err := writeRowsToFile(f, data, columns, format); err != nil {
 		logger.Warnf("ExportData 写入失败：file=%s err=%v", filename, err)
-		return connection.QueryResult{Success: false, Message: "Write error: " + err.Error()}
+		return connection.QueryResult{Success: false, Message: "写入失败：" + err.Error()}
 	}
 
 	logger.Infof("ExportData 完成：file=%s rows=%d", filename, len(data))
-	return connection.QueryResult{Success: true, Message: "Export successful"}
+	return connection.QueryResult{Success: true, Message: "导出完成"}
 }
 
 // ExportQuery exports by executing the provided SELECT query on backend side.
@@ -1494,7 +1779,7 @@ func (a *App) ExportData(data []map[string]interface{}, columns []string, defaul
 func (a *App) ExportQuery(config connection.ConnectionConfig, dbName string, query string, defaultName string, format string) connection.QueryResult {
 	query = strings.TrimSpace(query)
 	if query == "" {
-		return connection.QueryResult{Success: false, Message: "query required"}
+		return connection.QueryResult{Success: false, Message: "查询语句不能为空"}
 	}
 
 	if defaultName == "" {
@@ -1507,7 +1792,7 @@ func (a *App) ExportQuery(config connection.ConnectionConfig, dbName string, que
 	})
 	if err != nil || filename == "" {
 		logger.Infof("ExportQuery 已取消或未选择文件：err=%v", err)
-		return connection.QueryResult{Success: false, Message: "Cancelled"}
+		return connection.QueryResult{Success: false, Message: "已取消"}
 	}
 	logger.Infof("ExportQuery 开始：type=%s db=%s format=%s file=%s sql=%q", strings.TrimSpace(config.Type), strings.TrimSpace(dbName), strings.ToLower(strings.TrimSpace(format)), filename, sqlSnippet(query))
 
@@ -1520,7 +1805,7 @@ func (a *App) ExportQuery(config connection.ConnectionConfig, dbName string, que
 	query = sanitizeSQLForPgLike(runConfig.Type, query)
 	lowerQuery := strings.ToLower(strings.TrimSpace(query))
 	if !(strings.HasPrefix(lowerQuery, "select") || strings.HasPrefix(lowerQuery, "with")) {
-		return connection.QueryResult{Success: false, Message: "Only SELECT/WITH queries are supported"}
+		return connection.QueryResult{Success: false, Message: "仅支持 SELECT/WITH 查询导出"}
 	}
 
 	data, columns, err := queryDataForExport(dbInst, runConfig, query)
@@ -1537,11 +1822,11 @@ func (a *App) ExportQuery(config connection.ConnectionConfig, dbName string, que
 
 	if err := writeRowsToFile(f, data, columns, format); err != nil {
 		logger.Warnf("ExportQuery 写入失败：file=%s err=%v", filename, err)
-		return connection.QueryResult{Success: false, Message: "Write error: " + err.Error()}
+		return connection.QueryResult{Success: false, Message: "写入失败：" + err.Error()}
 	}
 
 	logger.Infof("ExportQuery 完成：file=%s rows=%d cols=%d", filename, len(data), len(columns))
-	return connection.QueryResult{Success: true, Message: "Export successful"}
+	return connection.QueryResult{Success: true, Message: "导出完成"}
 }
 
 func queryDataForExport(dbInst db.Database, config connection.ConnectionConfig, query string) ([]map[string]interface{}, []string, error) {

internal/app/methods_redis.go

@@ -453,6 +453,23 @@ func (a *App) RedisRenameKey(config connection.ConnectionConfig, oldKey, newKey
 	return connection.QueryResult{Success: true, Message: "重命名成功"}
 }
 
+// RedisKeyExists checks whether a key already exists
+func (a *App) RedisKeyExists(config connection.ConnectionConfig, key string) connection.QueryResult {
+	config.Type = "redis"
+	client, err := a.getRedisClient(config)
+	if err != nil {
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
+
+	exists, err := client.KeyExists(key)
+	if err != nil {
+		logger.Error(err, "RedisKeyExists 检查失败：key=%s", key)
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
+
+	return connection.QueryResult{Success: true, Data: map[string]bool{"exists": exists}}
+}
+
 // RedisDeleteHashField deletes fields from a hash
 func (a *App) RedisDeleteHashField(config connection.ConnectionConfig, key string, fields []string) connection.QueryResult {
 	config.Type = "redis"

internal/app/methods_update.go

@@ -957,8 +957,25 @@ if %ERRORLEVEL%==0 (
 )
 call :log host process exited
 
+rem -- Win10 needs extra time for kernel to release exe file handles --
+timeout /t 3 /nobreak >nul
+call :log cooldown finished, starting file replace
+
 set /a RETRY=0
 :move_retry
+call :log attempt !RETRY!: trying rename-then-copy strategy
+ren "%TARGET%" "%TARGET_NAME%.old" >> "%LOG_FILE%" 2>&1
+if %ERRORLEVEL%==0 (
+  copy /Y "%SOURCE_EXE%" "%TARGET%" >> "%LOG_FILE%" 2>&1
+  if !ERRORLEVEL!==0 (
+    del /F /Q "%TARGET%.old" >> "%LOG_FILE%" 2>&1
+    goto move_done
+  )
+  call :log copy after rename failed, restoring old file
+  ren "%TARGET_NAME%.old" "%TARGET_NAME%" >> "%LOG_FILE%" 2>&1
+)
+
+call :log rename strategy failed, trying direct move
 move /Y "%SOURCE_EXE%" "%TARGET%" >> "%LOG_FILE%" 2>&1
 if %ERRORLEVEL%==0 goto move_done
 
@@ -966,8 +983,13 @@ copy /Y "%SOURCE_EXE%" "%TARGET%" >> "%LOG_FILE%" 2>&1
 if %ERRORLEVEL%==0 goto move_done
 
 set /a RETRY+=1
-if !RETRY! LSS 20 (
-  timeout /t 1 /nobreak >nul
+if !RETRY! LSS 15 (
+  set /a WAIT=1
+  if !RETRY! GEQ 3 set /a WAIT=2
+  if !RETRY! GEQ 6 set /a WAIT=3
+  if !RETRY! GEQ 9 set /a WAIT=5
+  call :log waiting !WAIT! seconds before retry
+  timeout /t !WAIT! /nobreak >nul
   goto move_retry
 )
 
@@ -975,6 +997,7 @@ call :log replace failed after retries (portable mode, no elevation): check dire
 exit /b 1
 
 :move_done
+del /F /Q "%TARGET%.old" >> "%LOG_FILE%" 2>&1
 start "" "%TARGET%" >> "%LOG_FILE%" 2>&1
 if %ERRORLEVEL% NEQ 0 (
   call :log cmd start failed, trying powershell Start-Process

internal/app/methods_update_windows_script_test.go

@@ -38,3 +38,37 @@ func TestBuildWindowsScriptKeepsBatchForSyntax(t *testing.T) {
 		}
 	}
 }
+
+func TestBuildWindowsScriptWin10Fixes(t *testing.T) {
+	script := buildWindowsScript(
+		`C:\tmp\GoNavi-v0.5.0-windows-amd64.exe`,
+		`C:\Program Files\GoNavi\GoNavi.exe`,
+		`C:\Program Files\GoNavi\.gonavi-update-windows-v0.5.0`,
+		`C:\Program Files\GoNavi\logs\update-install.log`,
+		99999,
+	)
+
+	// 验证 Win10 关键修复点
+	win10Fixes := []struct {
+		desc  string
+		token string
+	}{
+		{"cooldown after process exit", `timeout /t 3 /nobreak >nul`},
+		{"cooldown log", `call :log cooldown finished, starting file replace`},
+		{"rename-before-replace strategy", `ren "%TARGET%" "%TARGET_NAME%.old"`},
+		{"copy after rename", `copy /Y "%SOURCE_EXE%" "%TARGET%"`},
+		{"restore on copy failure", `ren "%TARGET_NAME%.old" "%TARGET_NAME%"`},
+		{"direct move fallback", `call :log rename strategy failed, trying direct move`},
+		{"exponential backoff tier 1", `if !RETRY! GEQ 3 set /a WAIT=2`},
+		{"exponential backoff tier 2", `if !RETRY! GEQ 6 set /a WAIT=3`},
+		{"exponential backoff tier 3", `if !RETRY! GEQ 9 set /a WAIT=5`},
+		{"retry limit 15", `if !RETRY! LSS 15`},
+		{"cleanup old file", `del /F /Q "%TARGET%.old"`},
+	}
+	for _, fix := range win10Fixes {
+		if !strings.Contains(script, fix.token) {
+			t.Errorf("Win10 fix missing [%s]: expected token: %s", fix.desc, fix.token)
+		}
+	}
+}
+

internal/app/sql_split.go

@@ -0,0 +1,175 @@
+package app
+
+import "strings"
+
+// splitSQLStatements 按分号拆分 SQL 文本为独立语句。
+// 正确处理单引号/双引号/反引号字符串、行注释（-- / #）、块注释（/* */）和
+// PostgreSQL/Kingbase 的 $$...$$ dollar-quoting，避免在这些上下文中错误拆分。
+// 同时支持 SQL 标准的转义单引号（两个连续单引号 '' 表示字面量引号）。
+func splitSQLStatements(sql string) []string {
+	text := strings.ReplaceAll(sql, "\r\n", "\n")
+	var statements []string
+
+	var cur strings.Builder
+	inSingle := false
+	inDouble := false
+	inBacktick := false
+	escaped := false
+	inLineComment := false
+	inBlockComment := false
+	var dollarTag string // postgres/kingbase: $$...$$ or $tag$...$tag$
+
+	push := func() {
+		s := strings.TrimSpace(cur.String())
+		if s != "" {
+			statements = append(statements, s)
+		}
+		cur.Reset()
+	}
+
+	for i := 0; i < len(text); i++ {
+		ch := text[i]
+		next := byte(0)
+		if i+1 < len(text) {
+			next = text[i+1]
+		}
+
+		// 行注释
+		if inLineComment {
+			if ch == '\n' {
+				inLineComment = false
+			}
+			cur.WriteByte(ch)
+			continue
+		}
+
+		// 块注释
+		if inBlockComment {
+			cur.WriteByte(ch)
+			if ch == '*' && next == '/' {
+				cur.WriteByte('/')
+				i++
+				inBlockComment = false
+			}
+			continue
+		}
+
+		// Dollar-quoting
+		if dollarTag != "" {
+			if strings.HasPrefix(text[i:], dollarTag) {
+				cur.WriteString(dollarTag)
+				i += len(dollarTag) - 1
+				dollarTag = ""
+			} else {
+				cur.WriteByte(ch)
+			}
+			continue
+		}
+
+		// 转义字符（反斜杠转义，MySQL 风格）
+		if escaped {
+			escaped = false
+			cur.WriteByte(ch)
+			continue
+		}
+		if (inSingle || inDouble) && ch == '\\' {
+			escaped = true
+			cur.WriteByte(ch)
+			continue
+		}
+
+		// 字符串开闭
+		if !inDouble && !inBacktick && ch == '\'' {
+			if inSingle && next == '\'' {
+				// SQL 标准转义：两个连续单引号 '' 表示字面量引号，保持在引号内
+				cur.WriteByte(ch)
+				cur.WriteByte(next)
+				i++
+				continue
+			}
+			inSingle = !inSingle
+			cur.WriteByte(ch)
+			continue
+		}
+		if !inSingle && !inBacktick && ch == '"' {
+			inDouble = !inDouble
+			cur.WriteByte(ch)
+			continue
+		}
+		if !inSingle && !inDouble && ch == '`' {
+			inBacktick = !inBacktick
+			cur.WriteByte(ch)
+			continue
+		}
+
+		// 在引号/反引号内部不做任何判断
+		if inSingle || inDouble || inBacktick {
+			cur.WriteByte(ch)
+			continue
+		}
+
+		// 行注释开始
+		if ch == '-' && next == '-' {
+			inLineComment = true
+			cur.WriteByte(ch)
+			continue
+		}
+		if ch == '#' {
+			inLineComment = true
+			cur.WriteByte(ch)
+			continue
+		}
+
+		// 块注释开始
+		if ch == '/' && next == '*' {
+			inBlockComment = true
+			cur.WriteString("/*")
+			i++
+			continue
+		}
+
+		// Dollar-quoting 开始
+		if ch == '$' {
+			if tag := parseSQLDollarTag(text[i:]); tag != "" {
+				dollarTag = tag
+				cur.WriteString(tag)
+				i += len(tag) - 1
+				continue
+			}
+		}
+
+		// 分号分隔（支持全角分号"；"）
+		if ch == ';' {
+			push()
+			continue
+		}
+		// 全角分号 UTF-8 序列: 0xEF 0xBC 0x9B
+		if ch == 0xEF && i+2 < len(text) && text[i+1] == 0xBC && text[i+2] == 0x9B {
+			push()
+			i += 2
+			continue
+		}
+
+		cur.WriteByte(ch)
+	}
+
+	push()
+	return statements
+}
+
+// parseSQLDollarTag 解析 PostgreSQL/Kingbase 的 dollar-quoting 标签。
+func parseSQLDollarTag(s string) string {
+	if len(s) < 2 || s[0] != '$' {
+		return ""
+	}
+	for i := 1; i < len(s); i++ {
+		c := s[i]
+		if c == '$' {
+			return s[:i+1]
+		}
+		if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_') {
+			return ""
+		}
+	}
+	return ""
+}

internal/app/sql_split_stream.go

@@ -0,0 +1,209 @@
+package app
+
+import (
+	"bufio"
+	"io"
+	"strings"
+)
+
+// sqlStreamSplitter 是一个流式 SQL 语句拆分器，适用于处理大文件。
+// 调用方通过 Feed(chunk) 逐块喂入数据，通过 Flush() 获取最后一条残余语句。
+// 内部维护与 splitSQLStatements 完全一致的状态机逻辑。
+type sqlStreamSplitter struct {
+	cur          strings.Builder
+	inSingle     bool
+	inDouble     bool
+	inBacktick   bool
+	escaped      bool
+	inLineComment  bool
+	inBlockComment bool
+	dollarTag    string
+}
+
+// Feed 将一个 chunk 喂入拆分器，返回在此 chunk 中完成的 SQL 语句列表。
+func (s *sqlStreamSplitter) Feed(chunk []byte) []string {
+	var statements []string
+	text := string(chunk)
+
+	for i := 0; i < len(text); i++ {
+		ch := text[i]
+		next := byte(0)
+		if i+1 < len(text) {
+			next = text[i+1]
+		}
+
+		// 行注释
+		if s.inLineComment {
+			if ch == '\n' {
+				s.inLineComment = false
+			}
+			s.cur.WriteByte(ch)
+			continue
+		}
+
+		// 块注释
+		if s.inBlockComment {
+			s.cur.WriteByte(ch)
+			if ch == '*' && next == '/' {
+				s.cur.WriteByte('/')
+				i++
+				s.inBlockComment = false
+			}
+			continue
+		}
+
+		// Dollar-quoting
+		if s.dollarTag != "" {
+			if strings.HasPrefix(text[i:], s.dollarTag) {
+				s.cur.WriteString(s.dollarTag)
+				i += len(s.dollarTag) - 1
+				s.dollarTag = ""
+			} else {
+				s.cur.WriteByte(ch)
+			}
+			continue
+		}
+
+		// 转义字符
+		if s.escaped {
+			s.escaped = false
+			s.cur.WriteByte(ch)
+			continue
+		}
+		if (s.inSingle || s.inDouble) && ch == '\\' {
+			s.escaped = true
+			s.cur.WriteByte(ch)
+			continue
+		}
+
+		// 字符串开闭
+		if !s.inDouble && !s.inBacktick && ch == '\'' {
+			if s.inSingle && next == '\'' {
+				// SQL 标准转义：两个连续单引号
+				s.cur.WriteByte(ch)
+				s.cur.WriteByte(next)
+				i++
+				continue
+			}
+			s.inSingle = !s.inSingle
+			s.cur.WriteByte(ch)
+			continue
+		}
+		if !s.inSingle && !s.inBacktick && ch == '"' {
+			s.inDouble = !s.inDouble
+			s.cur.WriteByte(ch)
+			continue
+		}
+		if !s.inSingle && !s.inDouble && ch == '`' {
+			s.inBacktick = !s.inBacktick
+			s.cur.WriteByte(ch)
+			continue
+		}
+
+		// 在引号/反引号内部不做任何判断
+		if s.inSingle || s.inDouble || s.inBacktick {
+			s.cur.WriteByte(ch)
+			continue
+		}
+
+		// 行注释开始
+		if ch == '-' && next == '-' {
+			s.inLineComment = true
+			s.cur.WriteByte(ch)
+			continue
+		}
+		if ch == '#' {
+			s.inLineComment = true
+			s.cur.WriteByte(ch)
+			continue
+		}
+
+		// 块注释开始
+		if ch == '/' && next == '*' {
+			s.inBlockComment = true
+			s.cur.WriteString("/*")
+			i++
+			continue
+		}
+
+		// Dollar-quoting 开始
+		if ch == '$' {
+			if tag := parseSQLDollarTag(text[i:]); tag != "" {
+				s.dollarTag = tag
+				s.cur.WriteString(tag)
+				i += len(tag) - 1
+				continue
+			}
+		}
+
+		// 分号分隔
+		if ch == ';' {
+			stmt := strings.TrimSpace(s.cur.String())
+			if stmt != "" {
+				statements = append(statements, stmt)
+			}
+			s.cur.Reset()
+			continue
+		}
+		// 全角分号
+		if ch == 0xEF && i+2 < len(text) && text[i+1] == 0xBC && text[i+2] == 0x9B {
+			stmt := strings.TrimSpace(s.cur.String())
+			if stmt != "" {
+				statements = append(statements, stmt)
+			}
+			s.cur.Reset()
+			i += 2
+			continue
+		}
+
+		s.cur.WriteByte(ch)
+	}
+
+	return statements
+}
+
+// Flush 返回缓冲区中剩余的不完整语句（文件结束时调用）。
+func (s *sqlStreamSplitter) Flush() string {
+	stmt := strings.TrimSpace(s.cur.String())
+	s.cur.Reset()
+	return stmt
+}
+
+// streamSQLFile 从 reader 中流式读取 SQL 并逐条回调。
+// onStatement 返回 error 时停止读取并返回该 error。
+// 返回总处理语句数和可能的错误。
+func streamSQLFile(reader io.Reader, onStatement func(index int, stmt string) error) (int, error) {
+	splitter := &sqlStreamSplitter{}
+	scanner := bufio.NewScanner(reader)
+	// 设置最大 token 为 4MB，处理超长单行
+	const maxLineSize = 4 * 1024 * 1024
+	scanner.Buffer(make([]byte, 0, 64*1024), maxLineSize)
+
+	count := 0
+	for scanner.Scan() {
+		line := scanner.Bytes()
+		// 保持换行符，因为行注释依赖 \n 来结束
+		lineWithNewline := append(line, '\n')
+		stmts := splitter.Feed(lineWithNewline)
+		for _, stmt := range stmts {
+			if err := onStatement(count, stmt); err != nil {
+				return count, err
+			}
+			count++
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		return count, err
+	}
+
+	// 处理文件末尾不以分号结尾的最后一条语句
+	if last := splitter.Flush(); last != "" {
+		if err := onStatement(count, last); err != nil {
+			return count, err
+		}
+		count++
+	}
+
+	return count, nil
+}

internal/app/sql_split_test.go

@@ -0,0 +1,113 @@
+package app
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestSplitSQLStatements_BasicSplit(t *testing.T) {
+	input := "SELECT 1; SELECT 2; SELECT 3"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT 1", "SELECT 2", "SELECT 3"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_QuotedSemicolon(t *testing.T) {
+	input := `SELECT 'hello;world'; SELECT 2`
+	got := splitSQLStatements(input)
+	want := []string{`SELECT 'hello;world'`, "SELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_LineComment(t *testing.T) {
+	input := "SELECT 1; -- this is a comment;\nSELECT 2"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT 1", "-- this is a comment;\nSELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_BlockComment(t *testing.T) {
+	input := "SELECT /* ; */ 1; SELECT 2"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT /* ; */ 1", "SELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_EmptyInput(t *testing.T) {
+	got := splitSQLStatements("")
+	if len(got) != 0 {
+		t.Errorf("splitSQLStatements(\"\") = %v, want empty slice", got)
+	}
+}
+
+func TestSplitSQLStatements_SingleStatement(t *testing.T) {
+	input := "SELECT * FROM users WHERE id = 1"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT * FROM users WHERE id = 1"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_DollarQuoting(t *testing.T) {
+	input := "SELECT $tag$hello;world$tag$; SELECT 2"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT $tag$hello;world$tag$", "SELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_FullWidthSemicolon(t *testing.T) {
+	input := "SELECT 1；SELECT 2"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT 1", "SELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_Backtick(t *testing.T) {
+	input := "SELECT `col;name` FROM t; SELECT 2"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT `col;name` FROM t", "SELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_TrailingSemicolon(t *testing.T) {
+	input := "SELECT 1; SELECT 2;"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT 1", "SELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_SQLEscapedQuote(t *testing.T) {
+	input := "SELECT 'it''s a test'; SELECT 2"
+	got := splitSQLStatements(input)
+	want := []string{"SELECT 'it''s a test'", "SELECT 2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+
+func TestSplitSQLStatements_SQLEscapedQuoteMultiple(t *testing.T) {
+	input := "INSERT INTO t VALUES ('O''Brien', 'it''s OK'); SELECT 1"
+	got := splitSQLStatements(input)
+	want := []string{"INSERT INTO t VALUES ('O''Brien', 'it''s OK')", "SELECT 1"}
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("splitSQLStatements(%q) = %v, want %v", input, got, want)
+	}
+}
+

internal/connection/types.go

@@ -1,6 +1,6 @@
 package connection
 
-// SSHConfig holds SSH connection details
+// SSHConfig 存储 SSH 隧道连接配置。
 type SSHConfig struct {
 	Host     string `json:"host"`
 	Port     int    `json:"port"`
@@ -9,7 +9,7 @@ type SSHConfig struct {
 	KeyPath  string `json:"keyPath"`
 }
 
-// ProxyConfig holds proxy connection details
+// ProxyConfig 存储代理连接配置。
 type ProxyConfig struct {
 	Type     string `json:"type"` // socks5 | http
 	Host     string `json:"host"`
@@ -18,7 +18,7 @@ type ProxyConfig struct {
 	Password string `json:"password,omitempty"`
 }
 
-// HTTPTunnelConfig holds independent HTTP CONNECT tunnel details
+// HTTPTunnelConfig 存储 HTTP CONNECT 隧道配置。
 type HTTPTunnelConfig struct {
 	Host     string `json:"host"`
 	Port     int    `json:"port"`
@@ -26,7 +26,7 @@ type HTTPTunnelConfig struct {
 	Password string `json:"password,omitempty"`
 }
 
-// ConnectionConfig holds database connection details including SSH
+// ConnectionConfig 存储数据库连接的完整配置，包括 SSH、代理、SSL 等网络层设置。
 type ConnectionConfig struct {
 	Type                 string           `json:"type"`
 	Host                 string           `json:"host"`
@@ -63,7 +63,13 @@ type ConnectionConfig struct {
 	MongoReplicaPassword string           `json:"mongoReplicaPassword,omitempty"` // MongoDB replica auth password
 }
 
-// QueryResult is the standard response format for Wails methods
+// ResultSetData 表示一个查询结果集（行 + 列名），用于多结果集场景。
+type ResultSetData struct {
+	Rows    []map[string]interface{} `json:"rows"`
+	Columns []string                 `json:"columns"`
+}
+
+// QueryResult 是 Wails 绑定方法的统一响应格式，前端通过此结构体接收后端结果。
 type QueryResult struct {
 	Success bool        `json:"success"`
 	Message string      `json:"message"`
@@ -72,7 +78,7 @@ type QueryResult struct {
 	QueryID string      `json:"queryId,omitempty"` // Unique ID for query cancellation
 }
 
-// ColumnDefinition represents a table column
+// ColumnDefinition 描述表的一个列定义。
 type ColumnDefinition struct {
 	Name     string  `json:"name"`
 	Type     string  `json:"type"`
@@ -83,7 +89,7 @@ type ColumnDefinition struct {
 	Comment  string  `json:"comment"`
 }
 
-// IndexDefinition represents a table index
+// IndexDefinition 描述表的一个索引定义。
 type IndexDefinition struct {
 	Name       string `json:"name"`
 	ColumnName string `json:"columnName"`
@@ -93,7 +99,7 @@ type IndexDefinition struct {
 	SubPart    int    `json:"subPart,omitempty"`
 }
 
-// ForeignKeyDefinition represents a foreign key
+// ForeignKeyDefinition 描述表的一个外键定义。
 type ForeignKeyDefinition struct {
 	Name           string `json:"name"`
 	ColumnName     string `json:"columnName"`
@@ -102,7 +108,7 @@ type ForeignKeyDefinition struct {
 	ConstraintName string `json:"constraintName"`
 }
 
-// TriggerDefinition represents a trigger
+// TriggerDefinition 描述表的一个触发器定义。
 type TriggerDefinition struct {
 	Name      string `json:"name"`
 	Timing    string `json:"timing"` // BEFORE/AFTER
@@ -110,26 +116,27 @@ type TriggerDefinition struct {
 	Statement string `json:"statement"`
 }
 
-// ColumnDefinitionWithTable represents a column with its table name (for search/autocomplete)
+// ColumnDefinitionWithTable 带有表名标识的列定义，用于跨表搜索和 SQL 自动补全。
 type ColumnDefinitionWithTable struct {
 	TableName string `json:"tableName"`
 	Name      string `json:"name"`
 	Type      string `json:"type"`
 }
 
-// UpdateRow represents a row update with keys (WHERE) and values (SET)
+// UpdateRow 表示一行更新操作，Keys 为 WHERE 条件，Values 为 SET 值。
 type UpdateRow struct {
 	Keys   map[string]interface{} `json:"keys"`
 	Values map[string]interface{} `json:"values"`
 }
 
-// ChangeSet represents a batch of changes
+// ChangeSet 表示一组批量变更，包含新增、修改和删除操作。
 type ChangeSet struct {
 	Inserts []map[string]interface{} `json:"inserts"`
 	Updates []UpdateRow              `json:"updates"`
 	Deletes []map[string]interface{} `json:"deletes"`
 }
 
+// MongoMemberInfo 描述 MongoDB 副本集成员的信息。
 type MongoMemberInfo struct {
 	Host      string `json:"host"`
 	Role      string `json:"role"`

internal/db/clickhouse_impl.go

@@ -271,7 +271,7 @@ func (c *ClickHouseDB) Close() error {
 
 func (c *ClickHouseDB) Ping() error {
 	if c.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := c.pingTimeout
 	if timeout <= 0 {
@@ -284,7 +284,7 @@ func (c *ClickHouseDB) Ping() error {
 
 func (c *ClickHouseDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if c.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 	rows, err := c.conn.QueryContext(ctx, query)
 	if err != nil {
@@ -296,7 +296,7 @@ func (c *ClickHouseDB) QueryContext(ctx context.Context, query string) ([]map[st
 
 func (c *ClickHouseDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if c.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 	rows, err := c.conn.Query(query)
 	if err != nil {
@@ -308,7 +308,7 @@ func (c *ClickHouseDB) Query(query string) ([]map[string]interface{}, []string,
 
 func (c *ClickHouseDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if c.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := c.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -319,7 +319,7 @@ func (c *ClickHouseDB) ExecContext(ctx context.Context, query string) (int64, er
 
 func (c *ClickHouseDB) Exec(query string) (int64, error) {
 	if c.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := c.conn.Exec(query)
 	if err != nil {
@@ -404,7 +404,7 @@ func (c *ClickHouseDB) GetCreateStatement(dbName, tableName string) (string, err
 		return "", err
 	}
 	if len(data) == 0 {
-		return "", fmt.Errorf("create statement not found")
+		return "", fmt.Errorf("未找到建表语句")
 	}
 	row := data[0]
 	if val, ok := getClickHouseValueFromRow(row, "statement", "create_statement", "sql", "query"); ok {
@@ -427,7 +427,7 @@ func (c *ClickHouseDB) GetCreateStatement(dbName, tableName string) (string, err
 	if longest != "" {
 		return longest, nil
 	}
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (c *ClickHouseDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
@@ -582,7 +582,7 @@ func (c *ClickHouseDB) GetTriggers(dbName, tableName string) ([]connection.Trigg
 func (c *ClickHouseDB) resolveDatabaseAndTable(dbName, tableName string) (string, string, error) {
 	rawTable := strings.TrimSpace(tableName)
 	if rawTable == "" {
-		return "", "", fmt.Errorf("table name required")
+		return "", "", fmt.Errorf("表名不能为空")
 	}
 
 	resolvedDB := strings.TrimSpace(dbName)
@@ -603,7 +603,7 @@ func (c *ClickHouseDB) resolveDatabaseAndTable(dbName, tableName string) (string
 		resolvedDB = defaultClickHouseDatabase
 	}
 	if resolvedTable == "" {
-		return "", "", fmt.Errorf("table name required")
+		return "", "", fmt.Errorf("表名不能为空")
 	}
 	return resolvedDB, resolvedTable, nil
 }
@@ -682,7 +682,7 @@ func isClickHouseTruthy(value interface{}) bool {
 
 func (c *ClickHouseDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if c.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	database, table, err := c.resolveDatabaseAndTable(c.database, tableName)
@@ -723,7 +723,7 @@ func (c *ClickHouseDB) ApplyChanges(tableName string, changes connection.ChangeS
 			continue
 		}
 		if _, err := c.conn.Exec(query); err != nil {
-			return fmt.Errorf("insert error: %v; sql=%s", err, query)
+			return fmt.Errorf("插入失败：%v; sql=%s", err, query)
 		}
 	}
 	return nil

internal/db/custom_impl.go

@@ -47,7 +47,7 @@ func (c *CustomDB) Close() error {
 
 func (c *CustomDB) Ping() error {
 	if c.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := c.pingTimeout
 	if timeout <= 0 {
@@ -60,7 +60,7 @@ func (c *CustomDB) Ping() error {
 
 func (c *CustomDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if c.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := c.conn.QueryContext(ctx, query)
@@ -74,7 +74,7 @@ func (c *CustomDB) QueryContext(ctx context.Context, query string) ([]map[string
 
 func (c *CustomDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if c.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := c.conn.Query(query)
@@ -87,7 +87,7 @@ func (c *CustomDB) Query(query string) ([]map[string]interface{}, []string, erro
 
 func (c *CustomDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if c.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := c.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -98,7 +98,7 @@ func (c *CustomDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (c *CustomDB) Exec(query string) (int64, error) {
 	if c.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := c.conn.Exec(query)
 	if err != nil {
@@ -249,7 +249,7 @@ func (c *CustomDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDe
 
 func (c *CustomDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if c.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := c.conn.Begin()
@@ -321,7 +321,7 @@ func (c *CustomDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -349,12 +349,12 @@ func (c *CustomDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -378,7 +378,7 @@ func (c *CustomDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/dameng_impl.go

@@ -143,7 +143,7 @@ func (d *DamengDB) Close() error {
 
 func (d *DamengDB) Ping() error {
 	if d.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := d.pingTimeout
 	if timeout <= 0 {
@@ -156,7 +156,7 @@ func (d *DamengDB) Ping() error {
 
 func (d *DamengDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if d.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := d.conn.QueryContext(ctx, query)
@@ -170,7 +170,7 @@ func (d *DamengDB) QueryContext(ctx context.Context, query string) ([]map[string
 
 func (d *DamengDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if d.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := d.conn.Query(query)
@@ -183,7 +183,7 @@ func (d *DamengDB) Query(query string) ([]map[string]interface{}, []string, erro
 
 func (d *DamengDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if d.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := d.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -194,7 +194,7 @@ func (d *DamengDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (d *DamengDB) Exec(query string) (int64, error) {
 	if d.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := d.conn.Exec(query)
 	if err != nil {
@@ -260,7 +260,7 @@ func (d *DamengDB) GetCreateStatement(dbName, tableName string) (string, error)
 			return fmt.Sprintf("%v", val), nil
 		}
 	}
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (d *DamengDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
@@ -390,7 +390,7 @@ func (d *DamengDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDe
 
 func (d *DamengDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if d.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := d.conn.Begin()
@@ -438,7 +438,7 @@ func (d *DamengDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -466,12 +466,12 @@ func (d *DamengDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -495,7 +495,7 @@ func (d *DamengDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/database.go

@@ -2,27 +2,58 @@ package db
 
 import (
 	"GoNavi-Wails/internal/connection"
+	"context"
 	"fmt"
 	"strings"
 )
 
+// Database 定义了统一的数据源访问接口。
+// 所有数据库驱动（MySQL、PostgreSQL、Oracle 等）均需实现此接口。
+// 方法调用方可通过 NewDatabase 工厂函数获取对应驱动的实例。
 type Database interface {
+	// Connect 根据连接配置建立数据库连接。
 	Connect(config connection.ConnectionConfig) error
+	// Close 关闭数据库连接并释放底层资源。
 	Close() error
+	// Ping 测试连接是否仍然可用。
 	Ping() error
+	// Query 执行查询语句，返回结果行（列名→值映射）和列名列表。
 	Query(query string) ([]map[string]interface{}, []string, error)
+	// Exec 执行非查询语句（INSERT/UPDATE/DELETE 等），返回受影响行数。
 	Exec(query string) (int64, error)
+	// GetDatabases 返回当前连接可访问的数据库列表。
 	GetDatabases() ([]string, error)
+	// GetTables 返回指定数据库下的表列表。
 	GetTables(dbName string) ([]string, error)
+	// GetCreateStatement 返回指定表的建表 DDL 语句。
 	GetCreateStatement(dbName, tableName string) (string, error)
+	// GetColumns 返回指定表的列定义列表。
 	GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error)
+	// GetAllColumns 返回指定数据库下所有表的列定义（含表名标识）。
 	GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error)
+	// GetIndexes 返回指定表的索引定义列表。
 	GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error)
+	// GetForeignKeys 返回指定表的外键定义列表。
 	GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error)
+	// GetTriggers 返回指定表的触发器定义列表。
 	GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error)
 }
 
+// MultiResultQuerier 是可选接口，支持多结果集的驱动实现此接口。
+// 执行可能包含多条 SQL 语句的查询，返回所有结果集。
+type MultiResultQuerier interface {
+	QueryMulti(query string) ([]connection.ResultSetData, error)
+}
+
+// MultiResultQuerierContext 是带 context 的多结果集查询接口。
+type MultiResultQuerierContext interface {
+	QueryMultiContext(ctx context.Context, query string) ([]connection.ResultSetData, error)
+}
+
+// BatchApplier 定义了批量变更提交接口。
+// 支持批量编辑的驱动实现此接口，用于一次性提交前端 DataGrid 中的增删改操作。
 type BatchApplier interface {
+	// ApplyChanges 将一组变更（新增、修改、删除）批量提交到指定表。
 	ApplyChanges(tableName string, changes connection.ChangeSet) error
 }
 
@@ -72,7 +103,9 @@ func normalizeDatabaseType(dbType string) string {
 	}
 }
 
-// Factory
+// NewDatabase 根据数据库类型创建对应的 Database 实例。
+// dbType 为数据库类型标识（如 "mysql"、"postgres"、"oracle" 等），大小写不敏感。
+// 如果指定类型未注册，返回错误。
 func NewDatabase(dbType string) (Database, error) {
 	normalized := normalizeDatabaseType(dbType)
 	if normalized == "" {
@@ -80,7 +113,7 @@ func NewDatabase(dbType string) (Database, error) {
 	}
 	factory, ok := databaseFactories[normalized]
 	if !ok {
-		return nil, fmt.Errorf("unsupported database type: %s", dbType)
+		return nil, fmt.Errorf("不支持的数据库类型：%s", dbType)
 	}
 	return factory(), nil
 }

internal/db/diros_impl.go

@@ -151,7 +151,7 @@ func (d *DirosDB) getDSN(config connection.ConnectionConfig) (string, error) {
 	tlsMode := resolveMySQLTLSMode(config)
 
 	return fmt.Sprintf(
-		"%s:%s@%s(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds&tls=%s",
+		"%s:%s@%s(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds&tls=%s&multiStatements=true",
 		config.User, config.Password, protocol, address, database, timeout, url.QueryEscape(tlsMode),
 	), nil
 }

internal/db/driver_support.go

@@ -8,6 +8,7 @@ import (
 	"sync"
 )
 
+// coreBuiltinDrivers 是始终内置可用的核心驱动，无需额外安装即可使用。
 var coreBuiltinDrivers = map[string]struct{}{
 	"mysql":    {},
 	"redis":    {},
@@ -91,6 +92,8 @@ func driverDisplayName(driverType string) string {
 	}
 }
 
+// IsOptionalGoDriver 返回指定驱动类型是否为可选的纯 Go 驱动。
+// 可选驱动需要用户在驱动管理界面点击“安装启用”后才能使用。
 func IsOptionalGoDriver(driverType string) bool {
 	_, ok := optionalGoDrivers[normalizeRuntimeDriverType(driverType)]
 	return ok
@@ -100,6 +103,7 @@ func IsOptionalGoDriverBuildIncluded(driverType string) bool {
 	return optionalGoDriverBuildIncluded(normalizeRuntimeDriverType(driverType))
 }
 
+// IsBuiltinDriver 返回指定驱动类型是否为核心内置驱动（始终可用，无需安装）。
 func IsBuiltinDriver(driverType string) bool {
 	_, ok := coreBuiltinDrivers[normalizeRuntimeDriverType(driverType)]
 	return ok
@@ -146,6 +150,8 @@ func currentExternalDriverDownloadDirectory() string {
 	return defaultExternalDriverDownloadDirectory()
 }
 
+// SetExternalDriverDownloadDirectory 设置可选驱动的下载存储目录。
+// 如果路径解析失败，会回退到默认目录（~/.gonavi/drivers）。
 func SetExternalDriverDownloadDirectory(downloadDir string) {
 	root, err := resolveExternalDriverRoot(downloadDir)
 	if err != nil {

internal/db/duckdb_impl.go

@@ -55,7 +55,7 @@ func (d *DuckDB) Close() error {
 
 func (d *DuckDB) Ping() error {
 	if d.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := d.pingTimeout
 	if timeout <= 0 {
@@ -68,7 +68,7 @@ func (d *DuckDB) Ping() error {
 
 func (d *DuckDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if d.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 	rows, err := d.conn.QueryContext(ctx, query)
 	if err != nil {
@@ -80,7 +80,7 @@ func (d *DuckDB) QueryContext(ctx context.Context, query string) ([]map[string]i
 
 func (d *DuckDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if d.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 	rows, err := d.conn.Query(query)
 	if err != nil {
@@ -92,7 +92,7 @@ func (d *DuckDB) Query(query string) ([]map[string]interface{}, []string, error)
 
 func (d *DuckDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if d.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := d.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -103,7 +103,7 @@ func (d *DuckDB) ExecContext(ctx context.Context, query string) (int64, error) {
 
 func (d *DuckDB) Exec(query string) (int64, error) {
 	if d.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := d.conn.Exec(query)
 	if err != nil {
@@ -174,7 +174,7 @@ ORDER BY table_schema, table_name`
 func (d *DuckDB) GetCreateStatement(dbName, tableName string) (string, error) {
 	schema, pureTable := normalizeDuckDBSchemaAndTable(dbName, tableName)
 	if pureTable == "" {
-		return "", fmt.Errorf("table name required")
+		return "", fmt.Errorf("表名不能为空")
 	}
 
 	escapedTable := escapeDuckDBLiteral(pureTable)
@@ -204,13 +204,13 @@ func (d *DuckDB) GetCreateStatement(dbName, tableName string) (string, error) {
 		}
 	}
 
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (d *DuckDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
 	schema, pureTable := normalizeDuckDBSchemaAndTable(dbName, tableName)
 	if pureTable == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	query := fmt.Sprintf(`
@@ -303,7 +303,7 @@ func (d *DuckDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefi
 
 func (d *DuckDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if d.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := d.conn.Begin()
@@ -346,7 +346,7 @@ func (d *DuckDB) ApplyChanges(tableName string, changes connection.ChangeSet) er
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -367,12 +367,12 @@ func (d *DuckDB) ApplyChanges(tableName string, changes connection.ChangeSet) er
 			args = append(args, v)
 		}
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -392,7 +392,7 @@ func (d *DuckDB) ApplyChanges(tableName string, changes connection.ChangeSet) er
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/highgo_impl.go

@@ -125,7 +125,7 @@ func (h *HighGoDB) Close() error {
 
 func (h *HighGoDB) Ping() error {
 	if h.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := h.pingTimeout
 	if timeout <= 0 {
@@ -138,7 +138,7 @@ func (h *HighGoDB) Ping() error {
 
 func (h *HighGoDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if h.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := h.conn.QueryContext(ctx, query)
@@ -152,7 +152,7 @@ func (h *HighGoDB) QueryContext(ctx context.Context, query string) ([]map[string
 
 func (h *HighGoDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if h.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := h.conn.Query(query)
@@ -165,7 +165,7 @@ func (h *HighGoDB) Query(query string) ([]map[string]interface{}, []string, erro
 
 func (h *HighGoDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if h.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := h.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -176,7 +176,7 @@ func (h *HighGoDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (h *HighGoDB) Exec(query string) (int64, error) {
 	if h.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := h.conn.Exec(query)
 	if err != nil {
@@ -232,7 +232,7 @@ func (h *HighGoDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefi
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -302,7 +302,7 @@ func (h *HighGoDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefin
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -407,7 +407,7 @@ func (h *HighGoDB) GetForeignKeys(dbName, tableName string) ([]connection.Foreig
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -467,7 +467,7 @@ func (h *HighGoDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDe
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -531,7 +531,7 @@ ORDER BY table_schema, table_name, ordinal_position`
 
 func (h *HighGoDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if h.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := h.conn.Begin()
@@ -579,7 +579,7 @@ func (h *HighGoDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -607,12 +607,12 @@ func (h *HighGoDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -636,7 +636,7 @@ func (h *HighGoDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/kingbase_identifier_utils.go

@@ -162,3 +162,45 @@ func findKingbaseQualifiedSeparator(raw string) int {
 
 	return -1
 }
+
+// buildKingbaseSearchPathCommon 统一构建 Kingbase search_path。
+// 返回 search_path SQL 片段和规范化后的 schema 列表（用于调试/扩展）。
+func buildKingbaseSearchPathCommon(rawSchemas []string) (string, []string) {
+	if len(rawSchemas) == 0 {
+		return "", nil
+	}
+
+	seen := make(map[string]struct{}, len(rawSchemas)+1)
+	quotedParts := make([]string, 0, len(rawSchemas)+1)
+	normalizedSchemas := make([]string, 0, len(rawSchemas)+1)
+
+	appendSchema := func(raw string) {
+		cleaned := normalizeKingbaseIdentCommon(raw)
+		if cleaned == "" {
+			return
+		}
+		if strings.EqualFold(cleaned, "public") {
+			cleaned = "public"
+		}
+		key := strings.ToLower(cleaned)
+		if _, ok := seen[key]; ok {
+			return
+		}
+		seen[key] = struct{}{}
+		normalizedSchemas = append(normalizedSchemas, cleaned)
+		escaped := strings.ReplaceAll(cleaned, `"`, `""`)
+		quotedParts = append(quotedParts, `"`+escaped+`"`)
+	}
+
+	for _, raw := range rawSchemas {
+		appendSchema(raw)
+	}
+	if _, ok := seen["public"]; !ok {
+		appendSchema("public")
+	}
+
+	if len(quotedParts) == 0 {
+		return "", normalizedSchemas
+	}
+	return strings.Join(quotedParts, ", "), normalizedSchemas
+}

internal/db/kingbase_identifier_utils_test.go

@@ -50,3 +50,43 @@ func TestSplitKingbaseQualifiedNameCommon(t *testing.T) {
 		})
 	}
 }
+
+func TestBuildKingbaseSearchPathCommon(t *testing.T) {
+	tests := []struct {
+		name    string
+		in      []string
+		want    string
+		wantLen int
+	}{
+		{
+			name:    "normal schemas",
+			in:      []string{"ldf_server", "public"},
+			want:    `"ldf_server", "public"`,
+			wantLen: 2,
+		},
+		{
+			name:    "quoted and escaped schemas should not be double quoted",
+			in:      []string{`"ldf_server"`, `""bcs_barcode""`, `\"public\"`},
+			want:    `"ldf_server", "bcs_barcode", "public"`,
+			wantLen: 3,
+		},
+		{
+			name:    "dedupe ignoring case and keep public fallback",
+			in:      []string{"LDF_SERVER", "ldf_server", "PUBLIC"},
+			want:    `"LDF_SERVER", "public"`,
+			wantLen: 2,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, parts := buildKingbaseSearchPathCommon(tt.in)
+			if got != tt.want {
+				t.Fatalf("buildKingbaseSearchPathCommon(%v)=%q,want=%q", tt.in, got, tt.want)
+			}
+			if len(parts) != tt.wantLen {
+				t.Fatalf("buildKingbaseSearchPathCommon(%v) parts=%v, len=%d, wantLen=%d", tt.in, parts, len(parts), tt.wantLen)
+			}
+		})
+	}
+}

internal/db/kingbase_impl.go

@@ -198,7 +198,7 @@ func (k *KingbaseDB) getSearchPathStr() string {
 	}
 	defer rows.Close()
 
-	var schemas []string
+	var rawSchemas []string
 	for rows.Next() {
 		var name string
 		if err := rows.Scan(&name); err != nil {
@@ -206,17 +206,12 @@ func (k *KingbaseDB) getSearchPathStr() string {
 		}
 		name = strings.TrimSpace(name)
 		if name != "" {
-			// 使用 SQL 标准的双引号包裹标识符
-			escaped := strings.ReplaceAll(name, `"`, `""`)
-			schemas = append(schemas, `"`+escaped+`"`)
+			rawSchemas = append(rawSchemas, name)
 		}
 	}
 
-	if len(schemas) == 0 {
-		return ""
-	}
-
-	return strings.Join(schemas, ", ")
+	searchPath, _ := buildKingbaseSearchPathCommon(rawSchemas)
+	return searchPath
 }
 
 func (k *KingbaseDB) Close() error {
@@ -237,7 +232,7 @@ func (k *KingbaseDB) Close() error {
 
 func (k *KingbaseDB) Ping() error {
 	if k.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := k.pingTimeout
 	if timeout <= 0 {
@@ -250,7 +245,7 @@ func (k *KingbaseDB) Ping() error {
 
 func (k *KingbaseDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if k.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := k.conn.QueryContext(ctx, query)
@@ -264,7 +259,7 @@ func (k *KingbaseDB) QueryContext(ctx context.Context, query string) ([]map[stri
 
 func (k *KingbaseDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if k.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := k.conn.Query(query)
@@ -277,7 +272,7 @@ func (k *KingbaseDB) Query(query string) ([]map[string]interface{}, []string, er
 
 func (k *KingbaseDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if k.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := k.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -288,7 +283,7 @@ func (k *KingbaseDB) ExecContext(ctx context.Context, query string) (int64, erro
 
 func (k *KingbaseDB) Exec(query string) (int64, error) {
 	if k.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := k.conn.Exec(query)
 	if err != nil {
@@ -372,7 +367,7 @@ func (k *KingbaseDB) GetColumns(dbName, tableName string) ([]connection.ColumnDe
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	// 转义函数:处理单引号,移除双引号
@@ -445,7 +440,7 @@ ORDER BY a.attnum`, esc(schema), esc(table))
 func (k *KingbaseDB) getColumnsWithCurrentSchema(tableName string) ([]connection.ColumnDefinition, error) {
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	// 转义函数
@@ -529,7 +524,7 @@ func (k *KingbaseDB) GetIndexes(dbName, tableName string) ([]connection.IndexDef
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	// 转义函数:处理单引号,移除双引号
@@ -627,7 +622,7 @@ func (k *KingbaseDB) GetForeignKeys(dbName, tableName string) ([]connection.Fore
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	// 转义函数:处理单引号,移除双引号
@@ -709,7 +704,7 @@ func (k *KingbaseDB) GetTriggers(dbName, tableName string) ([]connection.Trigger
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	// 转义函数:处理单引号,移除双引号
@@ -752,7 +747,7 @@ func (k *KingbaseDB) GetTriggers(dbName, tableName string) ([]connection.Trigger
 
 func (k *KingbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if k.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := k.conn.Begin()
@@ -763,7 +758,7 @@ func (k *KingbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet
 
 	schema, table := splitKingbaseQualifiedTable(tableName)
 	if table == "" {
-		return fmt.Errorf("table name required")
+		return fmt.Errorf("表名不能为空")
 	}
 
 	qualifiedTable := ""
@@ -816,7 +811,7 @@ func (k *KingbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
@@ -845,7 +840,7 @@ func (k *KingbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v; sql=%s", err, query)
+			return fmt.Errorf("插入失败：%v; sql=%s", err, query)
 		}
 	}
 

internal/db/mariadb_impl.go

@@ -41,7 +41,7 @@ func (m *MariaDB) getDSN(config connection.ConnectionConfig) (string, error) {
 	tlsMode := resolveMySQLTLSMode(config)
 
 	return fmt.Sprintf(
-		"%s:%s@%s(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds&tls=%s",
+		"%s:%s@%s(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds&tls=%s&multiStatements=true",
 		config.User, config.Password, protocol, address, database, timeout, url.QueryEscape(tlsMode),
 	), nil
 }
@@ -73,7 +73,7 @@ func (m *MariaDB) Close() error {
 
 func (m *MariaDB) Ping() error {
 	if m.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := m.pingTimeout
 	if timeout <= 0 {
@@ -84,9 +84,33 @@ func (m *MariaDB) Ping() error {
 	return m.conn.PingContext(ctx)
 }
 
+func (m *MariaDB) QueryMulti(query string) ([]connection.ResultSetData, error) {
+	if m.conn == nil {
+		return nil, fmt.Errorf("连接未打开")
+	}
+	rows, err := m.conn.Query(query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanMultiRows(rows)
+}
+
+func (m *MariaDB) QueryMultiContext(ctx context.Context, query string) ([]connection.ResultSetData, error) {
+	if m.conn == nil {
+		return nil, fmt.Errorf("连接未打开")
+	}
+	rows, err := m.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanMultiRows(rows)
+}
+
 func (m *MariaDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if m.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := m.conn.QueryContext(ctx, query)
@@ -100,7 +124,7 @@ func (m *MariaDB) QueryContext(ctx context.Context, query string) ([]map[string]
 
 func (m *MariaDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if m.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := m.conn.Query(query)
@@ -113,7 +137,7 @@ func (m *MariaDB) Query(query string) ([]map[string]interface{}, []string, error
 
 func (m *MariaDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if m.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := m.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -124,7 +148,7 @@ func (m *MariaDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (m *MariaDB) Exec(query string) (int64, error) {
 	if m.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := m.conn.Exec(query)
 	if err != nil {
@@ -186,7 +210,7 @@ func (m *MariaDB) GetCreateStatement(dbName, tableName string) (string, error) {
 			return fmt.Sprintf("%v", val), nil
 		}
 	}
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (m *MariaDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
@@ -320,7 +344,7 @@ func (m *MariaDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDef
 
 func (m *MariaDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if m.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := m.conn.Begin()
@@ -342,7 +366,7 @@ func (m *MariaDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		}
 		query := fmt.Sprintf("DELETE FROM `%s` WHERE %s", tableName, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -367,12 +391,12 @@ func (m *MariaDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE `%s` SET %s WHERE %s", tableName, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -394,7 +418,7 @@ func (m *MariaDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 
 		query := fmt.Sprintf("INSERT INTO `%s` (%s) VALUES (%s)", tableName, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 
@@ -404,7 +428,7 @@ func (m *MariaDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 func (m *MariaDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
 	query := fmt.Sprintf("SELECT TABLE_NAME, COLUMN_NAME, COLUMN_TYPE FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = '%s'", dbName)
 	if dbName == "" {
-		return nil, fmt.Errorf("database name required for GetAllColumns")
+		return nil, fmt.Errorf("获取全部列信息需要指定数据库名称")
 	}
 
 	data, _, err := m.Query(query)

internal/db/mongodb_impl.go

@@ -237,9 +237,6 @@ func (m *MongoDB) getURI(config connection.ConnectionConfig) string {
 	params.Set("serverSelectionTimeoutMS", strconv.Itoa(timeout*1000))
 
 	authSource := strings.TrimSpace(config.AuthSource)
-	if authSource == "" && strings.TrimSpace(config.Database) != "" {
-		authSource = strings.TrimSpace(config.Database)
-	}
 	if authSource == "" {
 		authSource = "admin"
 	}
@@ -480,7 +477,7 @@ func (m *MongoDB) Close() error {
 
 func (m *MongoDB) Ping() error {
 	if m.client == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := m.pingTimeout
 	if timeout <= 0 {
@@ -684,7 +681,7 @@ func buildMembersFromHello(raw bson.M) []connection.MongoMemberInfo {
 
 func (m *MongoDB) DiscoverMembers() (string, []connection.MongoMemberInfo, error) {
 	if m.client == nil {
-		return "", nil, fmt.Errorf("connection not open")
+		return "", nil, fmt.Errorf("连接未打开")
 	}
 
 	timeout := m.pingTimeout
@@ -835,7 +832,7 @@ func extractCollectionFromSQL(sql string) string {
 
 func (m *MongoDB) queryWithContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if m.client == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	query = strings.TrimSpace(query)
@@ -1079,7 +1076,7 @@ func (m *MongoDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (m *MongoDB) GetDatabases() ([]string, error) {
 	if m.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
@@ -1094,7 +1091,7 @@ func (m *MongoDB) GetDatabases() ([]string, error) {
 
 func (m *MongoDB) GetTables(dbName string) ([]string, error) {
 	if m.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 
 	targetDB := dbName
@@ -1130,7 +1127,7 @@ func (m *MongoDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWit
 // GetIndexes returns indexes for a MongoDB collection
 func (m *MongoDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
 	if m.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 
 	targetDB := dbName
@@ -1197,7 +1194,7 @@ func (m *MongoDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDef
 // ApplyChanges implements batch changes for MongoDB
 func (m *MongoDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if m.client == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
@@ -1213,7 +1210,7 @@ func (m *MongoDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		}
 		if len(filter) > 0 {
 			if _, err := collection.DeleteOne(ctx, filter); err != nil {
-				return fmt.Errorf("delete error: %v", err)
+				return fmt.Errorf("删除失败：%v", err)
 			}
 		}
 	}
@@ -1225,7 +1222,7 @@ func (m *MongoDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 			filter[k] = v
 		}
 		if len(filter) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		updateDoc := bson.M{"$set": bson.M{}}
@@ -1234,7 +1231,7 @@ func (m *MongoDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		}
 
 		if _, err := collection.UpdateOne(ctx, filter, updateDoc); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -1246,7 +1243,7 @@ func (m *MongoDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		}
 		if len(doc) > 0 {
 			if _, err := collection.InsertOne(ctx, doc); err != nil {
-				return fmt.Errorf("insert error: %v", err)
+				return fmt.Errorf("插入失败：%v", err)
 			}
 		}
 	}

internal/db/mongodb_impl_v1.go

@@ -238,9 +238,6 @@ func (m *MongoDBV1) getURI(config connection.ConnectionConfig) string {
 	params.Set("serverSelectionTimeoutMS", strconv.Itoa(timeout*1000))
 
 	authSource := strings.TrimSpace(config.AuthSource)
-	if authSource == "" && strings.TrimSpace(config.Database) != "" {
-		authSource = strings.TrimSpace(config.Database)
-	}
 	if authSource == "" {
 		authSource = "admin"
 	}
@@ -483,7 +480,7 @@ func (m *MongoDBV1) Close() error {
 
 func (m *MongoDBV1) Ping() error {
 	if m.client == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := m.pingTimeout
 	if timeout <= 0 {
@@ -687,7 +684,7 @@ func buildMembersFromHello(raw bson.M) []connection.MongoMemberInfo {
 
 func (m *MongoDBV1) DiscoverMembers() (string, []connection.MongoMemberInfo, error) {
 	if m.client == nil {
-		return "", nil, fmt.Errorf("connection not open")
+		return "", nil, fmt.Errorf("连接未打开")
 	}
 
 	timeout := m.pingTimeout
@@ -838,7 +835,7 @@ func extractCollectionFromSQL(sql string) string {
 
 func (m *MongoDBV1) queryWithContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if m.client == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	query = strings.TrimSpace(query)
@@ -1082,7 +1079,7 @@ func (m *MongoDBV1) ExecContext(ctx context.Context, query string) (int64, error
 
 func (m *MongoDBV1) GetDatabases() ([]string, error) {
 	if m.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
@@ -1097,7 +1094,7 @@ func (m *MongoDBV1) GetDatabases() ([]string, error) {
 
 func (m *MongoDBV1) GetTables(dbName string) ([]string, error) {
 	if m.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 
 	targetDB := dbName
@@ -1133,7 +1130,7 @@ func (m *MongoDBV1) GetAllColumns(dbName string) ([]connection.ColumnDefinitionW
 // GetIndexes returns indexes for a MongoDB collection
 func (m *MongoDBV1) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
 	if m.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 
 	targetDB := dbName
@@ -1200,7 +1197,7 @@ func (m *MongoDBV1) GetTriggers(dbName, tableName string) ([]connection.TriggerD
 // ApplyChanges implements batch changes for MongoDB
 func (m *MongoDBV1) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if m.client == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
@@ -1216,7 +1213,7 @@ func (m *MongoDBV1) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 		if len(filter) > 0 {
 			if _, err := collection.DeleteOne(ctx, filter); err != nil {
-				return fmt.Errorf("delete error: %v", err)
+				return fmt.Errorf("删除失败：%v", err)
 			}
 		}
 	}
@@ -1228,7 +1225,7 @@ func (m *MongoDBV1) ApplyChanges(tableName string, changes connection.ChangeSet)
 			filter[k] = v
 		}
 		if len(filter) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		updateDoc := bson.M{"$set": bson.M{}}
@@ -1237,7 +1234,7 @@ func (m *MongoDBV1) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 
 		if _, err := collection.UpdateOne(ctx, filter, updateDoc); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -1249,7 +1246,7 @@ func (m *MongoDBV1) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 		if len(doc) > 0 {
 			if _, err := collection.InsertOne(ctx, doc); err != nil {
-				return fmt.Errorf("insert error: %v", err)
+				return fmt.Errorf("插入失败：%v", err)
 			}
 		}
 	}

internal/db/mysql_agent_impl.go

@@ -429,7 +429,7 @@ func (m *MySQLAgentDB) ApplyChanges(tableName string, changes connection.ChangeS
 
 func (m *MySQLAgentDB) requireClient() (*mysqlAgentClient, error) {
 	if m.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 	return m.client, nil
 }

internal/db/mysql_impl.go

@@ -186,7 +186,7 @@ func (m *MySQLDB) getDSN(config connection.ConnectionConfig) (string, error) {
 	tlsMode := resolveMySQLTLSMode(config)
 
 	return fmt.Sprintf(
-		"%s:%s@%s(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds&tls=%s",
+		"%s:%s@%s(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds&tls=%s&multiStatements=true",
 		config.User, config.Password, protocol, address, database, timeout, url.QueryEscape(tlsMode),
 	), nil
 }
@@ -267,7 +267,7 @@ func (m *MySQLDB) Close() error {
 
 func (m *MySQLDB) Ping() error {
 	if m.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := m.pingTimeout
 	if timeout <= 0 {
@@ -278,9 +278,33 @@ func (m *MySQLDB) Ping() error {
 	return m.conn.PingContext(ctx)
 }
 
+func (m *MySQLDB) QueryMulti(query string) ([]connection.ResultSetData, error) {
+	if m.conn == nil {
+		return nil, fmt.Errorf("连接未打开")
+	}
+	rows, err := m.conn.Query(query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanMultiRows(rows)
+}
+
+func (m *MySQLDB) QueryMultiContext(ctx context.Context, query string) ([]connection.ResultSetData, error) {
+	if m.conn == nil {
+		return nil, fmt.Errorf("连接未打开")
+	}
+	rows, err := m.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanMultiRows(rows)
+}
+
 func (m *MySQLDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if m.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := m.conn.QueryContext(ctx, query)
@@ -294,7 +318,7 @@ func (m *MySQLDB) QueryContext(ctx context.Context, query string) ([]map[string]
 
 func (m *MySQLDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if m.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := m.conn.Query(query)
@@ -307,7 +331,7 @@ func (m *MySQLDB) Query(query string) ([]map[string]interface{}, []string, error
 
 func (m *MySQLDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if m.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := m.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -318,7 +342,7 @@ func (m *MySQLDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (m *MySQLDB) Exec(query string) (int64, error) {
 	if m.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := m.conn.Exec(query)
 	if err != nil {
@@ -380,7 +404,7 @@ func (m *MySQLDB) GetCreateStatement(dbName, tableName string) (string, error) {
 			return fmt.Sprintf("%v", val), nil
 		}
 	}
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (m *MySQLDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
@@ -514,7 +538,7 @@ func (m *MySQLDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDef
 
 func (m *MySQLDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if m.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	columnTypeMap := m.loadColumnTypeMap(tableName)
@@ -539,7 +563,7 @@ func (m *MySQLDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		query := fmt.Sprintf("DELETE FROM `%s` WHERE %s", tableName, strings.Join(wheres, " AND "))
 		res, err := tx.Exec(query, args...)
 		if err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 		if affected, err := res.RowsAffected(); err == nil && affected == 0 {
 			return fmt.Errorf("删除未生效：未匹配到任何行")
@@ -567,13 +591,13 @@ func (m *MySQLDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE `%s` SET %s WHERE %s", tableName, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		res, err := tx.Exec(query, args...)
 		if err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 		if affected, err := res.RowsAffected(); err == nil && affected == 0 {
 			return fmt.Errorf("更新未生效：未匹配到任何行")
@@ -600,7 +624,7 @@ func (m *MySQLDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 			query := fmt.Sprintf("INSERT INTO `%s` () VALUES ()", tableName)
 			res, err := tx.Exec(query)
 			if err != nil {
-				return fmt.Errorf("insert error: %v", err)
+				return fmt.Errorf("插入失败：%v", err)
 			}
 			if affected, err := res.RowsAffected(); err == nil && affected == 0 {
 				return fmt.Errorf("插入未生效：未影响任何行")
@@ -611,7 +635,7 @@ func (m *MySQLDB) ApplyChanges(tableName string, changes connection.ChangeSet) e
 		query := fmt.Sprintf("INSERT INTO `%s` (%s) VALUES (%s)", tableName, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		res, err := tx.Exec(query, args...)
 		if err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 		if affected, err := res.RowsAffected(); err == nil && affected == 0 {
 			return fmt.Errorf("插入未生效：未影响任何行")
@@ -774,7 +798,7 @@ func formatMySQLDateTime(t time.Time) string {
 func (m *MySQLDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
 	query := fmt.Sprintf("SELECT TABLE_NAME, COLUMN_NAME, COLUMN_TYPE FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = '%s'", dbName)
 	if dbName == "" {
-		return nil, fmt.Errorf("database name required for GetAllColumns")
+		return nil, fmt.Errorf("获取全部列信息需要指定数据库名称")
 	}
 
 	data, _, err := m.Query(query)

internal/db/optional_driver_agent_impl.go

@@ -510,7 +510,7 @@ func (d *OptionalDriverAgentDB) ApplyChanges(tableName string, changes connectio
 
 func (d *OptionalDriverAgentDB) requireClient() (*optionalDriverAgentClient, error) {
 	if d.client == nil {
-		return nil, fmt.Errorf("connection not open")
+		return nil, fmt.Errorf("连接未打开")
 	}
 	return d.client, nil
 }
@@ -582,27 +582,8 @@ func (d *OptionalDriverAgentDB) listKingbaseSchemas(ctx context.Context) ([]stri
 }
 
 func buildKingbaseSearchPathFromSchemas(schemas []string) string {
-	if len(schemas) == 0 {
-		return ""
-	}
-	seen := make(map[string]struct{}, len(schemas)+1)
-	parts := make([]string, 0, len(schemas)+1)
-	for _, name := range schemas {
-		trimmed := normalizeKingbaseAgentIdent(name)
-		if trimmed == "" {
-			continue
-		}
-		key := strings.ToLower(trimmed)
-		if _, ok := seen[key]; ok {
-			continue
-		}
-		seen[key] = struct{}{}
-		parts = append(parts, quoteKingbaseAgentIdent(trimmed))
-	}
-	if _, ok := seen["public"]; !ok {
-		parts = append(parts, "public")
-	}
-	return strings.Join(parts, ", ")
+	searchPath, _ := buildKingbaseSearchPathCommon(schemas)
+	return searchPath
 }
 
 func quoteKingbaseAgentIdent(name string) string {

internal/db/oracle_impl.go

@@ -135,7 +135,7 @@ func (o *OracleDB) Close() error {
 
 func (o *OracleDB) Ping() error {
 	if o.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := o.pingTimeout
 	if timeout <= 0 {
@@ -148,7 +148,7 @@ func (o *OracleDB) Ping() error {
 
 func (o *OracleDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if o.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := o.conn.QueryContext(ctx, query)
@@ -162,7 +162,7 @@ func (o *OracleDB) QueryContext(ctx context.Context, query string) ([]map[string
 
 func (o *OracleDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if o.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := o.conn.Query(query)
@@ -175,7 +175,7 @@ func (o *OracleDB) Query(query string) ([]map[string]interface{}, []string, erro
 
 func (o *OracleDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if o.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := o.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -186,7 +186,7 @@ func (o *OracleDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (o *OracleDB) Exec(query string) (int64, error) {
 	if o.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := o.conn.Exec(query)
 	if err != nil {
@@ -259,7 +259,7 @@ func (o *OracleDB) GetCreateStatement(dbName, tableName string) (string, error)
 			return fmt.Sprintf("%v", val), nil
 		}
 	}
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (o *OracleDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
@@ -391,7 +391,7 @@ func (o *OracleDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDe
 
 func (o *OracleDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if o.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := o.conn.Begin()
@@ -439,7 +439,7 @@ func (o *OracleDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -467,12 +467,12 @@ func (o *OracleDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -496,7 +496,7 @@ func (o *OracleDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/postgres_impl.go

@@ -195,7 +195,7 @@ func (p *PostgresDB) Close() error {
 
 func (p *PostgresDB) Ping() error {
 	if p.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := p.pingTimeout
 	if timeout <= 0 {
@@ -208,7 +208,7 @@ func (p *PostgresDB) Ping() error {
 
 func (p *PostgresDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if p.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := p.conn.QueryContext(ctx, query)
@@ -222,7 +222,7 @@ func (p *PostgresDB) QueryContext(ctx context.Context, query string) ([]map[stri
 
 func (p *PostgresDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if p.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := p.conn.Query(query)
@@ -235,7 +235,7 @@ func (p *PostgresDB) Query(query string) ([]map[string]interface{}, []string, er
 
 func (p *PostgresDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if p.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := p.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -246,7 +246,7 @@ func (p *PostgresDB) ExecContext(ctx context.Context, query string) (int64, erro
 
 func (p *PostgresDB) Exec(query string) (int64, error) {
 	if p.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := p.conn.Exec(query)
 	if err != nil {
@@ -302,7 +302,7 @@ func (p *PostgresDB) GetColumns(dbName, tableName string) ([]connection.ColumnDe
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -372,7 +372,7 @@ func (p *PostgresDB) GetIndexes(dbName, tableName string) ([]connection.IndexDef
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -478,7 +478,7 @@ func (p *PostgresDB) GetForeignKeys(dbName, tableName string) ([]connection.Fore
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -538,7 +538,7 @@ func (p *PostgresDB) GetTriggers(dbName, tableName string) ([]connection.Trigger
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -602,7 +602,7 @@ ORDER BY table_schema, table_name, ordinal_position`
 
 func (p *PostgresDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if p.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := p.conn.Begin()
@@ -650,7 +650,7 @@ func (p *PostgresDB) ApplyChanges(tableName string, changes connection.ChangeSet
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -678,12 +678,12 @@ func (p *PostgresDB) ApplyChanges(tableName string, changes connection.ChangeSet
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -707,7 +707,7 @@ func (p *PostgresDB) ApplyChanges(tableName string, changes connection.ChangeSet
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/scan_rows.go

@@ -2,6 +2,8 @@ package db
 
 import (
 	"database/sql"
+
+	"GoNavi-Wails/internal/connection"
 )
 
 func scanRows(rows *sql.Rows) ([]map[string]interface{}, []string, error) {
@@ -44,3 +46,38 @@ func scanRows(rows *sql.Rows) ([]map[string]interface{}, []string, error) {
 	}
 	return resultData, columns, nil
 }
+
+// scanMultiRows 遍历 sql.Rows 中的所有结果集，将每个结果集作为 ResultSetData 返回。
+// 利用 rows.NextResultSet() 支持一次 query 返回多个结果集的场景。
+func scanMultiRows(rows *sql.Rows) ([]connection.ResultSetData, error) {
+	var results []connection.ResultSetData
+	for {
+		data, cols, err := scanRows(rows)
+		if err != nil {
+			return results, err
+		}
+		if data == nil {
+			data = make([]map[string]interface{}, 0)
+		}
+		if cols == nil {
+			cols = []string{}
+		}
+		results = append(results, connection.ResultSetData{
+			Rows:    data,
+			Columns: cols,
+		})
+		if !rows.NextResultSet() {
+			break
+		}
+	}
+	if len(results) == 0 {
+		results = []connection.ResultSetData{{
+			Rows:    make([]map[string]interface{}, 0),
+			Columns: []string{},
+		}}
+	}
+	if err := rows.Err(); err != nil {
+		return results, err
+	}
+	return results, nil
+}

internal/db/sqlite_impl.go

@@ -184,7 +184,7 @@ func (s *SQLiteDB) Close() error {
 
 func (s *SQLiteDB) Ping() error {
 	if s.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := s.pingTimeout
 	if timeout <= 0 {
@@ -197,7 +197,7 @@ func (s *SQLiteDB) Ping() error {
 
 func (s *SQLiteDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if s.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := s.conn.QueryContext(ctx, query)
@@ -211,7 +211,7 @@ func (s *SQLiteDB) QueryContext(ctx context.Context, query string) ([]map[string
 
 func (s *SQLiteDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if s.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := s.conn.Query(query)
@@ -224,7 +224,7 @@ func (s *SQLiteDB) Query(query string) ([]map[string]interface{}, []string, erro
 
 func (s *SQLiteDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if s.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := s.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -235,7 +235,7 @@ func (s *SQLiteDB) ExecContext(ctx context.Context, query string) (int64, error)
 
 func (s *SQLiteDB) Exec(query string) (int64, error) {
 	if s.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := s.conn.Exec(query)
 	if err != nil {
@@ -275,13 +275,13 @@ func (s *SQLiteDB) GetCreateStatement(dbName, tableName string) (string, error)
 			return fmt.Sprintf("%v", val), nil
 		}
 	}
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (s *SQLiteDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(v string) string { return strings.ReplaceAll(v, "'", "''") }
@@ -372,7 +372,7 @@ func (s *SQLiteDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefi
 func (s *SQLiteDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(v string) string { return strings.ReplaceAll(v, "'", "''") }
@@ -463,7 +463,7 @@ func (s *SQLiteDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefin
 func (s *SQLiteDB) GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error) {
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(v string) string { return strings.ReplaceAll(v, "'", "''") }
@@ -537,7 +537,7 @@ func (s *SQLiteDB) GetForeignKeys(dbName, tableName string) ([]connection.Foreig
 func (s *SQLiteDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error) {
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(v string) string { return strings.ReplaceAll(v, "'", "''") }
@@ -588,7 +588,7 @@ func (s *SQLiteDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDe
 
 func (s *SQLiteDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if s.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := s.conn.Begin()
@@ -634,7 +634,7 @@ func (s *SQLiteDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -659,12 +659,12 @@ func (s *SQLiteDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -686,7 +686,7 @@ func (s *SQLiteDB) ApplyChanges(tableName string, changes connection.ChangeSet)
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/sqlserver_impl.go

@@ -117,7 +117,7 @@ func (s *SqlServerDB) Close() error {
 
 func (s *SqlServerDB) Ping() error {
 	if s.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := s.pingTimeout
 	if timeout <= 0 {
@@ -128,9 +128,33 @@ func (s *SqlServerDB) Ping() error {
 	return s.conn.PingContext(ctx)
 }
 
+func (s *SqlServerDB) QueryMulti(query string) ([]connection.ResultSetData, error) {
+	if s.conn == nil {
+		return nil, fmt.Errorf("连接未打开")
+	}
+	rows, err := s.conn.Query(query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanMultiRows(rows)
+}
+
+func (s *SqlServerDB) QueryMultiContext(ctx context.Context, query string) ([]connection.ResultSetData, error) {
+	if s.conn == nil {
+		return nil, fmt.Errorf("连接未打开")
+	}
+	rows, err := s.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanMultiRows(rows)
+}
+
 func (s *SqlServerDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if s.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := s.conn.QueryContext(ctx, query)
@@ -144,7 +168,7 @@ func (s *SqlServerDB) QueryContext(ctx context.Context, query string) ([]map[str
 
 func (s *SqlServerDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if s.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := s.conn.Query(query)
@@ -157,7 +181,7 @@ func (s *SqlServerDB) Query(query string) ([]map[string]interface{}, []string, e
 
 func (s *SqlServerDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if s.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := s.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -168,7 +192,7 @@ func (s *SqlServerDB) ExecContext(ctx context.Context, query string) (int64, err
 
 func (s *SqlServerDB) Exec(query string) (int64, error) {
 	if s.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := s.conn.Exec(query)
 	if err != nil {
@@ -236,7 +260,7 @@ func (s *SqlServerDB) GetColumns(dbName, tableName string) ([]connection.ColumnD
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -344,7 +368,7 @@ func (s *SqlServerDB) GetIndexes(dbName, tableName string) ([]connection.IndexDe
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -425,7 +449,7 @@ func (s *SqlServerDB) GetForeignKeys(dbName, tableName string) ([]connection.For
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -483,7 +507,7 @@ func (s *SqlServerDB) GetTriggers(dbName, tableName string) ([]connection.Trigge
 	}
 
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -530,7 +554,7 @@ ORDER BY tr.name`,
 
 func (s *SqlServerDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if s.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := s.conn.Begin()
@@ -573,7 +597,7 @@ func (s *SqlServerDB) ApplyChanges(tableName string, changes connection.ChangeSe
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -601,12 +625,12 @@ func (s *SqlServerDB) ApplyChanges(tableName string, changes connection.ChangeSe
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -630,7 +654,7 @@ func (s *SqlServerDB) ApplyChanges(tableName string, changes connection.ChangeSe
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/db/tdengine_impl.go

@@ -120,7 +120,7 @@ func (t *TDengineDB) Close() error {
 
 func (t *TDengineDB) Ping() error {
 	if t.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := t.pingTimeout
 	if timeout <= 0 {
@@ -133,7 +133,7 @@ func (t *TDengineDB) Ping() error {
 
 func (t *TDengineDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if t.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := t.conn.QueryContext(ctx, query)
@@ -147,7 +147,7 @@ func (t *TDengineDB) QueryContext(ctx context.Context, query string) ([]map[stri
 
 func (t *TDengineDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if t.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := t.conn.Query(query)
@@ -161,7 +161,7 @@ func (t *TDengineDB) Query(query string) ([]map[string]interface{}, []string, er
 
 func (t *TDengineDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if t.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := t.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -172,7 +172,7 @@ func (t *TDengineDB) ExecContext(ctx context.Context, query string) (int64, erro
 
 func (t *TDengineDB) Exec(query string) (int64, error) {
 	if t.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := t.conn.Exec(query)
 	if err != nil {
@@ -274,7 +274,7 @@ func (t *TDengineDB) GetCreateStatement(dbName, tableName string) (string, error
 	if lastErr != nil {
 		return "", lastErr
 	}
-	return "", fmt.Errorf("create statement not found")
+	return "", fmt.Errorf("未找到建表语句")
 }
 
 func (t *TDengineDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
@@ -325,7 +325,7 @@ func (t *TDengineDB) GetColumns(dbName, tableName string) ([]connection.ColumnDe
 
 func (t *TDengineDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
 	if strings.TrimSpace(dbName) == "" {
-		return nil, fmt.Errorf("database name required for GetAllColumns")
+		return nil, fmt.Errorf("获取全部列信息需要指定数据库名称")
 	}
 
 	tables, err := t.GetTables(dbName)
@@ -365,10 +365,10 @@ func (t *TDengineDB) GetTriggers(dbName, tableName string) ([]connection.Trigger
 
 func (t *TDengineDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if t.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	if strings.TrimSpace(tableName) == "" {
-		return fmt.Errorf("table name required")
+		return fmt.Errorf("表名不能为空")
 	}
 	if len(changes.Updates) > 0 || len(changes.Deletes) > 0 {
 		return fmt.Errorf("TDengine 目标端当前仅支持 INSERT 写入，暂不支持 UPDATE/DELETE 差异同步，请改用仅插入或全量覆盖模式")
@@ -384,7 +384,7 @@ func (t *TDengineDB) ApplyChanges(tableName string, changes connection.ChangeSet
 			continue
 		}
 		if _, err := t.conn.Exec(query); err != nil {
-			return fmt.Errorf("insert error: %v; sql=%s", err, query)
+			return fmt.Errorf("插入失败：%v; sql=%s", err, query)
 		}
 	}
 	return nil
@@ -392,7 +392,7 @@ func (t *TDengineDB) ApplyChanges(tableName string, changes connection.ChangeSet
 
 func buildTDengineInsertSQL(qualifiedTable string, row map[string]interface{}) (string, error) {
 	if strings.TrimSpace(qualifiedTable) == "" {
-		return "", fmt.Errorf("qualified table required")
+		return "", fmt.Errorf("需要指定完整的表名")
 	}
 	if len(row) == 0 {
 		return "", nil

internal/db/vastbase_impl.go

@@ -124,7 +124,7 @@ func (v *VastbaseDB) Close() error {
 
 func (v *VastbaseDB) Ping() error {
 	if v.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 	timeout := v.pingTimeout
 	if timeout <= 0 {
@@ -137,7 +137,7 @@ func (v *VastbaseDB) Ping() error {
 
 func (v *VastbaseDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
 	if v.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := v.conn.QueryContext(ctx, query)
@@ -151,7 +151,7 @@ func (v *VastbaseDB) QueryContext(ctx context.Context, query string) ([]map[stri
 
 func (v *VastbaseDB) Query(query string) ([]map[string]interface{}, []string, error) {
 	if v.conn == nil {
-		return nil, nil, fmt.Errorf("connection not open")
+		return nil, nil, fmt.Errorf("连接未打开")
 	}
 
 	rows, err := v.conn.Query(query)
@@ -164,7 +164,7 @@ func (v *VastbaseDB) Query(query string) ([]map[string]interface{}, []string, er
 
 func (v *VastbaseDB) ExecContext(ctx context.Context, query string) (int64, error) {
 	if v.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := v.conn.ExecContext(ctx, query)
 	if err != nil {
@@ -175,7 +175,7 @@ func (v *VastbaseDB) ExecContext(ctx context.Context, query string) (int64, erro
 
 func (v *VastbaseDB) Exec(query string) (int64, error) {
 	if v.conn == nil {
-		return 0, fmt.Errorf("connection not open")
+		return 0, fmt.Errorf("连接未打开")
 	}
 	res, err := v.conn.Exec(query)
 	if err != nil {
@@ -231,7 +231,7 @@ func (v *VastbaseDB) GetColumns(dbName, tableName string) ([]connection.ColumnDe
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -301,7 +301,7 @@ func (v *VastbaseDB) GetIndexes(dbName, tableName string) ([]connection.IndexDef
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -406,7 +406,7 @@ func (v *VastbaseDB) GetForeignKeys(dbName, tableName string) ([]connection.Fore
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -466,7 +466,7 @@ func (v *VastbaseDB) GetTriggers(dbName, tableName string) ([]connection.Trigger
 	}
 	table := strings.TrimSpace(tableName)
 	if table == "" {
-		return nil, fmt.Errorf("table name required")
+		return nil, fmt.Errorf("表名不能为空")
 	}
 
 	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
@@ -530,7 +530,7 @@ ORDER BY table_schema, table_name, ordinal_position`
 
 func (v *VastbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if v.conn == nil {
-		return fmt.Errorf("connection not open")
+		return fmt.Errorf("连接未打开")
 	}
 
 	tx, err := v.conn.Begin()
@@ -578,7 +578,7 @@ func (v *VastbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet
 		}
 		query := fmt.Sprintf("DELETE FROM %s WHERE %s", qualifiedTable, strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("delete error: %v", err)
+			return fmt.Errorf("删除失败：%v", err)
 		}
 	}
 
@@ -606,12 +606,12 @@ func (v *VastbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet
 		}
 
 		if len(wheres) == 0 {
-			return fmt.Errorf("update requires keys")
+			return fmt.Errorf("更新操作需要主键条件")
 		}
 
 		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("update error: %v", err)
+			return fmt.Errorf("更新失败：%v", err)
 		}
 	}
 
@@ -635,7 +635,7 @@ func (v *VastbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet
 
 		query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", qualifiedTable, strings.Join(cols, ", "), strings.Join(placeholders, ", "))
 		if _, err := tx.Exec(query, args...); err != nil {
-			return fmt.Errorf("insert error: %v", err)
+			return fmt.Errorf("插入失败：%v", err)
 		}
 	}
 

internal/logger/logger_test.go

@@ -0,0 +1,65 @@
+package logger
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+)
+
+func TestErrorChain_NilError(t *testing.T) {
+	if got := ErrorChain(nil); got != "" {
+		t.Errorf("ErrorChain(nil) = %q; want empty string", got)
+	}
+}
+
+func TestErrorChain_SingleError(t *testing.T) {
+	err := errors.New("single error")
+	got := ErrorChain(err)
+	if got != "single error" {
+		t.Errorf("ErrorChain(single) = %q; want %q", got, "single error")
+	}
+}
+
+func TestErrorChain_WrappedErrors(t *testing.T) {
+	inner := errors.New("root cause")
+	middle := fmt.Errorf("middle: %w", inner)
+	outer := fmt.Errorf("outer: %w", middle)
+
+	got := ErrorChain(outer)
+	// Should contain all three distinct messages
+	if got == "" {
+		t.Fatal("ErrorChain returned empty string for wrapped errors")
+	}
+	// The chain should start with the outermost error
+	if len(got) < len("outer:") {
+		t.Errorf("ErrorChain result too short: %q", got)
+	}
+}
+
+func TestErrorChain_DeduplicatesMessages(t *testing.T) {
+	// Create a chain where wrapping doesn't add new text
+	inner := errors.New("same message")
+	outer := fmt.Errorf("%w", inner)
+
+	got := ErrorChain(outer)
+	// Should not repeat "same message"
+	if got != "same message" {
+		t.Errorf("ErrorChain should deduplicate: got %q", got)
+	}
+}
+
+func TestErrorChain_TruncatesLongChain(t *testing.T) {
+	// Build a chain of 25 errors (exceeds the 20-level limit)
+	var err error = errors.New("base")
+	for i := 0; i < 25; i++ {
+		err = fmt.Errorf("level-%d: %w", i, err)
+	}
+	got := ErrorChain(err)
+	if got == "" {
+		t.Fatal("ErrorChain returned empty for long chain")
+	}
+	// Should contain truncation notice
+	if len(got) == 0 {
+		t.Error("expected non-empty result for long chain")
+	}
+}

internal/redis/redis_impl.go

@@ -3,6 +3,7 @@ package redis
 import (
 	"context"
 	"crypto/tls"
+	"errors"
 	"fmt"
 	"net"
 	"net/url"
@@ -18,6 +19,8 @@ import (
 	"github.com/redis/go-redis/v9"
 )
 
+var ErrRedisKeyGone = errors.New("Redis Key 不存在或已过期")
+
 // RedisClientImpl implements RedisClient using go-redis
 type RedisClientImpl struct {
 	client        redis.UniversalClient
@@ -385,6 +388,65 @@ func (r *RedisClientImpl) ScanKeys(pattern string, cursor uint64, count int64) (
 	ctx, cancel := context.WithTimeout(context.Background(), maxDuration+5*time.Second)
 	defer cancel()
 
+	// 集群模式：逐 master 节点 SCAN 后合并去重
+	if r.isCluster && r.clusterClient != nil {
+		keys := make([]string, 0, int(targetCount))
+		seen := make(map[string]struct{}, int(targetCount))
+		var mu sync.Mutex
+
+		err := r.clusterClient.ForEachMaster(ctx, func(nodeCtx context.Context, node *redis.Client) error {
+			var nodeCursor uint64
+			round := 0
+			scanStartedAt := time.Now()
+			for {
+				if time.Since(scanStartedAt) >= maxDuration {
+					break
+				}
+				mu.Lock()
+				enough := len(keys) >= int(targetCount)
+				mu.Unlock()
+				if enough {
+					break
+				}
+
+				batch, nextCursor, err := node.Scan(nodeCtx, nodeCursor, physicalPattern, scanStepCount).Result()
+				if err != nil {
+					return err
+				}
+
+				mu.Lock()
+				for _, key := range batch {
+					if _, ok := seen[key]; ok {
+						continue
+					}
+					seen[key] = struct{}{}
+					keys = append(keys, key)
+					if len(keys) >= int(targetCount) {
+						break
+					}
+				}
+				mu.Unlock()
+
+				nodeCursor = nextCursor
+				round++
+				if nodeCursor == 0 || round >= maxRounds {
+					break
+				}
+			}
+			return nil
+		})
+		if err != nil {
+			return nil, err
+		}
+
+		// 集群模式 cursor 无意义，始终返回 "0" 表示扫描完成
+		return &RedisScanResult{
+			Keys:   r.loadRedisKeyInfos(ctx, keys),
+			Cursor: "0",
+		}, nil
+	}
+
+	// 非集群模式：原逻辑
 	currentCursor := cursor
 	round := 0
 	scanStartedAt := time.Now()
@@ -472,20 +534,29 @@ func (r *RedisClientImpl) loadRedisKeyInfos(ctx context.Context, keys []string)
 			if ttlErr != nil && ttlErr != redis.Nil {
 				ttlValue = -2
 			}
+			ttlSeconds := toRedisTTLSeconds(ttlValue)
+			if isRedisKeyGone(keyType, ttlSeconds) {
+				continue
+			}
 			result = append(result, RedisKeyInfo{
 				Key:  r.toDisplayKey(key),
 				Type: keyType,
-				TTL:  toRedisTTLSeconds(ttlValue),
+				TTL:  ttlSeconds,
 			})
 		}
 		return result
 	}
 
 	for i, key := range keys {
+		keyType := typeResults[i].Val()
+		ttlSeconds := toRedisTTLSeconds(ttlResults[i].Val())
+		if isRedisKeyGone(keyType, ttlSeconds) {
+			continue
+		}
 		result = append(result, RedisKeyInfo{
 			Key:  r.toDisplayKey(key),
-			Type: typeResults[i].Val(),
-			TTL:  toRedisTTLSeconds(ttlResults[i].Val()),
+			Type: keyType,
+			TTL:  ttlSeconds,
 		})
 	}
 	return result
@@ -501,6 +572,17 @@ func toRedisTTLSeconds(ttl time.Duration) int64 {
 	return int64(ttl.Seconds())
 }
 
+func isRedisKeyGone(keyType string, ttl int64) bool {
+	return keyType == "none" || ttl == -2
+}
+
+func normalizeRedisGetValueError(keyType string, ttl int64) error {
+	if isRedisKeyGone(keyType, ttl) {
+		return ErrRedisKeyGone
+	}
+	return nil
+}
+
 // GetKeyType returns the type of a key
 func (r *RedisClientImpl) GetKeyType(key string) (string, error) {
 	if r.client == nil {
@@ -594,6 +676,9 @@ func (r *RedisClientImpl) GetValue(key string) (*RedisValue, error) {
 	}
 
 	ttl, _ := r.GetTTL(key)
+	if err := normalizeRedisGetValueError(keyType, ttl); err != nil {
+		return nil, err
+	}
 	physicalKey := r.toPhysicalKey(key)
 
 	result := &RedisValue{

internal/redis/redis_impl_test.go

@@ -1,6 +1,9 @@
 package redis
 
-import "testing"
+import (
+	"errors"
+	"testing"
+)
 
 func TestSanitizeRedisPassword(t *testing.T) {
 	tests := []struct {
@@ -79,3 +82,40 @@ func TestSanitizeRedisPassword(t *testing.T) {
 		})
 	}
 }
+
+func TestIsRedisKeyGone(t *testing.T) {
+	tests := []struct {
+		name    string
+		keyType string
+		ttl     int64
+		want    bool
+	}{
+		{name: "type none", keyType: "none", ttl: -2, want: true},
+		{name: "type none without ttl", keyType: "none", ttl: -1, want: true},
+		{name: "missing by ttl", keyType: "string", ttl: -2, want: true},
+		{name: "normal string", keyType: "string", ttl: 30, want: false},
+		{name: "permanent hash", keyType: "hash", ttl: -1, want: false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := isRedisKeyGone(tt.keyType, tt.ttl); got != tt.want {
+				t.Fatalf("isRedisKeyGone(%q, %d)=%v, want %v", tt.keyType, tt.ttl, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestNormalizeRedisGetValueError(t *testing.T) {
+	err := normalizeRedisGetValueError("none", -2)
+	if !errors.Is(err, ErrRedisKeyGone) {
+		t.Fatalf("expected ErrRedisKeyGone, got %v", err)
+	}
+	if err == nil || err.Error() != "Redis Key 不存在或已过期" {
+		t.Fatalf("unexpected error text: %v", err)
+	}
+
+	if normalizeRedisGetValueError("hash", -1) != nil {
+		t.Fatal("expected nil for supported existing key")
+	}
+}