Merge pull request #93 from Syngnat/release/0.3.8

Release/0.3.8

README.md

@@ -37,6 +37,7 @@
 - **Oracle**：基础数据访问与编辑支持。
 - **Dameng（达梦）**：基础数据访问与编辑支持。
 - **Kingbase（人大金仓）**：基础数据访问与编辑支持。
+- **TDengine**：时序数据库连接、库表浏览与 SQL 查询支持。
 - **Redis**：Key/Value 浏览、命令执行、视图与编码切换。
 - **自定义驱动**：支持配置 Driver/DSN 接入更多数据源。
 - **SSH 隧道**：内置 SSH 隧道支持，安全连接内网数据库。

docs/HighGo_Optional_Code_Changes.md

@@ -0,0 +1,164 @@
+# HighGo 可选代码优化建议
+
+## 一、sslmode 配置优化
+
+### 当前状态
+
+**文件**：`internal/db/highgo_impl.go:43`
+
+**当前代码**：
+```go
+q.Set("sslmode", "disable")
+```
+
+### 建议修改
+
+根据瀚高官方文档，sslmode 的默认值应该是 `require`。建议修改为：
+
+```go
+q.Set("sslmode", "require")
+```
+
+### 修改原因
+
+1. **符合官方规范**：瀚高官方文档明确指出默认 sslmode 为 `require`
+2. **安全性提升**：启用 SSL 加密可以保护数据传输安全
+3. **生产环境最佳实践**：生产环境应该启用 SSL 连接
+
+### 是否需要修改？
+
+**不一定需要修改**，取决于您的实际环境：
+
+#### 保持 `disable` 的场景：
+- ✅ 开发/测试环境
+- ✅ HighGo 服务器未配置 SSL 证书
+- ✅ 内网环境，不需要加密传输
+- ✅ 快速测试连接功能
+
+#### 修改为 `require` 的场景：
+- ✅ 生产环境
+- ✅ HighGo 服务器已配置 SSL 证书
+- ✅ 跨网络连接，需要加密保护
+- ✅ 符合安全合规要求
+
+### 如何修改
+
+如果您决定修改，可以使用以下命令：
+
+**方式 1：直接修改（固定为 require）**
+```go
+// 文件：internal/db/highgo_impl.go 第 43 行
+q.Set("sslmode", "require")
+```
+
+**方式 2：可配置（推荐）**
+
+如果希望让用户可以选择 sslmode，可以修改为：
+
+```go
+// 在 getDSN 方法中
+sslmode := "disable" // 默认值
+if config.SSLMode != "" {
+    sslmode = config.SSLMode
+}
+q.Set("sslmode", sslmode)
+```
+
+然后在 `internal/connection/connection.go` 的 `ConnectionConfig` 结构体中添加字段：
+
+```go
+type ConnectionConfig struct {
+    // ... 现有字段
+    SSLMode string `json:"sslMode,omitempty"` // SSL 模式：disable, require, verify-ca, verify-full
+}
+```
+
+前端 UI 也需要相应添加 sslmode 选择控件。
+
+### 测试建议
+
+修改后请务必测试：
+
+1. **SSL 启用测试**：
+   - 连接配置了 SSL 的 HighGo 服务器
+   - 验证连接成功
+
+2. **SSL 禁用测试**：
+   - 连接未配置 SSL 的 HighGo 服务器
+   - 验证是否会报错（如果设置为 `require` 会报错）
+
+3. **兼容性测试**：
+   - 测试现有的 HighGo 连接配置是否仍然可用
+
+## 二、其他可选优化
+
+### 1. 默认端口提示优化
+
+**文件**：`frontend/src/components/ConnectionModal.tsx`
+
+**当前状态**：HighGo 的默认端口已正确设置为 5866
+
+**建议**：无需修改，已符合官方规范
+
+### 2. 默认数据库名称
+
+**文件**：`internal/db/highgo_impl.go:33`
+
+**当前代码**：
+```go
+if dbname == "" {
+    dbname = "highgo" // HighGo default database
+}
+```
+
+**建议**：无需修改，已符合官方规范（默认数据库为 `highgo`）
+
+### 3. 默认用户名
+
+**当前状态**：未在代码中硬编码默认用户名
+
+**瀚高官方默认**：`sysdba`
+
+**建议**：
+- 可以在前端 UI 的 HighGo 连接表单中，将用户名输入框的 placeholder 设置为 `sysdba`
+- 但不建议硬编码默认值，让用户自行输入更安全
+
+## 三、总结
+
+### 必须修改的项目
+- ✅ **无**（当前代码已基本符合规范）
+
+### 建议修改的项目
+1. **sslmode 配置**（根据实际环境决定）
+   - 开发环境：保持 `disable`
+   - 生产环境：修改为 `require`
+
+### 可选优化的项目
+1. 将 sslmode 改为可配置（需要修改前后端）
+2. 前端 UI 添加 sslmode 选择控件
+3. 用户名输入框添加 `sysdba` 提示
+
+## 四、修改优先级
+
+**优先级 1（高）**：
+- 集成瀚高 SM3 驱动（参考 `HighGo_SM3_Integration_Guide.md`）
+
+**优先级 2（中）**：
+- 根据部署环境调整 sslmode 配置
+
+**优先级 3（低）**：
+- 将 sslmode 改为可配置
+- UI 优化（placeholder 提示等）
+
+## 五、下一步行动
+
+建议按以下顺序执行：
+
+1. **先集成 SM3 驱动**（参考集成指南）
+2. **测试基本连接功能**（使用 sslmode=disable）
+3. **如果生产环境需要 SSL**，再修改 sslmode 配置
+4. **验证所有功能正常**后，考虑可选优化项
+
+---
+
+**注意**：所有代码修改都应该在集成 SM3 驱动并验证基本功能正常后再进行。

docs/HighGo_SM3_Integration_Guide.md

@@ -0,0 +1,179 @@
+# HighGo SM3 国密驱动集成指南
+
+## 一、背景说明
+
+HighGo（瀚高）数据库需要使用支持 SM3 国密认证的 PostgreSQL 驱动。瀚高官方提供了基于 `lib/pq` 的安全增强版本。
+
+## 二、集成步骤
+
+### 步骤 1：下载瀚高 pq 驱动
+
+1. 访问百度网盘链接：
+   ```
+   https://pan.baidu.com/s/1xuz6uJz0utRgKWecXhpOiA?pwd=o0tj
+   ```
+
+2. 下载驱动源码压缩包
+
+### 步骤 2：放置驱动源码
+
+1. 在项目根目录创建 vendor 目录（如果不存在）：
+   ```bash
+   mkdir -p vendor/highgo-pq
+   ```
+
+2. 解压下载的驱动源码到 `vendor/highgo-pq/` 目录
+
+3. 确保目录结构如下：
+   ```
+   GoNavi/
+   ├── vendor/
+   │   └── highgo-pq/
+   │       ├── go.mod
+   │       ├── conn.go
+   │       ├── ... (其他 pq 驱动源文件)
+   ```
+
+### 步骤 3：修改 go.mod
+
+在 `go.mod` 文件末尾添加 replace 指令：
+
+```go
+replace github.com/lib/pq => ./vendor/highgo-pq
+```
+
+完整示例：
+```go
+module GoNavi-Wails
+
+go 1.24.3
+
+require (
+    // ... 现有依赖
+    github.com/lib/pq v1.11.1
+    // ... 其他依赖
+)
+
+// 在文件末尾添加
+replace github.com/lib/pq => ./vendor/highgo-pq
+```
+
+### 步骤 4：更新 HighGo 连接配置（可选）
+
+根据瀚高官方文档，建议修改 `internal/db/highgo_impl.go:43` 的 sslmode：
+
+**当前代码**：
+```go
+q.Set("sslmode", "disable")
+```
+
+**建议修改为**（瀚高默认）：
+```go
+q.Set("sslmode", "require")
+```
+
+> ⚠️ 注意：如果您的 HighGo 服务器未配置 SSL，保持 `disable` 即可。
+
+### 步骤 5：验证集成
+
+1. 清理依赖缓存：
+   ```bash
+   go clean -modcache
+   ```
+
+2. 重新下载依赖：
+   ```bash
+   go mod download
+   ```
+
+3. 编译项目：
+   ```bash
+   go build ./...
+   ```
+
+4. 测试 HighGo 连接：
+   - 启动应用
+   - 创建 HighGo 连接
+   - 测试连接是否成功
+
+## 三、重要说明
+
+### ⚠️ 影响范围
+
+使用 `go.mod replace` 会**全局替换** `github.com/lib/pq` 驱动，这意味着：
+
+1. **PostgreSQL 连接也会使用瀚高驱动**
+2. **需要验证瀚高驱动对标准 PostgreSQL 的兼容性**
+
+### 兼容性验证
+
+集成后，请务必测试：
+
+1. ✅ HighGo 数据库连接（SM3 认证）
+2. ✅ 标准 PostgreSQL 连接（确保仍然可用）
+
+如果标准 PostgreSQL 连接失败，说明瀚高驱动不完全兼容，需要考虑其他方案。
+
+### 回滚方案
+
+如果集成后出现问题，可以快速回滚：
+
+1. 删除 `go.mod` 中的 replace 指令
+2. 删除 `vendor/highgo-pq/` 目录
+3. 运行 `go mod tidy`
+4. 重新编译
+
+## 四、瀚高驱动特性
+
+根据官方文档：
+
+- **包路径**：`github.com/lib/pq`（与标准版相同）
+- **驱动名**：`postgres`（与标准版相同）
+- **SM3 支持**：自动启用国密认证
+- **默认端口**：5866
+- **默认数据库**：`highgo`
+- **默认用户**：`sysdba`
+- **sslmode 默认**：`require`
+
+## 五、故障排查
+
+### 问题 1：编译失败
+
+**现象**：`go build` 报错找不到 `github.com/lib/pq`
+
+**解决**：
+1. 检查 `vendor/highgo-pq/` 目录是否存在
+2. 检查 `go.mod` 中 replace 路径是否正确
+3. 运行 `go mod download`
+
+### 问题 2：HighGo 连接失败
+
+**现象**：连接 HighGo 时报认证错误
+
+**解决**：
+1. 确认瀚高驱动已正确替换（检查 `go.mod`）
+2. 确认 HighGo 服务器支持 SM3 认证
+3. 检查用户名、密码、端口是否正确
+
+### 问题 3：PostgreSQL 连接失败
+
+**现象**：集成后标准 PostgreSQL 无法连接
+
+**解决**：
+1. 这说明瀚高驱动不完全兼容标准 PostgreSQL
+2. 需要考虑条件编译或其他隔离方案
+3. 临时回滚：删除 replace 指令
+
+## 六、后续优化建议
+
+如果发现瀚高驱动与标准 PostgreSQL 不兼容，可以考虑：
+
+1. **条件编译**：使用 Go build tags 分别编译两个版本
+2. **动态驱动注册**：如果瀚高驱动支持自定义驱动名
+3. **联系瀚高技术支持**：咨询官方兼容性方案
+
+## 七、参考资料
+
+- 瀚高官方文档：https://www.highgo.com/document/zh-cn/application/pq%E6%8E%A5%E5%8F%A3.html
+- 瀚高驱动下载：https://pan.baidu.com/s/1xuz6uJz0utRgKWecXhpOiA?pwd=o0tj
+- 标准 lib/pq：https://github.com/lib/pq

frontend/src/App.css

@@ -67,6 +67,11 @@ body[data-theme='dark'] {
     text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
 }
 
+/* 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;
+}
+
 /* Custom Title Bar Close Button Hover */
 .titlebar-close-btn:hover {
     background-color: #ff4d4f !important;

frontend/src/App.tsx

@@ -10,7 +10,7 @@ import DataSyncModal from './components/DataSyncModal';
 import LogPanel from './components/LogPanel';
 import { useStore } from './store';
 import { SavedConnection } from './types';
-import { blurToFilter, normalizeBlurForPlatform, normalizeOpacityForPlatform } from './utils/appearance';
+import { blurToFilter, normalizeBlurForPlatform, normalizeOpacityForPlatform, isWindowsPlatform } from './utils/appearance';
 import './App.css';
 
 const { Sider, Content } = Layout;
@@ -669,7 +669,7 @@ function App() {
           <Sider 
             width={sidebarWidth} 
             style={{ 
-                borderRight: 'none', 
+                borderRight: '1px solid rgba(128,128,128,0.2)',
                 position: 'relative',
                 background: bgMain
             }}
@@ -814,19 +814,27 @@ function App() {
                   </div>
                   <div>
                       <div style={{ marginBottom: 8, fontWeight: 500 }}>高斯模糊 (Blur)</div>
-                      <div style={{ display: 'flex', alignItems: 'center', gap: 16 }}>
-                          <Slider 
-                            min={0} 
-                            max={20} 
-                            value={appearance.blur ?? 0} 
-                            onChange={(v) => setAppearance({ blur: v })} 
-                            style={{ flex: 1 }}
-                          />
-                          <span style={{ width: 40 }}>{appearance.blur}px</span>
-                      </div>
-                      <div style={{ fontSize: 12, color: '#888', marginTop: 4 }}>
-                          * 仅控制应用内覆盖层的模糊效果
-                      </div>
+                      {isWindowsPlatform() ? (
+                          <div style={{ fontSize: 12, color: '#888' }}>
+                              Windows 使用系统 Acrylic 效果，模糊程度由系统控制
+                          </div>
+                      ) : (
+                          <>
+                              <div style={{ display: 'flex', alignItems: 'center', gap: 16 }}>
+                                  <Slider
+                                    min={0}
+                                    max={20}
+                                    value={appearance.blur ?? 0}
+                                    onChange={(v) => setAppearance({ blur: v })}
+                                    style={{ flex: 1 }}
+                                  />
+                                  <span style={{ width: 40 }}>{appearance.blur}px</span>
+                              </div>
+                              <div style={{ fontSize: 12, color: '#888', marginTop: 4 }}>
+                                  * 仅控制应用内覆盖层的模糊效果
+                              </div>
+                          </>
+                      )}
                   </div>
               </div>
           </Modal>

frontend/src/components/DataGrid.tsx

@@ -1,21 +1,85 @@
 import React, { useState, useEffect, useRef, useContext, useMemo, useCallback } from 'react';
 import { createPortal } from 'react-dom';
-import { Table, message, Input, Button, Dropdown, MenuProps, Form, Pagination, Select, Modal } from 'antd';
+import { Table, message, Input, Button, Dropdown, MenuProps, Form, Pagination, Select, Modal, Checkbox } from 'antd';
 import type { SortOrder } from 'antd/es/table/interface';
-import { ReloadOutlined, ImportOutlined, ExportOutlined, DownOutlined, PlusOutlined, DeleteOutlined, SaveOutlined, UndoOutlined, FilterOutlined, CloseOutlined, ConsoleSqlOutlined, FileTextOutlined, CopyOutlined, ClearOutlined, EditOutlined } from '@ant-design/icons';
+import { ReloadOutlined, ImportOutlined, ExportOutlined, DownOutlined, PlusOutlined, DeleteOutlined, SaveOutlined, UndoOutlined, FilterOutlined, CloseOutlined, ConsoleSqlOutlined, FileTextOutlined, CopyOutlined, ClearOutlined, EditOutlined, VerticalAlignBottomOutlined } from '@ant-design/icons';
 import Editor from '@monaco-editor/react';
 import { ImportData, ExportTable, ExportData, ExportQuery, ApplyChanges } from '../../wailsjs/go/app/App';
 import { useStore } from '../store';
 import { v4 as uuidv4 } from 'uuid';
 import 'react-resizable/css/styles.css';
-import { buildWhereSQL, escapeLiteral, quoteIdentPart, quoteQualifiedIdent } from '../utils/sql';
+import { buildWhereSQL, escapeLiteral, quoteIdentPart, quoteQualifiedIdent, type FilterCondition } from '../utils/sql';
 import { blurToFilter, normalizeBlurForPlatform, normalizeOpacityForPlatform } from '../utils/appearance';
 
+// --- Error Boundary ---
+interface DataGridErrorBoundaryState {
+    hasError: boolean;
+    error: Error | null;
+}
+
+class DataGridErrorBoundary extends React.Component<
+    { children: React.ReactNode },
+    DataGridErrorBoundaryState
+> {
+    constructor(props: { children: React.ReactNode }) {
+        super(props);
+        this.state = { hasError: false, error: null };
+    }
+
+    static getDerivedStateFromError(error: Error): DataGridErrorBoundaryState {
+        return { hasError: true, error };
+    }
+
+    componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
+        console.error('DataGrid render error:', error, errorInfo);
+    }
+
+    render() {
+        if (this.state.hasError) {
+            return (
+                <div style={{ padding: 16, color: '#ff4d4f' }}>
+                    <h4>渲染错误</h4>
+                    <p>数据表格渲染时发生错误，可能是数据格式问题。</p>
+                    <pre style={{ fontSize: 12, whiteSpace: 'pre-wrap', wordBreak: 'break-all' }}>
+                        {this.state.error?.message}
+                    </pre>
+                    <Button
+                        size="small"
+                        onClick={() => this.setState({ hasError: false, error: null })}
+                    >
+                        重试
+                    </Button>
+                </div>
+            );
+        }
+        return this.props.children;
+    }
+}
+
 // 内部行标识字段：避免与真实业务字段（如 `key` 列）冲突。
 export const GONAVI_ROW_KEY = '__gonavi_row_key__';
 
+// Cell key helpers for batch selection/fill.
+// Use a control character separator to avoid collisions with rowKey/columnName contents (e.g. `new-123`).
+const CELL_KEY_SEP = '\u0001';
+const makeCellKey = (rowKey: string, colName: string) => `${rowKey}${CELL_KEY_SEP}${colName}`;
+const splitCellKey = (cellKey: string): { rowKey: string; colName: string } | null => {
+    const sepIndex = cellKey.indexOf(CELL_KEY_SEP);
+    if (sepIndex === -1) return null;
+    return {
+        rowKey: cellKey.slice(0, sepIndex),
+        colName: cellKey.slice(sepIndex + CELL_KEY_SEP.length),
+    };
+};
+
 // Normalize RFC3339-like datetime strings to `YYYY-MM-DD HH:mm:ss` for display/editing.
+// Also handle invalid datetime values like '0000-00-00 00:00:00'
 const normalizeDateTimeString = (val: string) => {
+    // 检查是否为无效日期时间（0000-00-00 或类似格式）
+    if (/^0{4}-0{2}-0{2}/.test(val)) {
+        return val; // 保持原样显示，不尝试转换
+    }
+
     const match = val.match(/^(\d{4}-\d{2}-\d{2})T(\d{2}:\d{2}:\d{2})/);
     if (!match) return val;
     return `${match[1]} ${match[2]}`;
@@ -23,12 +87,23 @@ const normalizeDateTimeString = (val: string) => {
 
 // --- Helper: Format Value ---
 const formatCellValue = (val: any) => {
-    if (val === null) return <span style={{ color: '#ccc' }}>NULL</span>;
-    if (typeof val === 'object') return JSON.stringify(val);
-    if (typeof val === 'string') {
-        return normalizeDateTimeString(val);
+    try {
+        if (val === null) return <span style={{ color: '#ccc' }}>NULL</span>;
+        if (typeof val === 'object') {
+            try {
+                return JSON.stringify(val);
+            } catch {
+                return '[Object]';
+            }
+        }
+        if (typeof val === 'string') {
+            return normalizeDateTimeString(val);
+        }
+        return String(val);
+    } catch (e) {
+        console.error('formatCellValue error:', e);
+        return '[Error]';
     }
-    return String(val);
 };
 
 const toEditableText = (val: any): string => {
@@ -47,6 +122,14 @@ const toFormText = (val: any): string => {
     return toEditableText(val);
 };
 
+// 用于变更比较：NULL 与 undefined 视为同类空值；与空字符串严格区分。
+const isCellValueEqualForDiff = (left: any, right: any): boolean => {
+    const leftNullish = left === null || left === undefined;
+    const rightNullish = right === null || right === undefined;
+    if (leftNullish || rightNullish) return leftNullish && rightNullish;
+    return toFormText(left) === toFormText(right);
+};
+
 const INLINE_EDIT_MAX_CHARS = 2000;
 
 const shouldOpenModalEditor = (val: any): boolean => {
@@ -129,6 +212,7 @@ const ResizableTitle = (props: any) => {
 const EditableContext = React.createContext<any>(null);
 const CellContextMenuContext = React.createContext<{
     showMenu: (e: React.MouseEvent, record: Item, dataIndex: string, title: React.ReactNode) => void;
+    handleBatchFillToSelected: (record: Item, dataIndex: string) => void;
 } | null>(null);
 const DataContext = React.createContext<{
     selectedRowKeysRef: React.MutableRefObject<React.Key[]>;
@@ -168,7 +252,6 @@ const EditableCell: React.FC<EditableCellProps> = React.memo(({
 }) => {
   const [editing, setEditing] = useState(false);
   const inputRef = useRef<any>(null);
-  const cellRef = useRef<HTMLTableCellElement>(null);
   const form = useContext(EditableContext);
   const cellContextMenuContext = useContext(CellContextMenuContext);
 
@@ -192,11 +275,9 @@ const EditableCell: React.FC<EditableCellProps> = React.memo(({
       const fieldName = getCellFieldName(record, dataIndex);
       await form.validateFields([fieldName]);
       const nextValue = form.getFieldValue(fieldName);
-      const prevText = toFormText(record?.[dataIndex]);
-      const nextText = toFormText(nextValue);
       toggleEdit();
       // 仅当值发生变化时才标记为修改，避免“双击-失焦”导致整行进入 modified 状态（蓝色高亮不清除）。
-      if (nextText !== prevText) {
+      if (!isCellValueEqualForDiff(record?.[dataIndex], nextValue)) {
         handleSave({ ...record, [dataIndex]: nextValue });
       }
       // 保存后移除焦点
@@ -247,7 +328,7 @@ const EditableCell: React.FC<EditableCellProps> = React.memo(({
     ) : (
       <div
         className="editable-cell-value-wrap"
-        style={{ paddingRight: 24, minHeight: 20 }}
+        style={{ paddingRight: 24, minHeight: 20, position: 'relative' }}
         onContextMenu={handleContextMenu}
       >
         {children}
@@ -270,7 +351,8 @@ const EditableCell: React.FC<EditableCellProps> = React.memo(({
   return (
       <td
           {...restProps}
-          ref={cellRef}
+          data-row-key={record ? String(record?.[GONAVI_ROW_KEY]) : undefined}
+          data-col-name={dataIndex || undefined}
           onDoubleClick={editable ? handleDoubleClick : restProps?.onDoubleClick}
       >
           {childNode}
@@ -348,9 +430,17 @@ interface DataGridProps {
     // Filtering
     showFilter?: boolean;
     onToggleFilter?: () => void;
-    onApplyFilter?: (conditions: any[]) => void;
+    onApplyFilter?: (conditions: GridFilterCondition[]) => void;
 }
 
+type GridFilterCondition = FilterCondition & {
+    id: number;
+    column: string;
+    op: string;
+    value: string;
+    value2?: string;
+};
+
 const DataGrid: React.FC<DataGridProps> = ({ 
     data, columnNames, loading, tableName, dbName, connectionId, pkColumns = [], readOnly = false,
     onReload, onSort, onPageChange, pagination, showFilter, onToggleFilter, onApplyFilter
@@ -395,7 +485,7 @@ const DataGrid: React.FC<DataGridProps> = ({
   const cellEditorApplyRef = useRef<((val: string) => void) | null>(null);
   const [rowEditorOpen, setRowEditorOpen] = useState(false);
   const [rowEditorRowKey, setRowEditorRowKey] = useState<string>('');
-  const rowEditorBaseRef = useRef<Record<string, string>>({});
+  const rowEditorBaseRawRef = useRef<Record<string, any>>({});
   const rowEditorDisplayRef = useRef<Record<string, string>>({});
   const rowEditorNullColsRef = useRef<Set<string>>(new Set());
   const [rowEditorForm] = Form.useForm();
@@ -420,6 +510,21 @@ const DataGrid: React.FC<DataGridProps> = ({
   const containerRef = useRef<HTMLDivElement>(null);
   const pendingScrollToBottomRef = useRef(false);
 
+  // 批量编辑模式状态
+  const [cellEditMode, setCellEditMode] = useState(false);
+  const [selectedCells, setSelectedCells] = useState<Set<string>>(new Set());
+  const [batchEditModalOpen, setBatchEditModalOpen] = useState(false);
+  const [batchEditValue, setBatchEditValue] = useState('');
+  const [batchEditSetNull, setBatchEditSetNull] = useState(false);
+
+  // 使用 ref 来优化拖拽性能，完全避免状态更新
+  const cellSelectionRafRef = useRef<number | null>(null);
+  const cellSelectionScrollRafRef = useRef<number | null>(null);
+  const isDraggingRef = useRef(false);
+  const currentSelectionRef = useRef<Set<string>>(new Set());
+  const selectionStartRef = useRef<{ rowKey: string; colName: string; rowIndex: number; colIndex: number } | null>(null);
+  const rowIndexMapRef = useRef<Map<string, number>>(new Map());
+
   const scrollTableBodyToBottom = useCallback(() => {
       const root = containerRef.current;
       if (!root) return;
@@ -544,7 +649,7 @@ const DataGrid: React.FC<DataGridProps> = ({
   const [deletedRowKeys, setDeletedRowKeys] = useState<Set<string>>(new Set());
 
   // Filter State
-  const [filterConditions, setFilterConditions] = useState<{ id: number, column: string, op: string, value: string, value2?: string }[]>([]);
+  const [filterConditions, setFilterConditions] = useState<GridFilterCondition[]>([]);
   const [nextFilterId, setNextFilterId] = useState(1);
 
   const selectedRowKeysRef = useRef(selectedRowKeys);
@@ -570,7 +675,7 @@ const DataGrid: React.FC<DataGridProps> = ({
       setSelectedRowKeys([]);
       setRowEditorOpen(false);
       setRowEditorRowKey('');
-      rowEditorBaseRef.current = {};
+      rowEditorBaseRawRef.current = {};
       rowEditorDisplayRef.current = {};
       rowEditorNullColsRef.current = new Set();
       rowEditorForm.resetFields();
@@ -580,6 +685,317 @@ const DataGrid: React.FC<DataGridProps> = ({
 
   const rowKeyStr = useCallback((k: React.Key) => String(k), []);
 
+  const columnIndexMap = useMemo(() => {
+    const map = new Map<string, number>();
+    columnNames.forEach((name, idx) => map.set(name, idx));
+    return map;
+  }, [columnNames]);
+
+  // 直接操作 DOM 更新选中效果，避免 React 重渲染
+  const updateCellSelection = useCallback((newSelection: Set<string>) => {
+    const tableBody = containerRef.current?.querySelector('.ant-table-body');
+    if (!tableBody) return;
+
+    // 只同步可见单元格（兼容 virtual 渲染 + 极大选区）
+    const visibleCells = tableBody.querySelectorAll('td[data-row-key][data-col-name]');
+    visibleCells.forEach((cell) => {
+      const el = cell as HTMLElement;
+      const rowKey = el.getAttribute('data-row-key');
+      const colName = el.getAttribute('data-col-name');
+      if (!rowKey || !colName) return;
+      const key = makeCellKey(rowKey, colName);
+      if (newSelection.has(key)) {
+        if (el.getAttribute('data-cell-selected') !== 'true') el.setAttribute('data-cell-selected', 'true');
+      } else {
+        if (el.hasAttribute('data-cell-selected')) el.removeAttribute('data-cell-selected');
+      }
+    });
+  }, []);
+
+  // 批量填充选中的单元格
+  const handleBatchFillCells = useCallback(() => {
+    const cellsToFill = currentSelectionRef.current;
+    if (cellsToFill.size === 0) {
+      message.info('请先选择要填充的单元格');
+      return;
+    }
+
+    const fillValue = batchEditSetNull ? null : batchEditValue;
+
+    const addedRowMap = new Map<string, any>();
+    addedRows.forEach((r) => {
+      const k = r?.[GONAVI_ROW_KEY];
+      if (k === undefined) return;
+      addedRowMap.set(rowKeyStr(k), r);
+    });
+
+    const baseRowMap = new Map<string, any>();
+    displayDataRef.current.forEach((r) => {
+      const k = r?.[GONAVI_ROW_KEY];
+      if (k === undefined) return;
+      baseRowMap.set(rowKeyStr(k), r);
+    });
+
+    const patchesByRow = new Map<string, Record<string, any>>();
+    let updatedCount = 0;
+
+    cellsToFill.forEach((cellKey) => {
+      const parts = splitCellKey(cellKey);
+      if (!parts) return;
+      const { rowKey, colName } = parts;
+
+      const existing = modifiedRows[rowKey];
+      const baseRow = baseRowMap.get(rowKey);
+      let currentVal: any = undefined;
+
+      const addedRow = addedRowMap.get(rowKey);
+      if (addedRow) {
+        currentVal = addedRow?.[colName];
+      } else if (existing && Object.prototype.hasOwnProperty.call(existing as any, GONAVI_ROW_KEY)) {
+        currentVal = (existing as any)?.[colName];
+      } else if (existing && Object.prototype.hasOwnProperty.call(existing as any, colName)) {
+        currentVal = (existing as any)?.[colName];
+      } else {
+        currentVal = baseRow?.[colName];
+      }
+
+      const isSame = isCellValueEqualForDiff(currentVal, fillValue);
+      if (isSame) return;
+
+      const patch = patchesByRow.get(rowKey) || {};
+      patch[colName] = fillValue;
+      patchesByRow.set(rowKey, patch);
+      updatedCount++;
+    });
+
+    if (updatedCount === 0) {
+      message.info('选中的单元格无需更新');
+      return;
+    }
+
+    // 仅做一次状态提交，避免大量 setState 循环
+    setAddedRows(prev => prev.map(r => {
+      const k = r?.[GONAVI_ROW_KEY];
+      if (k === undefined) return r;
+      const patch = patchesByRow.get(rowKeyStr(k));
+      if (!patch) return r;
+      return { ...r, ...patch };
+    }));
+
+    setModifiedRows(prev => {
+      let next: Record<string, any> | null = null;
+
+      patchesByRow.forEach((patch, keyStr) => {
+        if (addedRowMap.has(keyStr)) return;
+
+        const existing = prev[keyStr];
+        const merged = existing ? { ...(existing as any), ...patch } : patch;
+        if (!next) next = { ...prev };
+        next[keyStr] = merged;
+      });
+
+      return next || prev;
+    });
+
+    message.success(`已填充 ${updatedCount} 个单元格`);
+    setBatchEditModalOpen(false);
+
+    // 清除选中状态
+    setSelectedCells(new Set());
+    currentSelectionRef.current = new Set();
+    selectionStartRef.current = null;
+    isDraggingRef.current = false;
+    updateCellSelection(new Set());
+  }, [batchEditValue, batchEditSetNull, addedRows, modifiedRows, rowKeyStr, updateCellSelection]);
+
+  // 事件委托：在容器级别处理批量编辑模式的鼠标事件
+  useEffect(() => {
+    if (!cellEditMode) return;
+
+    const container = containerRef.current;
+    if (!container) return;
+
+    const getCellInfo = (target: HTMLElement): { rowKey: string; colName: string } | null => {
+      const td = target.closest('td[data-row-key][data-col-name]') as HTMLElement;
+      if (!td) return null;
+      const rowKey = td.getAttribute('data-row-key');
+      const colName = td.getAttribute('data-col-name');
+      if (!rowKey || !colName) return null;
+      return { rowKey, colName };
+    };
+
+    const onMouseDown = (e: MouseEvent) => {
+      const cellInfo = getCellInfo(e.target as HTMLElement);
+      if (!cellInfo) return;
+
+      e.preventDefault();
+      isDraggingRef.current = true;
+      const currentData = displayDataRef.current;
+      const nextRowIndexMap = new Map<string, number>();
+      currentData.forEach((r, idx) => {
+        const k = r?.[GONAVI_ROW_KEY];
+        if (k === undefined) return;
+        nextRowIndexMap.set(String(k), idx);
+      });
+      rowIndexMapRef.current = nextRowIndexMap;
+
+      const startRowIndex = nextRowIndexMap.get(cellInfo.rowKey) ?? -1;
+      const startColIndex = columnIndexMap.get(cellInfo.colName) ?? -1;
+      selectionStartRef.current = { rowKey: cellInfo.rowKey, colName: cellInfo.colName, rowIndex: startRowIndex, colIndex: startColIndex };
+      currentSelectionRef.current = new Set([makeCellKey(cellInfo.rowKey, cellInfo.colName)]);
+      updateCellSelection(currentSelectionRef.current);
+    };
+
+    const onMouseMove = (e: MouseEvent) => {
+      if (!isDraggingRef.current || !selectionStartRef.current) return;
+
+      const cellInfo = getCellInfo(e.target as HTMLElement);
+      if (!cellInfo) return;
+
+      // 使用 RAF 节流
+      if (cellSelectionRafRef.current !== null) {
+        cancelAnimationFrame(cellSelectionRafRef.current);
+      }
+
+      cellSelectionRafRef.current = requestAnimationFrame(() => {
+        cellSelectionRafRef.current = null;
+        const start = selectionStartRef.current;
+        if (!start) return;
+
+        const currentData = displayDataRef.current;
+        const rowIndexMap = rowIndexMapRef.current;
+        const startRowIndex = start.rowIndex;
+        const endRowIndex = rowIndexMap.get(cellInfo.rowKey) ?? -1;
+        if (startRowIndex === -1 || endRowIndex === -1) return;
+
+        const startColIndex = start.colIndex;
+        const endColIndex = columnIndexMap.get(cellInfo.colName) ?? -1;
+        if (startColIndex === -1 || endColIndex === -1) return;
+
+        const minRowIndex = Math.min(startRowIndex, endRowIndex);
+        const maxRowIndex = Math.max(startRowIndex, endRowIndex);
+        const minColIndex = Math.min(startColIndex, endColIndex);
+        const maxColIndex = Math.max(startColIndex, endColIndex);
+
+        const newSelectedCells = new Set<string>();
+        for (let i = minRowIndex; i <= maxRowIndex; i++) {
+          const row = currentData[i];
+          const rKey = String(row?.[GONAVI_ROW_KEY]);
+          for (let j = minColIndex; j <= maxColIndex; j++) {
+            newSelectedCells.add(makeCellKey(rKey, columnNames[j]));
+          }
+        }
+
+        currentSelectionRef.current = newSelectedCells;
+        updateCellSelection(newSelectedCells);
+      });
+    };
+
+    const onMouseUp = () => {
+      if (!isDraggingRef.current) return;
+      isDraggingRef.current = false;
+
+      if (cellSelectionRafRef.current !== null) {
+        cancelAnimationFrame(cellSelectionRafRef.current);
+        cellSelectionRafRef.current = null;
+      }
+
+      if (currentSelectionRef.current.size > 0) {
+        setSelectedCells(new Set(currentSelectionRef.current));
+      }
+    };
+
+    const onScroll = () => {
+      if (currentSelectionRef.current.size === 0) return;
+      if (cellSelectionScrollRafRef.current !== null) {
+        cancelAnimationFrame(cellSelectionScrollRafRef.current);
+      }
+      cellSelectionScrollRafRef.current = requestAnimationFrame(() => {
+        cellSelectionScrollRafRef.current = null;
+        updateCellSelection(currentSelectionRef.current);
+      });
+    };
+
+    container.addEventListener('mousedown', onMouseDown);
+    container.addEventListener('mousemove', onMouseMove);
+    container.addEventListener('scroll', onScroll, true);
+    document.addEventListener('mouseup', onMouseUp);
+
+    return () => {
+      container.removeEventListener('mousedown', onMouseDown);
+      container.removeEventListener('mousemove', onMouseMove);
+      container.removeEventListener('scroll', onScroll, true);
+      document.removeEventListener('mouseup', onMouseUp);
+      if (cellSelectionRafRef.current !== null) {
+        cancelAnimationFrame(cellSelectionRafRef.current);
+        cellSelectionRafRef.current = null;
+      }
+      if (cellSelectionScrollRafRef.current !== null) {
+        cancelAnimationFrame(cellSelectionScrollRafRef.current);
+        cellSelectionScrollRafRef.current = null;
+      }
+      isDraggingRef.current = false;
+    };
+  }, [cellEditMode, columnNames, columnIndexMap, updateCellSelection]);
+
+  // 批量填充到选中行
+  const handleBatchFillToSelected = useCallback((sourceRecord: Item, dataIndex: string) => {
+    const sourceValue = sourceRecord[dataIndex];
+    const selKeys = selectedRowKeysRef.current;
+
+    if (selKeys.length === 0) {
+      message.info('请先选择要填充的行');
+      return;
+    }
+
+    const sourceKey = sourceRecord?.[GONAVI_ROW_KEY];
+    // 过滤掉源行本身
+    const targetKeys = selKeys.filter(k => k !== sourceKey);
+
+    if (targetKeys.length === 0) {
+      message.info('没有其他选中的行可以填充');
+      return;
+    }
+
+    // 批量更新
+    const addedKeySet = new Set<string>();
+    addedRows.forEach((r) => {
+      const k = r?.[GONAVI_ROW_KEY];
+      if (k === undefined) return;
+      addedKeySet.add(rowKeyStr(k));
+    });
+
+    const targetKeyStrList = targetKeys.map(rowKeyStr);
+    const targetKeyStrSet = new Set(targetKeyStrList);
+    const updatedCount = targetKeyStrSet.size;
+
+    setAddedRows(prev => prev.map(r => {
+      const k = r?.[GONAVI_ROW_KEY];
+      if (k === undefined) return r;
+      const keyStr = rowKeyStr(k);
+      if (!targetKeyStrSet.has(keyStr)) return r;
+      return { ...r, [dataIndex]: sourceValue };
+    }));
+
+    setModifiedRows(prev => {
+      let next: Record<string, any> | null = null;
+
+      targetKeyStrSet.forEach((keyStr) => {
+        if (addedKeySet.has(keyStr)) return;
+        const existing = prev[keyStr];
+        const patch = { [dataIndex]: sourceValue };
+        const merged = existing ? { ...(existing as any), ...patch } : patch;
+        if (!next) next = { ...prev };
+        next[keyStr] = merged;
+      });
+
+      return next || prev;
+    });
+
+    message.success(`已填充 ${updatedCount} 行`);
+    setCellContextMenu(prev => ({ ...prev, visible: false }));
+  }, [addedRows, rowKeyStr]);
+
   const displayData = useMemo(() => {
       return [...data, ...addedRows].filter(item => {
           const k = item?.[GONAVI_ROW_KEY];
@@ -780,7 +1196,7 @@ const DataGrid: React.FC<DataGridProps> = ({
   const closeRowEditor = useCallback(() => {
       setRowEditorOpen(false);
       setRowEditorRowKey('');
-      rowEditorBaseRef.current = {};
+      rowEditorBaseRawRef.current = {};
       rowEditorDisplayRef.current = {};
       rowEditorNullColsRef.current = new Set();
       rowEditorForm.resetFields();
@@ -811,23 +1227,25 @@ const DataGrid: React.FC<DataGridProps> = ({
           addedRows.find(r => rowKeyStr(r?.[GONAVI_ROW_KEY]) === keyStr) ||
           displayRow;
 
-      const baseMap: Record<string, string> = {};
+      const baseRawMap: Record<string, any> = {};
       const displayMap: Record<string, string> = {};
+      const formMap: Record<string, any> = {};
       const nullCols = new Set<string>();
 
       columnNames.forEach((col) => {
           const baseVal = (baseRow as any)?.[col];
           const displayVal = (displayRow as any)?.[col];
-          baseMap[col] = toFormText(baseVal);
+          baseRawMap[col] = baseVal;
           displayMap[col] = toFormText(displayVal);
+          formMap[col] = displayVal === null || displayVal === undefined ? undefined : toFormText(displayVal);
           if (baseVal === null || baseVal === undefined) nullCols.add(col);
       });
 
-      rowEditorBaseRef.current = baseMap;
+      rowEditorBaseRawRef.current = baseRawMap;
       rowEditorDisplayRef.current = displayMap;
       rowEditorNullColsRef.current = nullCols;
 
-      rowEditorForm.setFieldsValue(displayMap);
+      rowEditorForm.setFieldsValue(formMap);
       setRowEditorRowKey(keyStr);
       setRowEditorOpen(true);
   }, [readOnly, tableName, selectedRowKeys, mergedDisplayData, data, addedRows, columnNames, rowEditorForm, rowKeyStr]);
@@ -855,13 +1273,12 @@ const DataGrid: React.FC<DataGridProps> = ({
           return;
       }
 
-      const baseMap = rowEditorBaseRef.current || {};
+      const baseRawMap = rowEditorBaseRawRef.current || {};
       const patch: Record<string, any> = {};
       columnNames.forEach((col) => {
           const nextVal = values[col];
-          const nextStr = toFormText(nextVal);
-          const baseStr = baseMap[col] ?? '';
-          if (nextStr !== baseStr) patch[col] = nextStr;
+          const baseVal = baseRawMap[col];
+          if (!isCellValueEqualForDiff(baseVal, nextVal)) patch[col] = nextVal;
       });
 
       setModifiedRows(prev => {
@@ -966,9 +1383,7 @@ const DataGrid: React.FC<DataGridProps> = ({
               columnNames.forEach((col) => {
                   const nextVal = (newRow as any)?.[col];
                   const prevVal = (originalRow as any)?.[col];
-                  const nextStr = toFormText(nextVal);
-                  const prevStr = toFormText(prevVal);
-                  if (nextStr !== prevStr) values[col] = nextVal;
+                  if (!isCellValueEqualForDiff(prevVal, nextVal)) values[col] = nextVal;
               });
           }
 
@@ -1273,18 +1688,19 @@ const DataGrid: React.FC<DataGridProps> = ({
   const isListOp = useCallback((op: string) => op === 'IN' || op === 'NOT_IN', []);
 
   const addFilter = () => {
-      setFilterConditions([...filterConditions, { id: nextFilterId, column: columnNames[0] || '', op: '=', value: '', value2: '' }]);
+      setFilterConditions([...filterConditions, { id: nextFilterId, enabled: true, column: columnNames[0] || '', op: '=', value: '', value2: '' }]);
       setNextFilterId(nextFilterId + 1);
   };
-  const updateFilter = (id: number, field: string, val: string) => {
+  const updateFilter = (id: number, field: keyof GridFilterCondition, val: string | boolean) => {
       setFilterConditions(prev => prev.map(c => {
           if (c.id !== id) return c;
-          const next: any = { ...c, [field]: val };
+          const next: GridFilterCondition = { ...c, [field]: val } as GridFilterCondition;
           if (field === 'op') {
-              if (isNoValueOp(val)) {
+              const nextOp = String(val);
+              if (isNoValueOp(nextOp)) {
                   next.value = '';
                   next.value2 = '';
-              } else if (isBetweenOp(val)) {
+              } else if (isBetweenOp(nextOp)) {
                   if (typeof next.value2 !== 'string') next.value2 = '';
               } else {
                   next.value2 = '';
@@ -1316,7 +1732,7 @@ const DataGrid: React.FC<DataGridProps> = ({
   const enableVirtual = mergedDisplayData.length >= 200;
 
   return (
-    <div className={gridId} style={{ flex: '1 1 auto', height: '100%', overflow: 'hidden', padding: 0, display: 'flex', flexDirection: 'column', minHeight: 0, background: bgContent, backdropFilter: blurFilter, WebkitBackdropFilter: blurFilter }}>
+    <div className={`${gridId}${cellEditMode ? ' cell-edit-mode' : ''}`} ref={containerRef} style={{ flex: '1 1 auto', height: '100%', overflow: 'hidden', padding: 0, display: 'flex', flexDirection: 'column', minHeight: 0, background: bgContent, backdropFilter: blurFilter, WebkitBackdropFilter: blurFilter }}>
 	       {/* Toolbar */}
 	        <div style={{ padding: '8px', borderBottom: '1px solid #eee', display: 'flex', gap: 8, alignItems: 'center' }}>
 	            {onReload && <Button icon={<ReloadOutlined />} disabled={loading} onClick={() => {
@@ -1342,6 +1758,46 @@ const DataGrid: React.FC<DataGridProps> = ({
                        </Button>
 	                   <Button icon={<DeleteOutlined />} danger disabled={selectedRowKeys.length === 0} onClick={handleDeleteSelected}>删除选中</Button>
 	                   {selectedRowKeys.length > 0 && <span style={{ fontSize: '12px', color: '#888' }}>已选 {selectedRowKeys.length}</span>}
+	                   <div style={{ width: 1, background: '#eee', height: 20, margin: '0 8px' }} />
+	                   <Button
+                            icon={<EditOutlined />}
+                            type={cellEditMode ? 'primary' : 'default'}
+                            onClick={() => {
+                                const next = !cellEditMode;
+                                setCellEditMode(next);
+                                setSelectedCells(new Set());
+                                currentSelectionRef.current = new Set();
+                                selectionStartRef.current = null;
+                                isDraggingRef.current = false;
+                                if (cellSelectionRafRef.current !== null) {
+                                    cancelAnimationFrame(cellSelectionRafRef.current);
+                                    cellSelectionRafRef.current = null;
+                                }
+                                if (cellSelectionScrollRafRef.current !== null) {
+                                    cancelAnimationFrame(cellSelectionScrollRafRef.current);
+                                    cellSelectionScrollRafRef.current = null;
+                                }
+                                updateCellSelection(new Set());
+                                if (!next) setBatchEditModalOpen(false);
+                                message.info(next ? '已进入单元格编辑模式，可拖拽选择多个单元格' : '已退出单元格编辑模式');
+                            }}
+                        >
+                            单元格编辑器
+                        </Button>
+                       {cellEditMode && selectedCells.size > 0 && (
+                           <>
+                               <Button
+                                   type="primary"
+                                   onClick={() => {
+                                       setBatchEditValue('');
+                                       setBatchEditSetNull(false);
+                                       setBatchEditModalOpen(true);
+                                   }}
+                               >
+                                   批量填充 ({selectedCells.size})
+                               </Button>
+                           </>
+                       )}
 	                   <div style={{ width: 1, background: '#eee', height: 20, margin: '0 8px' }} />
 	                   <Button icon={<SaveOutlined />} type="primary" disabled={!hasChanges} onClick={handleCommit}>提交事务 ({addedRows.length + Object.keys(modifiedRows).length + deletedRowKeys.size})</Button>
 	                   {hasChanges && (<Button icon={<UndoOutlined />} onClick={() => {
@@ -1372,7 +1828,14 @@ const DataGrid: React.FC<DataGridProps> = ({
                background: bgFilter, 
            }}>
                {filterConditions.map(cond => (
-                   <div key={cond.id} style={{ display: 'flex', gap: 8, marginBottom: 8, alignItems: 'flex-start' }}>
+                   <div key={cond.id} style={{ display: 'flex', gap: 8, marginBottom: 8, alignItems: 'flex-start', opacity: cond.enabled === false ? 0.58 : 1 }}>
+                       <Checkbox
+                           checked={cond.enabled !== false}
+                           onChange={e => updateFilter(cond.id, 'enabled', e.target.checked)}
+                           style={{ marginTop: 6 }}
+                       >
+                           启用
+                       </Checkbox>
                        <Select
                            style={{ width: 180 }}
                            value={cond.column}
@@ -1433,6 +1896,8 @@ const DataGrid: React.FC<DataGridProps> = ({
                ))}
                <div style={{ display: 'flex', gap: 8 }}>
                    <Button type="dashed" onClick={addFilter} size="small" icon={<PlusOutlined />}>添加条件</Button>
+                   <Button size="small" onClick={() => setFilterConditions(prev => prev.map(c => ({ ...c, enabled: true })))}>全启用</Button>
+                   <Button size="small" onClick={() => setFilterConditions(prev => prev.map(c => ({ ...c, enabled: false })))}>全停用</Button>
                    <Button type="primary" onClick={applyFilters} size="small">应用</Button>
                    <Button size="small" icon={<ClearOutlined />} onClick={() => {
                        setFilterConditions([]);
@@ -1526,37 +1991,65 @@ const DataGrid: React.FC<DataGridProps> = ({
                 />
             )}
         </Modal>
+
+        {/* 批量编辑弹窗 */}
+        <Modal
+            title={`批量填充 (${selectedCells.size} 个单元格)`}
+            open={batchEditModalOpen}
+            onCancel={() => setBatchEditModalOpen(false)}
+            onOk={handleBatchFillCells}
+            width={500}
+        >
+            <div style={{ marginBottom: 16 }}>
+                <Checkbox
+                    checked={batchEditSetNull}
+                    onChange={(e) => setBatchEditSetNull(e.target.checked)}
+                >
+                    设置为 NULL
+                </Checkbox>
+            </div>
+            {!batchEditSetNull && (
+                <Input.TextArea
+                    value={batchEditValue}
+                    onChange={(e) => setBatchEditValue(e.target.value)}
+                    placeholder="输入要填充的值"
+                    autoSize={{ minRows: 3, maxRows: 10 }}
+                    autoFocus
+                />
+            )}
+        </Modal>
+
         <Form component={false} form={form}>
             <DataContext.Provider value={{ selectedRowKeysRef, displayDataRef, handleCopyInsert, handleCopyJson, handleCopyCsv, handleExportSelected, copyToClipboard, tableName }}>
-                <CellContextMenuContext.Provider value={{ showMenu: showCellContextMenu }}>
-                    <EditableContext.Provider value={form}>
-                        <Table
-                            components={tableComponents}
-                            dataSource={mergedDisplayData}
-                            columns={mergedColumns}
-                            size="small"
-                            tableLayout="fixed"
-                            scroll={{ x: Math.max(totalWidth, 1000), y: tableHeight }}
-                            virtual={enableVirtual}
-                            loading={loading}
-                                rowKey={GONAVI_ROW_KEY}
-                                pagination={false}
-                                onChange={handleTableChange}
-                                bordered
-                                rowSelection={{
-                                    selectedRowKeys,
-                                    onChange: setSelectedRowKeys,
-                                    columnWidth: selectionColumnWidth,
-                                }}
-                                rowClassName={(record) => {
-                                    const k = record?.[GONAVI_ROW_KEY];
-                                    if (k !== undefined && addedRows.some(r => r?.[GONAVI_ROW_KEY] === k)) return 'row-added';
-                                    if (k !== undefined && (modifiedRows[rowKeyStr(k)] || deletedRowKeys.has(rowKeyStr(k)))) return 'row-modified'; // deleted won't show
-                                    return '';
-                                }}
-                                onRow={(record) => ({ record } as any)}
-                            />
-                    </EditableContext.Provider>
+                <CellContextMenuContext.Provider value={{ showMenu: showCellContextMenu, handleBatchFillToSelected }}>
+                        <EditableContext.Provider value={form}>
+                            <Table
+                                components={tableComponents}
+                                dataSource={mergedDisplayData}
+                                columns={mergedColumns}
+                                size="small"
+                                tableLayout="fixed"
+                                scroll={{ x: Math.max(totalWidth, 1000), y: tableHeight }}
+                                virtual={enableVirtual}
+                                loading={loading}
+                                    rowKey={GONAVI_ROW_KEY}
+                                    pagination={false}
+                                    onChange={handleTableChange}
+                                    bordered
+                                    rowSelection={{
+                                        selectedRowKeys,
+                                        onChange: setSelectedRowKeys,
+                                        columnWidth: selectionColumnWidth,
+                                    }}
+                                    rowClassName={(record) => {
+                                        const k = record?.[GONAVI_ROW_KEY];
+                                        if (k !== undefined && addedRows.some(r => r?.[GONAVI_ROW_KEY] === k)) return 'row-added';
+                                        if (k !== undefined && (modifiedRows[rowKeyStr(k)] || deletedRowKeys.has(rowKeyStr(k)))) return 'row-modified'; // deleted won't show
+                                        return '';
+                                    }}
+                                    onRow={(record) => ({ record } as any)}
+                                />
+                        </EditableContext.Provider>
                 </CellContextMenuContext.Provider>
             </DataContext.Provider>
         </Form>
@@ -1592,6 +2085,26 @@ const DataGrid: React.FC<DataGridProps> = ({
                 >
                     设置为 NULL
                 </div>
+                <div
+                    style={{
+                        padding: '8px 12px',
+                        cursor: selectedRowKeys.length > 0 ? 'pointer' : 'not-allowed',
+                        transition: 'background 0.2s',
+                        opacity: selectedRowKeys.length > 0 ? 1 : 0.5,
+                    }}
+                    onMouseEnter={(e) => {
+                        if (selectedRowKeys.length > 0) e.currentTarget.style.background = darkMode ? '#303030' : '#f5f5f5';
+                    }}
+                    onMouseLeave={(e) => e.currentTarget.style.background = 'transparent'}
+                    onClick={() => {
+                        if (selectedRowKeys.length > 0 && cellContextMenu.record) {
+                            handleBatchFillToSelected(cellContextMenu.record, cellContextMenu.dataIndex);
+                        }
+                    }}
+                >
+                    <VerticalAlignBottomOutlined style={{ marginRight: 8 }} />
+                    填充到选中行 ({selectedRowKeys.length})
+                </div>
                 <div style={{ height: 1, background: darkMode ? '#303030' : '#f0f0f0', margin: '4px 0' }} />
                 <div
                     style={{
@@ -1737,14 +2250,21 @@ const DataGrid: React.FC<DataGridProps> = ({
                 .${gridId} .ant-table-thead > tr > th { background: transparent !important; border-bottom: 1px solid ${darkMode ? 'rgba(255,255,255,0.05)' : 'rgba(0,0,0,0.05)'} !important; border-inline-end: 1px solid transparent !important; }
                 .${gridId} .ant-table-thead > tr > th::before { display: none !important; }
                 .${gridId} .ant-table-tbody > tr:hover > td { background-color: ${darkMode ? 'rgba(255, 255, 255, 0.08)' : 'rgba(0, 0, 0, 0.02)'} !important; }
+                .${gridId} .ant-table-tbody > tr.ant-table-row-selected > td { background-color: ${darkMode ? 'rgba(24, 144, 255, 0.15)' : 'rgba(24, 144, 255, 0.08)'} !important; }
+                .${gridId} .ant-table-tbody > tr.ant-table-row-selected:hover > td { background-color: ${darkMode ? 'rgba(24, 144, 255, 0.25)' : 'rgba(24, 144, 255, 0.12)'} !important; }
 	            .${gridId} .row-added td { background-color: ${rowAddedBg} !important; color: ${darkMode ? '#e6fffb' : 'inherit'}; }
 	            .${gridId} .row-modified td { background-color: ${rowModBg} !important; color: ${darkMode ? '#e6f7ff' : 'inherit'}; }
                 .${gridId} .ant-table-tbody > tr.row-added:hover > td { background-color: ${rowAddedHover} !important; }
                 .${gridId} .ant-table-tbody > tr.row-modified:hover > td { background-color: ${rowModHover} !important; }
+                .${gridId}.cell-edit-mode .ant-table-tbody > tr > td[data-col-name] { user-select: none; -webkit-user-select: none; cursor: crosshair; }
+                .${gridId}.cell-edit-mode .ant-table-tbody > tr > td[data-cell-selected="true"] {
+                    box-shadow: inset 0 0 0 2px #1890ff;
+                    background-image: linear-gradient(${darkMode ? 'rgba(24, 144, 255, 0.18)' : 'rgba(24, 144, 255, 0.08)'}, ${darkMode ? 'rgba(24, 144, 255, 0.18)' : 'rgba(24, 144, 255, 0.08)'});
+                }
 	        `}</style>
        
        {/* Ghost Resize Line for Columns */}
-       <div 
+       <div
            ref={ghostRef}
            style={{
                position: 'absolute',
@@ -1763,4 +2283,13 @@ const DataGrid: React.FC<DataGridProps> = ({
   );
 };
 
-export default React.memo(DataGrid);
+// 使用 ErrorBoundary 包裹 DataGrid，防止数据渲染错误导致应用崩溃
+const MemoizedDataGrid = React.memo(DataGrid);
+
+const DataGridWithErrorBoundary: React.FC<DataGridProps> = (props) => (
+    <DataGridErrorBoundary>
+        <MemoizedDataGrid {...props} />
+    </DataGridErrorBoundary>
+);
+
+export default DataGridWithErrorBoundary;

frontend/src/components/DataViewer.tsx

@@ -4,7 +4,7 @@ import { TabData, ColumnDefinition } from '../types';
 import { useStore } from '../store';
 import { DBQuery, DBGetColumns } from '../../wailsjs/go/app/App';
 import DataGrid, { GONAVI_ROW_KEY } from './DataGrid';
-import { buildWhereSQL, quoteIdentPart, quoteQualifiedIdent } from '../utils/sql';
+import { buildWhereSQL, quoteIdentPart, quoteQualifiedIdent, type FilterCondition } from '../utils/sql';
 
 const DataViewer: React.FC<{ tab: TabData }> = ({ tab }) => {
   const [data, setData] = useState<any[]>([]);
@@ -29,7 +29,9 @@ const DataViewer: React.FC<{ tab: TabData }> = ({ tab }) => {
   const [sortInfo, setSortInfo] = useState<{ columnKey: string, order: string } | null>(null);
   
   const [showFilter, setShowFilter] = useState(false);
-  const [filterConditions, setFilterConditions] = useState<any[]>([]);
+  const [filterConditions, setFilterConditions] = useState<FilterCondition[]>([]);
+  const currentConnType = (connections.find(c => c.id === tab.connectionId)?.config?.type || '').toLowerCase();
+  const forceReadOnly = currentConnType === 'tdengine';
 
   useEffect(() => {
     setPkColumns([]);
@@ -218,7 +220,7 @@ const DataViewer: React.FC<{ tab: TabData }> = ({ tab }) => {
   const handleSort = useCallback((field: string, order: string) => setSortInfo({ columnKey: field, order }), []);
   const handlePageChange = useCallback((page: number, size: number) => fetchData(page, size), [fetchData]);
   const handleToggleFilter = useCallback(() => setShowFilter(prev => !prev), []);
-  const handleApplyFilter = useCallback((conditions: any[]) => setFilterConditions(conditions), []);
+  const handleApplyFilter = useCallback((conditions: FilterCondition[]) => setFilterConditions(conditions), []);
 
   useEffect(() => {
     fetchData(1, pagination.pageSize); 
@@ -241,6 +243,7 @@ const DataViewer: React.FC<{ tab: TabData }> = ({ tab }) => {
           showFilter={showFilter}
           onToggleFilter={handleToggleFilter}
           onApplyFilter={handleApplyFilter}
+          readOnly={forceReadOnly}
       />
     </div>
   );

frontend/src/components/QueryEditor.tsx

@@ -919,7 +919,7 @@ 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 === 'postgres' || normalizedType === 'kingbase' || normalizedType === 'sqlite' || normalizedType === '';
+      const supportsLimit = normalizedType === 'mysql' || normalizedType === 'postgres' || normalizedType === 'kingbase' || normalizedType === 'sqlite' || normalizedType === 'tdengine' || normalizedType === '';
       if (!supportsLimit) return { sql, applied: false, maxRows };
       if (!Number.isFinite(maxRows) || maxRows <= 0) return { sql, applied: false, maxRows };
 
@@ -997,6 +997,8 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
         const nextResultSets: ResultSet[] = [];
         const maxRows = Number(queryOptions?.maxRows) || 0;
         const dbType = String((config as any).type || 'mysql');
+        const normalizedDbType = dbType.toLowerCase();
+        const forceReadOnlyResult = normalizedDbType === 'tdengine';
         const wantsLimitProbe = Number.isFinite(maxRows) && maxRows > 0;
         const probeLimit = wantsLimitProbe ? (maxRows + 1) : 0;
         let anyTruncated = false;
@@ -1053,7 +1055,9 @@ const QueryEditor: React.FC<{ tab: TabData }> = ({ tab }) => {
                 const tableMatch = rawStatement.match(/^\s*SELECT\s+\*\s+FROM\s+[`"]?(\w+)[`"]?\s*(?:WHERE.*)?(?:ORDER BY.*)?(?:LIMIT.*)?$/i);
                 if (tableMatch) {
                     simpleTableName = tableMatch[1];
-                    pendingPk.push({ resultKey: `result-${idx + 1}`, tableName: simpleTableName });
+                    if (!forceReadOnlyResult) {
+                        pendingPk.push({ resultKey: `result-${idx + 1}`, tableName: simpleTableName });
+                    }
                 }
 
                 nextResultSets.push({

frontend/src/components/RedisViewer.tsx

@@ -10,6 +10,10 @@ const { Search } = Input;
 
 const KEY_GROUP_DELIMITER = ':';
 const EMPTY_SEGMENT_LABEL = '(empty)';
+const REDIS_TREE_KEY_TYPE_WIDTH = 92;
+const REDIS_TREE_KEY_TYPE_WIDTH_NARROW = 84;
+const REDIS_TREE_KEY_TTL_WIDTH = 92;
+const REDIS_TREE_HIDE_TTL_THRESHOLD = 460;
 
 interface RedisViewerProps {
     connectionId: string;
@@ -263,7 +267,8 @@ const countGroupLeafNodes = (group: RedisKeyTreeGroup): number => {
 const buildRedisKeyTree = (
     keys: RedisKeyInfo[],
     formatTTL: (ttl: number) => string,
-    getTypeColor: (type: string) => string
+    getTypeColor: (type: string) => string,
+    showTTL: boolean
 ): RedisKeyTreeResult => {
     const root = createTreeGroup('__root__', '__root__');
 
@@ -330,48 +335,66 @@ const buildRedisKeyTree = (
                 title: (
                     <div
                         style={{
-                            display: 'grid',
-                            gridTemplateColumns: 'minmax(0, 1fr) 92px 92px',
-                            columnGap: 8,
+                            display: 'flex',
                             alignItems: 'center',
+                            gap: 8,
                             minWidth: 0,
                             width: '100%',
+                            overflow: 'hidden',
                         }}
                     >
-                        <Space size={6} style={{ minWidth: 0 }}>
-                            <KeyOutlined style={{ color: '#1677ff' }} />
+                        <div
+                            style={{
+                                display: 'flex',
+                                alignItems: 'center',
+                                gap: 6,
+                                minWidth: 0,
+                                flex: 1,
+                                overflow: 'hidden',
+                            }}
+                        >
+                            <KeyOutlined style={{ color: '#1677ff', flexShrink: 0 }} />
                             <Tooltip title={leaf.keyInfo.key}>
                                 <span
                                     style={{
-                                        maxWidth: '100%',
+                                        minWidth: 0,
                                         overflow: 'hidden',
                                         textOverflow: 'ellipsis',
                                         whiteSpace: 'nowrap',
-                                        display: 'inline-block',
-                                        verticalAlign: 'bottom',
+                                        display: 'block',
                                     }}
                                 >
                                     {leaf.label}
                                 </span>
                             </Tooltip>
-                        </Space>
+                        </div>
                         <Tag
                             color={getTypeColor(leaf.keyInfo.type)}
-                            style={{ marginInlineEnd: 0, width: '100%', textAlign: 'center' }}
+                            style={{
+                                marginInlineEnd: 0,
+                                width: showTTL ? REDIS_TREE_KEY_TYPE_WIDTH : REDIS_TREE_KEY_TYPE_WIDTH_NARROW,
+                                textAlign: 'center',
+                                flexShrink: 0
+                            }}
                         >
                             {leaf.keyInfo.type}
                         </Tag>
-                        <span
-                            style={{
-                                width: '100%',
-                                fontSize: 12,
-                                color: '#999',
-                                textAlign: 'left',
-                                whiteSpace: 'nowrap',
-                            }}
-                        >
-                            {formatTTL(leaf.keyInfo.ttl)}
-                        </span>
+                        {showTTL && (
+                            <span
+                                style={{
+                                    width: REDIS_TREE_KEY_TTL_WIDTH,
+                                    fontSize: 12,
+                                    color: '#999',
+                                    textAlign: 'left',
+                                    whiteSpace: 'nowrap',
+                                    flexShrink: 0,
+                                    overflow: 'hidden',
+                                    textOverflow: 'ellipsis',
+                                }}
+                            >
+                                {formatTTL(leaf.keyInfo.ttl)}
+                            </span>
+                        )}
                     </div>
                 ),
             };
@@ -424,6 +447,7 @@ const RedisViewer: React.FC<RedisViewerProps> = ({ connectionId, redisDB }) => {
     // 面板宽度状态和 ref - 默认占据 50% 宽度
     const [leftPanelWidth, setLeftPanelWidth] = useState<number | string>('50%');
     const leftPanelRef = useRef<HTMLDivElement>(null);
+    const [showTreeKeyTTL, setShowTreeKeyTTL] = useState(true);
     const [expandedGroupKeys, setExpandedGroupKeys] = useState<string[]>([]);
 
     const getConfig = useCallback(() => {
@@ -614,9 +638,36 @@ const RedisViewer: React.FC<RedisViewerProps> = ({ connectionId, redisDB }) => {
         return `${Math.floor(ttl / 86400)}天${Math.floor((ttl % 86400) / 3600)}时`;
     };
 
+    useEffect(() => {
+        const target = leftPanelRef.current;
+        if (!target) return;
+
+        const updateTTLVisibility = (width: number) => {
+            const nextShowTTL = width > REDIS_TREE_HIDE_TTL_THRESHOLD;
+            setShowTreeKeyTTL((prev) => (prev === nextShowTTL ? prev : nextShowTTL));
+        };
+
+        updateTTLVisibility(Math.round(target.getBoundingClientRect().width));
+
+        if (typeof ResizeObserver !== 'undefined') {
+            const observer = new ResizeObserver((entries) => {
+                const width = Math.round(entries[0]?.contentRect.width || target.getBoundingClientRect().width);
+                updateTTLVisibility(width);
+            });
+            observer.observe(target);
+            return () => observer.disconnect();
+        }
+
+        const handleWindowResize = () => {
+            updateTTLVisibility(Math.round(target.getBoundingClientRect().width));
+        };
+        window.addEventListener('resize', handleWindowResize);
+        return () => window.removeEventListener('resize', handleWindowResize);
+    }, []);
+
     const keyTree = useMemo(() => {
-        return buildRedisKeyTree(keys, formatTTL, getTypeColor);
-    }, [keys]);
+        return buildRedisKeyTree(keys, formatTTL, getTypeColor, showTreeKeyTTL);
+    }, [keys, showTreeKeyTTL]);
 
     const selectedTreeNodeKeys = useMemo(() => {
         if (!selectedKey) {

frontend/src/components/Sidebar.tsx

@@ -3,6 +3,7 @@ import { Tree, message, Dropdown, MenuProps, Input, Button, Modal, Form, Badge,
 	import {
 	  DatabaseOutlined,
 	  TableOutlined,
+	  EyeOutlined,
 	  ConsoleSqlOutlined,
   HddOutlined,
   FolderOpenOutlined,
@@ -28,7 +29,7 @@ import { Tree, message, Dropdown, MenuProps, Input, Button, Modal, Form, Badge,
 	} from '@ant-design/icons';
 	import { useStore } from '../store';
 	import { SavedConnection } from '../types';
-	import { DBGetDatabases, DBGetTables, DBShowCreateTable, ExportTable, OpenSQLFile, CreateDatabase, RenameDatabase, DropDatabase, RenameTable, DropTable } from '../../wailsjs/go/app/App';
+	import { DBGetDatabases, DBGetTables, DBQuery, DBShowCreateTable, ExportTable, OpenSQLFile, CreateDatabase, RenameDatabase, DropDatabase, RenameTable, DropTable } from '../../wailsjs/go/app/App';
   import { normalizeOpacityForPlatform } from '../utils/appearance';
 
 const { Search } = Input;
@@ -40,7 +41,7 @@ interface TreeNode {
   children?: TreeNode[];
   icon?: React.ReactNode;
   dataRef?: any;
-  type?: 'connection' | 'database' | 'table' | 'queries-folder' | 'saved-query' | 'folder-columns' | 'folder-indexes' | 'folder-fks' | 'folder-triggers' | 'redis-db';
+  type?: 'connection' | 'database' | 'table' | 'view' | 'db-trigger' | 'object-group' | 'queries-folder' | 'saved-query' | 'folder-columns' | 'folder-indexes' | 'folder-fks' | 'folder-triggers' | 'redis-db';
 }
 
 type BatchTableExportMode = 'schema' | 'backup' | 'dataOnly';
@@ -53,6 +54,10 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   const removeConnection = useStore(state => state.removeConnection);
   const theme = useStore(state => state.theme);
   const appearance = useStore(state => state.appearance);
+  const tableAccessCount = useStore(state => state.tableAccessCount);
+  const tableSortPreference = useStore(state => state.tableSortPreference);
+  const recordTableAccess = useStore(state => state.recordTableAccess);
+  const setTableSortPreference = useStore(state => state.setTableSortPreference);
   const darkMode = theme === 'dark';
   const opacity = normalizeOpacityForPlatform(appearance.opacity);
   const [treeData, setTreeData] = useState<TreeNode[]>([]);
@@ -143,14 +148,25 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   }, [savedQueries]);
 
   useEffect(() => {
-    setTreeData(connections.map(conn => ({
-      title: conn.name,
-      key: conn.id,
-      icon: conn.config.type === 'redis' ? <CloudOutlined style={{ color: '#DC382D' }} /> : <HddOutlined />,
-      type: 'connection',
-      dataRef: conn,
-      isLeaf: false,
-    })));
+    setTreeData((prev) => {
+      const prevMap = new Map<string, TreeNode>();
+      prev.forEach((node) => {
+        prevMap.set(String(node.key), node);
+      });
+
+      return connections.map((conn) => {
+        const existing = prevMap.get(conn.id);
+        return {
+          title: conn.name,
+          key: conn.id,
+          icon: conn.config.type === 'redis' ? <CloudOutlined style={{ color: '#DC382D' }} /> : <HddOutlined />,
+          type: 'connection',
+          dataRef: conn,
+          isLeaf: false,
+          children: existing?.children,
+        } as TreeNode;
+      });
+    });
   }, [connections]);
 
   const updateTreeData = (list: TreeNode[], key: React.Key, children: TreeNode[] | undefined): TreeNode[] => {
@@ -165,6 +181,199 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
     });
   };
 
+  const SIDEBAR_SCHEMA_DB_TYPES = new Set([
+      'postgres',
+      'kingbase',
+      'highgo',
+      'vastbase',
+      'sqlserver',
+      'oracle',
+      'dameng',
+  ]);
+
+  const SIDEBAR_SCHEMA_CUSTOM_DRIVERS = new Set([
+      'postgres',
+      'kingbase',
+      'highgo',
+      'vastbase',
+      'sqlserver',
+      'oracle',
+      'dm',
+  ]);
+
+  const shouldHideSchemaPrefix = (conn: SavedConnection | undefined): boolean => {
+      const dbType = String(conn?.config?.type || '').trim().toLowerCase();
+      if (SIDEBAR_SCHEMA_DB_TYPES.has(dbType)) return true;
+      if (dbType !== 'custom') return false;
+
+      const customDriver = String((conn?.config as any)?.driver || '').trim().toLowerCase();
+      return SIDEBAR_SCHEMA_CUSTOM_DRIVERS.has(customDriver);
+  };
+
+  const getSidebarTableDisplayName = (conn: SavedConnection | undefined, tableName: string): string => {
+      const rawName = String(tableName || '').trim();
+      if (!rawName) return rawName;
+      if (!shouldHideSchemaPrefix(conn)) return rawName;
+      const lastDotIndex = rawName.lastIndexOf('.');
+      if (lastDotIndex <= 0 || lastDotIndex >= rawName.length - 1) return rawName;
+      return rawName.substring(lastDotIndex + 1);
+  };
+
+  const getMetadataDialect = (conn: SavedConnection | undefined): string => {
+      const type = String(conn?.config?.type || '').trim().toLowerCase();
+      if (type === 'custom') {
+          return String((conn?.config as any)?.driver || '').trim().toLowerCase();
+      }
+      if (type === 'mariadb') return 'mysql';
+      if (type === 'dameng') return 'dm';
+      return type;
+  };
+
+  const escapeSQLLiteral = (raw: string): string => String(raw || '').replace(/'/g, "''");
+  const quoteSqlServerIdentifier = (raw: string): string => `[${String(raw || '').replace(/]/g, ']]')}]`;
+
+  const getCaseInsensitiveValue = (row: Record<string, any>, candidateKeys: string[]): string => {
+      const keyMap = new Map<string, any>();
+      Object.keys(row || {}).forEach((key) => keyMap.set(key.toLowerCase(), row[key]));
+      for (const key of candidateKeys) {
+          const value = keyMap.get(key.toLowerCase());
+          if (value !== undefined && value !== null) {
+              const normalized = String(value).trim();
+              if (normalized !== '') return normalized;
+          }
+      }
+      return '';
+  };
+
+  const getFirstRowValue = (row: Record<string, any>): string => {
+      for (const value of Object.values(row || {})) {
+          if (value !== undefined && value !== null) {
+              const normalized = String(value).trim();
+              if (normalized !== '') return normalized;
+          }
+      }
+      return '';
+  };
+
+  const buildQualifiedName = (schemaName: string, objectName: string): string => {
+      const schema = String(schemaName || '').trim();
+      const name = String(objectName || '').trim();
+      if (!name) return '';
+      if (!schema) return name;
+      if (name.includes('.')) return name;
+      return `${schema}.${name}`;
+  };
+
+  const buildViewsMetadataQuery = (dialect: string, dbName: string): string => {
+      const safeDbName = escapeSQLLiteral(dbName);
+      switch (dialect) {
+          case 'mysql':
+              if (!safeDbName) return '';
+              return `SELECT TABLE_NAME AS view_name FROM information_schema.views WHERE table_schema = '${safeDbName}' ORDER BY TABLE_NAME`;
+          case 'postgres':
+          case 'kingbase':
+          case 'highgo':
+          case 'vastbase':
+              return `SELECT schemaname AS schema_name, viewname AS view_name FROM pg_catalog.pg_views WHERE schemaname != 'information_schema' AND schemaname NOT LIKE 'pg_%' ORDER BY schemaname, viewname`;
+          case 'sqlserver': {
+              const safeDb = quoteSqlServerIdentifier(dbName || 'master');
+              return `SELECT s.name AS schema_name, v.name AS view_name FROM ${safeDb}.sys.views v JOIN ${safeDb}.sys.schemas s ON v.schema_id = s.schema_id ORDER BY s.name, v.name`;
+          }
+          case 'oracle':
+          case 'dm': {
+              if (!safeDbName) {
+                  return `SELECT VIEW_NAME AS view_name FROM USER_VIEWS ORDER BY VIEW_NAME`;
+              }
+              return `SELECT OWNER AS schema_name, VIEW_NAME AS view_name FROM ALL_VIEWS WHERE OWNER = '${safeDbName.toUpperCase()}' ORDER BY VIEW_NAME`;
+          }
+          case 'sqlite':
+              return `SELECT name AS view_name FROM sqlite_master WHERE type = 'view' ORDER BY name`;
+          default:
+              return '';
+      }
+  };
+
+  const buildTriggersMetadataQuery = (dialect: string, dbName: string): string => {
+      const safeDbName = escapeSQLLiteral(dbName);
+      switch (dialect) {
+          case 'mysql':
+              if (!safeDbName) return '';
+              return `SELECT TRIGGER_NAME AS trigger_name, EVENT_OBJECT_TABLE AS table_name, TRIGGER_SCHEMA AS schema_name FROM information_schema.triggers WHERE trigger_schema = '${safeDbName}' ORDER BY EVENT_OBJECT_TABLE, TRIGGER_NAME`;
+          case 'postgres':
+          case 'kingbase':
+          case 'highgo':
+          case 'vastbase':
+              return `SELECT DISTINCT event_object_schema AS schema_name, event_object_table AS table_name, trigger_name FROM information_schema.triggers WHERE trigger_schema NOT IN ('pg_catalog', 'information_schema') AND trigger_schema NOT LIKE 'pg_%' ORDER BY event_object_schema, event_object_table, trigger_name`;
+          case 'sqlserver': {
+              const safeDb = quoteSqlServerIdentifier(dbName || 'master');
+              return `SELECT s.name AS schema_name, t.name AS table_name, tr.name AS trigger_name FROM ${safeDb}.sys.triggers tr JOIN ${safeDb}.sys.tables t ON tr.parent_id = t.object_id JOIN ${safeDb}.sys.schemas s ON t.schema_id = s.schema_id WHERE tr.parent_class = 1 ORDER BY s.name, t.name, tr.name`;
+          }
+          case 'oracle':
+          case 'dm': {
+              if (!safeDbName) {
+                  return `SELECT TRIGGER_NAME AS trigger_name, TABLE_NAME AS table_name FROM USER_TRIGGERS ORDER BY TABLE_NAME, TRIGGER_NAME`;
+              }
+              return `SELECT OWNER AS schema_name, TABLE_NAME AS table_name, TRIGGER_NAME AS trigger_name FROM ALL_TRIGGERS WHERE OWNER = '${safeDbName.toUpperCase()}' ORDER BY TABLE_NAME, TRIGGER_NAME`;
+          }
+          case 'sqlite':
+              return `SELECT name AS trigger_name, tbl_name AS table_name FROM sqlite_master WHERE type = 'trigger' ORDER BY tbl_name, name`;
+          default:
+              return '';
+      }
+  };
+
+  const queryMetadataRows = async (conn: any, dbName: string, query: string): Promise<Record<string, any>[]> => {
+      if (!query) return [];
+      try {
+          const config = buildRuntimeConfig(conn, dbName);
+          const result = await DBQuery(config as any, dbName, query);
+          if (!result.success || !Array.isArray(result.data)) return [];
+          return result.data as Record<string, any>[];
+      } catch {
+          return [];
+      }
+  };
+
+  const loadViews = async (conn: any, dbName: string): Promise<string[]> => {
+      const dialect = getMetadataDialect(conn as SavedConnection);
+      const query = buildViewsMetadataQuery(dialect, dbName);
+      const rows = await queryMetadataRows(conn, dbName, query);
+      const seen = new Set<string>();
+      const views: string[] = [];
+
+      rows.forEach((row) => {
+          const schemaName = getCaseInsensitiveValue(row, ['schema_name', 'schemaname', 'owner', 'table_schema']);
+          const viewName = getCaseInsensitiveValue(row, ['view_name', 'viewname', 'table_name', 'name']) || getFirstRowValue(row);
+          const fullName = buildQualifiedName(schemaName, viewName);
+          if (!fullName || seen.has(fullName)) return;
+          seen.add(fullName);
+          views.push(fullName);
+      });
+      return views;
+  };
+
+  const loadDatabaseTriggers = async (conn: any, dbName: string): Promise<Array<{ displayName: string; triggerName: string; tableName: string }>> => {
+      const dialect = getMetadataDialect(conn as SavedConnection);
+      const query = buildTriggersMetadataQuery(dialect, dbName);
+      const rows = await queryMetadataRows(conn, dbName, query);
+      const seen = new Set<string>();
+      const triggers: Array<{ displayName: string; triggerName: string; tableName: string }> = [];
+
+      rows.forEach((row) => {
+          const triggerName = getCaseInsensitiveValue(row, ['trigger_name', 'triggername', 'name']) || getFirstRowValue(row);
+          if (!triggerName) return;
+          const schemaName = getCaseInsensitiveValue(row, ['schema_name', 'schemaname', 'owner', 'event_object_schema', 'trigger_schema']);
+          const tableName = getCaseInsensitiveValue(row, ['table_name', 'event_object_table', 'tbl_name']);
+          const fullTableName = buildQualifiedName(schemaName, tableName);
+          const uniqueKey = `${triggerName}@@${fullTableName}`;
+          if (seen.has(uniqueKey)) return;
+          seen.add(uniqueKey);
+          const displayName = fullTableName ? `${triggerName} (${fullTableName})` : triggerName;
+          triggers.push({ displayName, triggerName, tableName: fullTableName });
+      });
+      return triggers;
+  };
+
 	  const loadDatabases = async (node: any) => {
 	      const conn = node.dataRef as SavedConnection;
 	      const loadKey = `dbs-${conn.id}`;
@@ -280,8 +489,9 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
 	            setConnectionStates(prev => ({ ...prev, [key as string]: 'success' }));
 	            const tables = (res.data as any[]).map((row: any) => {
                 const tableName = Object.values(row)[0] as string;
+                const tableDisplayName = getSidebarTableDisplayName(conn, tableName);
                 return {
-                  title: tableName,
+                  title: tableDisplayName,
                   key: `${conn.id}-${conn.dbName}-${tableName}`,
                   icon: <TableOutlined />,
                   type: 'table' as const,
@@ -289,8 +499,76 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
                   isLeaf: false, 
                 };
             });
-            
-            setTreeData(origin => updateTreeData(origin, key, [queriesNode, ...tables]));
+
+            const [views, triggers] = await Promise.all([
+                loadViews(conn, conn.dbName),
+                loadDatabaseTriggers(conn, conn.dbName),
+            ]);
+
+            // 获取当前数据库的排序偏好
+            const sortPreferenceKey = `${conn.id}-${conn.dbName}`;
+            const sortBy = tableSortPreference[sortPreferenceKey] || 'name';
+
+            // 根据排序偏好排序表
+            if (sortBy === 'frequency') {
+                // 按使用频率排序（降序）
+                tables.sort((a, b) => {
+                    const keyA = `${conn.id}-${conn.dbName}-${a.dataRef.tableName}`;
+                    const keyB = `${conn.id}-${conn.dbName}-${b.dataRef.tableName}`;
+                    const countA = tableAccessCount[keyA] || 0;
+                    const countB = tableAccessCount[keyB] || 0;
+                    if (countA !== countB) {
+                        return countB - countA; // 降序
+                    }
+                    // 频率相同时按名称排序
+                    return a.title.toLowerCase().localeCompare(b.title.toLowerCase());
+                });
+            } else {
+                // 按名称排序（字母顺序）
+                tables.sort((a, b) => a.title.toLowerCase().localeCompare(b.title.toLowerCase()));
+            }
+
+            // Sort views by name (case-insensitive)
+            views.sort((a, b) => a.toLowerCase().localeCompare(b.toLowerCase()));
+
+            // Sort triggers by display name (case-insensitive)
+            triggers.sort((a, b) => a.displayName.toLowerCase().localeCompare(b.displayName.toLowerCase()));
+
+            const viewNodes: TreeNode[] = views.map((viewName) => ({
+                title: getSidebarTableDisplayName(conn, viewName),
+                key: `${conn.id}-${conn.dbName}-view-${viewName}`,
+                icon: <EyeOutlined />,
+                type: 'view',
+                dataRef: { ...conn, viewName, tableName: viewName },
+                isLeaf: true,
+            }));
+
+            const triggerNodes: TreeNode[] = triggers.map((trigger) => ({
+                title: trigger.displayName,
+                key: `${conn.id}-${conn.dbName}-trigger-${trigger.triggerName}-${trigger.tableName}`,
+                icon: <FunctionOutlined />,
+                type: 'db-trigger',
+                dataRef: { ...conn, triggerName: trigger.triggerName, triggerTableName: trigger.tableName },
+                isLeaf: true,
+            }));
+
+            const buildObjectGroup = (groupKey: string, groupTitle: string, groupIcon: React.ReactNode, children: TreeNode[]): TreeNode => ({
+                title: `${groupTitle} (${children.length})`,
+                key: `${key}-${groupKey}`,
+                icon: groupIcon,
+                type: 'object-group',
+                isLeaf: children.length === 0,
+                children: children.length > 0 ? children : undefined,
+                dataRef: { ...conn, dbName: conn.dbName, groupKey }
+            });
+
+            const groupedNodes: TreeNode[] = [
+                buildObjectGroup('tables', '表', <TableOutlined />, tables),
+                buildObjectGroup('views', '视图', <EyeOutlined />, viewNodes),
+                buildObjectGroup('triggers', '触发器', <FunctionOutlined />, triggerNodes),
+            ];
+
+            setTreeData(origin => updateTreeData(origin, key, [queriesNode, ...groupedNodes]));
           } else {
             setConnectionStates(prev => ({ ...prev, [key as string]: 'error' }));
             message.error({ content: res.message, key: `db-${key}-tables` });
@@ -309,7 +587,6 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
         await loadTables({ key, dataRef });
     } else if (type === 'table') {
         // Expand table to show object categories
-        const { tableName, dbName, id } = dataRef;
         const conn = dataRef; 
 
         const folders: TreeNode[] = [
@@ -398,6 +675,8 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
           setActiveContext({ connectionId: dataRef.id, dbName: title });
       } else if (type === 'table') {
           setActiveContext({ connectionId: dataRef.id, dbName: dataRef.dbName });
+      } else if (type === 'view' || type === 'db-trigger') {
+          setActiveContext({ connectionId: dataRef.id, dbName: dataRef.dbName });
       } else if (type === 'saved-query') {
           setActiveContext({ connectionId: dataRef.connectionId, dbName: dataRef.dbName });
       } else if (type === 'redis-db') {
@@ -418,6 +697,8 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
   const onDoubleClick = (e: any, node: any) => {
       if (node.type === 'table') {
           const { tableName, dbName, id } = node.dataRef;
+          // 记录表访问
+          recordTableAccess(id, dbName, tableName);
           addTab({
               id: node.key,
               title: tableName,
@@ -427,6 +708,17 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
               tableName,
           });
           return;
+      } else if (node.type === 'view') {
+          const { viewName, dbName, id } = node.dataRef;
+          addTab({
+              id: node.key,
+              title: viewName,
+              type: 'table',
+              connectionId: id,
+              dbName,
+              tableName: viewName,
+          });
+          return;
       } else if (node.type === 'saved-query') {
           const q = node.dataRef;
           addTab({
@@ -448,14 +740,25 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
               redisDB: redisDB
           });
           return;
+      } else if (node.type === 'db-trigger') {
+          const { triggerName, dbName, id } = node.dataRef;
+          addTab({
+              id: `trigger-${node.key}`,
+              title: `触发器: ${triggerName}`,
+              type: 'trigger',
+              connectionId: id,
+              dbName,
+              triggerName
+          });
+          return;
       }
 
       const key = node.key;
       const isExpanded = expandedKeys.includes(key);
-      const newExpandedKeys = isExpanded 
-          ? expandedKeys.filter(k => k !== key) 
+      const newExpandedKeys = isExpanded
+          ? expandedKeys.filter(k => k !== key)
           : [...expandedKeys, key];
-      
+
       setExpandedKeys(newExpandedKeys);
       if (!isExpanded) setAutoExpandParent(false);
   };
@@ -1055,6 +1358,42 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
     const conn = node.dataRef as SavedConnection;
     const isRedis = conn?.config?.type === 'redis';
 
+    // 表分组节点的右键菜单
+    if (node.type === 'object-group' && node.dataRef?.groupKey === 'tables') {
+        const groupData = node.dataRef; // { ...conn, dbName, groupKey }
+        const sortPreferenceKey = `${groupData.id}-${groupData.dbName}`;
+        const currentSort = tableSortPreference[sortPreferenceKey] || 'name';
+
+        return [
+            {
+                key: 'sort-by-name',
+                label: '按名称排序',
+                icon: currentSort === 'name' ? <CheckSquareOutlined /> : null,
+                onClick: () => {
+                    setTableSortPreference(groupData.id, groupData.dbName, 'name');
+                    const dbNode = {
+                        key: `${groupData.id}-${groupData.dbName}`,
+                        dataRef: groupData
+                    };
+                    loadTables(dbNode);
+                }
+            },
+            {
+                key: 'sort-by-frequency',
+                label: '按使用频率排序',
+                icon: currentSort === 'frequency' ? <CheckSquareOutlined /> : null,
+                onClick: () => {
+                    setTableSortPreference(groupData.id, groupData.dbName, 'frequency');
+                    const dbNode = {
+                        key: `${groupData.id}-${groupData.dbName}`,
+                        dataRef: groupData
+                    };
+                    loadTables(dbNode);
+                }
+            }
+        ];
+    }
+
     if (node.type === 'connection') {
         // Redis connection menu
         if (isRedis) {
@@ -1319,6 +1658,30 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
                  onClick: () => handleRunSQLFile(node)
              }
        ];
+    } else if (node.type === 'view') {
+        return [
+            {
+                key: 'open-view',
+                label: '浏览视图数据',
+                icon: <EyeOutlined />,
+                onClick: () => onDoubleClick(null, node)
+            },
+            {
+                key: 'new-query',
+                label: '新建查询',
+                icon: <ConsoleSqlOutlined />,
+                onClick: () => {
+                    addTab({
+                        id: `query-${Date.now()}`,
+                        title: `新建查询`,
+                        type: 'query',
+                        connectionId: node.dataRef.id,
+                        dbName: node.dataRef.dbName,
+                        query: ''
+                    });
+                }
+            }
+        ];
     } else if (node.type === 'table') {
         return [
             {
@@ -1397,12 +1760,25 @@ const Sidebar: React.FC<{ onEditConnection?: (conn: SavedConnection) => void }>
         if (connectionStates[node.key] === 'success') status = 'success';
         else if (connectionStates[node.key] === 'error') status = 'error';
     }
-    
+
     const statusBadge = node.type === 'connection' || node.type === 'database' ? (
         <Badge status={status} style={{ marginRight: 8 }} />
     ) : null;
 
-    return <span title={node.title}>{statusBadge}{node.title}</span>;
+    const displayTitle = String(node.title ?? '');
+    let hoverTitle = displayTitle;
+    if (node.type === 'table' || node.type === 'view') {
+        const rawTableName = String(node?.dataRef?.tableName || node?.dataRef?.viewName || '').trim();
+        const conn = node?.dataRef as SavedConnection | undefined;
+        if (rawTableName && shouldHideSchemaPrefix(conn)) {
+            const lastDotIndex = rawTableName.lastIndexOf('.');
+            if (lastDotIndex > 0 && lastDotIndex < rawTableName.length - 1) {
+                hoverTitle = rawTableName;
+            }
+        }
+    }
+
+    return <span title={hoverTitle}>{statusBadge}{displayTitle}</span>;
   };
 
   const onRightClick = ({ event, node }: any) => {

frontend/src/components/TabManager.tsx

@@ -7,9 +7,30 @@ import QueryEditor from './QueryEditor';
 import TableDesigner from './TableDesigner';
 import RedisViewer from './RedisViewer';
 import RedisCommandEditor from './RedisCommandEditor';
+import TriggerViewer from './TriggerViewer';
+import type { TabData } from '../types';
+
+const detectConnectionEnvLabel = (connectionName: string): string | null => {
+  const tokens = connectionName.toLowerCase().split(/[^a-z0-9]+/).filter(Boolean);
+  if (tokens.includes('prod') || tokens.includes('production')) return 'PROD';
+  if (tokens.includes('uat')) return 'UAT';
+  if (tokens.includes('dev') || tokens.includes('development')) return 'DEV';
+  if (tokens.includes('sit')) return 'SIT';
+  if (tokens.includes('stg') || tokens.includes('stage') || tokens.includes('staging') || tokens.includes('pre')) return 'STG';
+  if (tokens.includes('test') || tokens.includes('qa')) return 'TEST';
+  return null;
+};
+
+const buildTabDisplayTitle = (tab: TabData, connectionName: string | undefined): string => {
+  if (tab.type !== 'table' && tab.type !== 'design') return tab.title;
+  if (!connectionName) return tab.title;
+  const prefix = detectConnectionEnvLabel(connectionName) || connectionName;
+  return `[${prefix}] ${tab.title}`;
+};
 
 const TabManager: React.FC = () => {
   const tabs = useStore(state => state.tabs);
+  const connections = useStore(state => state.connections);
   const activeTabId = useStore(state => state.activeTabId);
   const setActiveTab = useStore(state => state.setActiveTab);
   const closeTab = useStore(state => state.closeTab);
@@ -29,6 +50,8 @@ 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);
     let content;
     if (tab.type === 'query') {
       content = <QueryEditor tab={tab} />;
@@ -40,6 +63,8 @@ const TabManager: React.FC = () => {
       content = <RedisViewer connectionId={tab.connectionId} redisDB={tab.redisDB ?? 0} />;
     } else if (tab.type === 'redis-command') {
       content = <RedisCommandEditor connectionId={tab.connectionId} redisDB={tab.redisDB ?? 0} />;
+    } else if (tab.type === 'trigger') {
+      content = <TriggerViewer tab={tab} />;
     }
 
     const menuItems: MenuProps['items'] = [
@@ -73,13 +98,13 @@ const TabManager: React.FC = () => {
     return {
       label: (
         <Dropdown menu={{ items: menuItems }} trigger={['contextMenu']}>
-          <span onContextMenu={(e) => e.preventDefault()}>{tab.title}</span>
+          <span onContextMenu={(e) => e.preventDefault()}>{displayTitle}</span>
         </Dropdown>
       ),
       key: tab.id,
       children: content,
     };
-  }), [tabs, closeOtherTabs, closeTabsToLeft, closeTabsToRight, closeAllTabs]);
+  }), [tabs, connections, closeOtherTabs, closeTabsToLeft, closeTabsToRight, closeAllTabs]);
 
   return (
     <>

frontend/src/components/TableDesigner.tsx

@@ -1,10 +1,11 @@
 import React, { useEffect, useState, useContext, useMemo, useRef } from 'react';
-import { Table, Tabs, Button, message, Input, Checkbox, Modal, AutoComplete, Tooltip, Select } from 'antd';
-import { ReloadOutlined, SaveOutlined, PlusOutlined, DeleteOutlined, MenuOutlined, FileTextOutlined } from '@ant-design/icons';
+import { Table, Tabs, Button, message, Input, Checkbox, Modal, AutoComplete, Tooltip, Select, Empty, Space } from 'antd';
+import { ReloadOutlined, SaveOutlined, PlusOutlined, DeleteOutlined, MenuOutlined, FileTextOutlined, EyeOutlined, EditOutlined, ExclamationCircleOutlined } 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';
 import { CSS } from '@dnd-kit/utilities';
 import { Resizable } from 'react-resizable';
+import Editor, { loader } from '@monaco-editor/react';
 import { TabData, ColumnDefinition, IndexDefinition, ForeignKeyDefinition, TriggerDefinition } from '../types';
 import { useStore } from '../store';
 import { DBGetColumns, DBGetIndexes, DBQuery, DBGetForeignKeys, DBGetTriggers, DBShowCreateTable } from '../../wailsjs/go/app/App';
@@ -162,13 +163,47 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
   const [previewSql, setPreviewSql] = useState<string>('');
   const [isPreviewOpen, setIsPreviewOpen] = useState(false);
   const [activeKey, setActiveKey] = useState(tab.initialTab || "columns");
+  const [selectedTrigger, setSelectedTrigger] = useState<TriggerDefinition | null>(null);
+  const [isTriggerModalOpen, setIsTriggerModalOpen] = useState(false);
+  const [isTriggerEditModalOpen, setIsTriggerEditModalOpen] = useState(false);
+  const [triggerEditMode, setTriggerEditMode] = useState<'create' | 'edit'>('create');
+  const [triggerEditSql, setTriggerEditSql] = useState<string>('');
+  const [triggerExecuting, setTriggerExecuting] = useState(false);
   
   const connections = useStore(state => state.connections);
+  const theme = useStore(state => state.theme);
+  const darkMode = theme === 'dark';
   const readOnly = !!tab.readOnly;
 
   const [tableHeight, setTableHeight] = useState(500);
   const containerRef = useRef<HTMLDivElement>(null);
 
+  // 初始化透明 Monaco Editor 主题
+  useEffect(() => {
+    loader.init().then(monaco => {
+      monaco.editor.defineTheme('transparent-dark', {
+        base: 'vs-dark',
+        inherit: true,
+        rules: [],
+        colors: {
+          'editor.background': '#00000000',
+          'editor.lineHighlightBackground': '#ffffff10',
+          'editorGutter.background': '#00000000',
+        }
+      });
+      monaco.editor.defineTheme('transparent-light', {
+        base: 'vs',
+        inherit: true,
+        rules: [],
+        colors: {
+          'editor.background': '#00000000',
+          'editor.lineHighlightBackground': '#00000010',
+          'editorGutter.background': '#00000000',
+        }
+      });
+    });
+  }, []);
+
   useEffect(() => {
       if (!containerRef.current) return;
       const resizeObserver = new ResizeObserver(entries => {
@@ -365,6 +400,215 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
     fetchData();
   }, [tab]);
 
+  // --- Trigger Handlers ---
+
+  const getDbType = (): string => {
+    const conn = connections.find(c => c.id === tab.connectionId);
+    const type = String(conn?.config?.type || '').toLowerCase();
+    if (type === 'mariadb') return 'mysql';
+    if (type === 'dameng') return 'dm';
+    return type;
+  };
+
+  const generateTriggerTemplate = (): string => {
+    const dbType = getDbType();
+    const tblName = tab.tableName || 'table_name';
+
+    switch (dbType) {
+      case 'mysql':
+        return `CREATE TRIGGER trigger_name
+BEFORE INSERT ON \`${tblName}\`
+FOR EACH ROW
+BEGIN
+    -- 触发器逻辑
+END;`;
+      case 'postgres':
+      case 'kingbase':
+      case 'highgo':
+      case 'vastbase':
+        return `CREATE OR REPLACE FUNCTION trigger_function_name()
+RETURNS TRIGGER AS $$
+BEGIN
+    -- 触发器逻辑
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trigger_name
+BEFORE INSERT ON "${tblName}"
+FOR EACH ROW
+EXECUTE FUNCTION trigger_function_name();`;
+      case 'sqlserver':
+        return `CREATE TRIGGER trigger_name
+ON [${tblName}]
+AFTER INSERT
+AS
+BEGIN
+    SET NOCOUNT ON;
+    -- 触发器逻辑
+END;`;
+      case 'oracle':
+      case 'dm':
+        return `CREATE OR REPLACE TRIGGER trigger_name
+BEFORE INSERT ON "${tblName}"
+FOR EACH ROW
+BEGIN
+    -- 触发器逻辑
+    NULL;
+END;`;
+      case 'sqlite':
+        return `CREATE TRIGGER trigger_name
+AFTER INSERT ON "${tblName}"
+BEGIN
+    -- 触发器逻辑
+END;`;
+      default:
+        return `-- 请输入 CREATE TRIGGER 语句`;
+    }
+  };
+
+  const buildDropTriggerSql = (triggerName: string): string => {
+    const dbType = getDbType();
+    const tblName = tab.tableName || '';
+
+    switch (dbType) {
+      case 'mysql':
+        return `DROP TRIGGER IF EXISTS \`${triggerName}\``;
+      case 'postgres':
+      case 'kingbase':
+      case 'highgo':
+      case 'vastbase':
+        return `DROP TRIGGER IF EXISTS "${triggerName}" ON "${tblName}"`;
+      case 'sqlserver':
+        return `DROP TRIGGER IF EXISTS [${triggerName}]`;
+      case 'oracle':
+      case 'dm':
+        return `DROP TRIGGER "${triggerName}"`;
+      case 'sqlite':
+        return `DROP TRIGGER IF EXISTS "${triggerName}"`;
+      default:
+        return `DROP TRIGGER ${triggerName}`;
+    }
+  };
+
+  const handleCreateTrigger = () => {
+    setTriggerEditMode('create');
+    setTriggerEditSql(generateTriggerTemplate());
+    setIsTriggerEditModalOpen(true);
+  };
+
+  const handleEditTrigger = () => {
+    if (!selectedTrigger) return;
+    setTriggerEditMode('edit');
+    // 构建完整的 CREATE TRIGGER 语句
+    const dbType = getDbType();
+    const tblName = tab.tableName || '';
+    let createSql = '';
+
+    if (dbType === 'mysql') {
+      createSql = `CREATE TRIGGER \`${selectedTrigger.name}\`
+${selectedTrigger.timing} ${selectedTrigger.event} ON \`${tblName}\`
+FOR EACH ROW
+${selectedTrigger.statement}`;
+    } else {
+      createSql = selectedTrigger.statement || '-- 无法获取完整的触发器定义';
+    }
+
+    setTriggerEditSql(createSql);
+    setIsTriggerEditModalOpen(true);
+  };
+
+  const handleDeleteTrigger = () => {
+    if (!selectedTrigger) return;
+
+    Modal.confirm({
+      title: '确认删除触发器',
+      icon: <ExclamationCircleOutlined />,
+      content: `确定要删除触发器 "${selectedTrigger.name}" 吗？此操作不可撤销。`,
+      okText: '删除',
+      okType: 'danger',
+      cancelText: '取消',
+      onOk: async () => {
+        const conn = connections.find(c => c.id === tab.connectionId);
+        if (!conn) {
+          message.error('未找到连接');
+          return;
+        }
+
+        const config = {
+          ...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: "" }
+        };
+
+        const dropSql = buildDropTriggerSql(selectedTrigger.name);
+
+        try {
+          const res = await DBQuery(config as any, tab.dbName || '', dropSql);
+          if (res.success) {
+            message.success('触发器删除成功');
+            setSelectedTrigger(null);
+            fetchData(); // 刷新列表
+          } else {
+            message.error('删除失败: ' + res.message);
+          }
+        } catch (e: any) {
+          message.error('删除失败: ' + (e?.message || String(e)));
+        }
+      }
+    });
+  };
+
+  const handleExecuteTriggerSql = async () => {
+    const conn = connections.find(c => c.id === tab.connectionId);
+    if (!conn) {
+      message.error('未找到连接');
+      return;
+    }
+
+    const config = {
+      ...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: "" }
+    };
+
+    setTriggerExecuting(true);
+
+    try {
+      // 如果是编辑模式，先删除旧触发器
+      if (triggerEditMode === 'edit' && selectedTrigger) {
+        const dropSql = buildDropTriggerSql(selectedTrigger.name);
+        const dropRes = await DBQuery(config as any, tab.dbName || '', dropSql);
+        if (!dropRes.success) {
+          message.error('删除旧触发器失败: ' + dropRes.message);
+          setTriggerExecuting(false);
+          return;
+        }
+      }
+
+      // 执行创建语句
+      const res = await DBQuery(config as any, tab.dbName || '', triggerEditSql);
+      if (res.success) {
+        message.success(triggerEditMode === 'create' ? '触发器创建成功' : '触发器修改成功');
+        setIsTriggerEditModalOpen(false);
+        setSelectedTrigger(null);
+        fetchData(); // 刷新列表
+      } else {
+        message.error('执行失败: ' + res.message);
+      }
+    } catch (e: any) {
+      message.error('执行失败: ' + (e?.message || String(e)));
+    } finally {
+      setTriggerExecuting(false);
+    }
+  };
+
   // --- Handlers ---
 
   const handleColumnChange = (key: string, field: keyof EditableColumn, value: any) => {
@@ -680,19 +924,61 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
                         key: 'triggers',
                         label: '触发器',
                         children: (
-                            <Table 
-                                dataSource={triggers} 
-                                columns={[
-                                    { title: '名', dataIndex: 'name', key: 'name' },
-                                    { title: '时间', dataIndex: 'timing', key: 'timing' },
-                                    { title: '事件', dataIndex: 'event', key: 'event' },
-                                    { title: '语句', dataIndex: 'statement', key: 'statement', ellipsis: true },
-                                ]}
-                                rowKey="name" 
-                                size="small" 
-                                pagination={false} 
-                                loading={loading}
-                            />
+                            <div>
+                                <div style={{ marginBottom: 8, display: 'flex', gap: 8 }}>
+                                    <Button
+                                        size="small"
+                                        icon={<EyeOutlined />}
+                                        disabled={!selectedTrigger}
+                                        onClick={() => setIsTriggerModalOpen(true)}
+                                    >
+                                        查看语句
+                                    </Button>
+                                    <Button size="small" icon={<PlusOutlined />} onClick={handleCreateTrigger}>新增</Button>
+                                    <Button size="small" icon={<EditOutlined />} disabled={!selectedTrigger} onClick={handleEditTrigger}>修改</Button>
+                                    <Button size="small" icon={<DeleteOutlined />} danger disabled={!selectedTrigger} onClick={handleDeleteTrigger}>删除</Button>
+                                    <span style={{ marginLeft: 'auto', color: '#888', fontSize: 12, alignSelf: 'center' }}>
+                                        {selectedTrigger ? `已选择: ${selectedTrigger.name}` : '请点击选择触发器'}
+                                    </span>
+                                </div>
+                                <Table
+                                    dataSource={triggers}
+                                    columns={[
+                                        { title: '名称', dataIndex: 'name', key: 'name' },
+                                        { title: '时机', dataIndex: 'timing', key: 'timing', width: 100 },
+                                        { title: '事件', dataIndex: 'event', key: 'event', width: 100 },
+                                    ]}
+                                    rowKey="name"
+                                    size="small"
+                                    pagination={false}
+                                    loading={loading}
+                                    locale={{ emptyText: <Empty description="该表暂无触发器" image={Empty.PRESENTED_IMAGE_SIMPLE} /> }}
+                                    rowSelection={{
+                                        type: 'radio',
+                                        selectedRowKeys: selectedTrigger ? [selectedTrigger.name] : [],
+                                        onChange: (_, selectedRows) => setSelectedTrigger(selectedRows[0] || null),
+                                        onSelect: (record, selected) => {
+                                            // 点击单选按钮时，如果已选中则取消
+                                            if (selectedTrigger?.name === record.name) {
+                                                setSelectedTrigger(null);
+                                            } else {
+                                                setSelectedTrigger(record);
+                                            }
+                                        },
+                                    }}
+                                    onRow={(record) => ({
+                                        onClick: () => {
+                                            // 点击已选中的行时取消选择
+                                            if (selectedTrigger?.name === record.name) {
+                                                setSelectedTrigger(null);
+                                            } else {
+                                                setSelectedTrigger(record);
+                                            }
+                                        },
+                                        style: { cursor: 'pointer' }
+                                    })}
+                                />
+                            </div>
                         )
                     }
                 ] : []),
@@ -701,8 +987,22 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
                     label: 'DDL',
                     icon: <FileTextOutlined />,
                     children: (
-                        <div style={{ height: 'calc(100vh - 200px)', overflow: 'auto', padding: 10, background: '#f5f5f5', border: '1px solid #eee' }}>
-                            <pre>{ddl}</pre>
+                        <div style={{ height: 'calc(100vh - 200px)', border: darkMode ? '1px solid #303030' : '1px solid #d9d9d9', borderRadius: 4 }}>
+                            <Editor
+                                height="100%"
+                                language="sql"
+                                theme={darkMode ? 'transparent-dark' : 'transparent-light'}
+                                value={ddl}
+                                options={{
+                                    readOnly: true,
+                                    minimap: { enabled: false },
+                                    fontSize: 14,
+                                    lineNumbers: 'on',
+                                    scrollBeyondLastLine: false,
+                                    wordWrap: 'on',
+                                    automaticLayout: true,
+                                }}
+                            />
                         </div>
                     )
                 }] : [])
@@ -725,6 +1025,75 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
             </div>
             <p style={{ marginTop: 10, color: '#faad14' }}>请仔细检查 SQL，执行后不可撤销。</p>
         </Modal>
+
+        <Modal
+            title={selectedTrigger ? `触发器: ${selectedTrigger.name}` : '触发器详情'}
+            open={isTriggerModalOpen}
+            onCancel={() => setIsTriggerModalOpen(false)}
+            footer={null}
+            width={700}
+        >
+            {selectedTrigger && (
+                <div>
+                    <div style={{ marginBottom: 12, display: 'flex', gap: 24 }}>
+                        <span><strong>时机:</strong> {selectedTrigger.timing}</span>
+                        <span><strong>事件:</strong> {selectedTrigger.event}</span>
+                    </div>
+                    <div style={{ border: darkMode ? '1px solid #303030' : '1px solid #d9d9d9', borderRadius: 4 }}>
+                        <Editor
+                            height="350px"
+                            language="sql"
+                            theme={darkMode ? 'transparent-dark' : 'transparent-light'}
+                            value={selectedTrigger.statement}
+                            options={{
+                                readOnly: true,
+                                minimap: { enabled: false },
+                                fontSize: 14,
+                                lineNumbers: 'on',
+                                scrollBeyondLastLine: false,
+                                wordWrap: 'on',
+                                automaticLayout: true,
+                            }}
+                        />
+                    </div>
+                </div>
+            )}
+        </Modal>
+
+        <Modal
+            title={triggerEditMode === 'create' ? '新增触发器' : '修改触发器'}
+            open={isTriggerEditModalOpen}
+            onCancel={() => setIsTriggerEditModalOpen(false)}
+            width={800}
+            okText={triggerEditMode === 'create' ? '创建' : '保存'}
+            cancelText="取消"
+            confirmLoading={triggerExecuting}
+            onOk={handleExecuteTriggerSql}
+        >
+            <div style={{ marginBottom: 8, color: '#888', fontSize: 12 }}>
+                {triggerEditMode === 'edit' && selectedTrigger && (
+                    <span>修改触发器时会先删除原触发器，再创建新触发器。</span>
+                )}
+            </div>
+            <div style={{ border: darkMode ? '1px solid #303030' : '1px solid #d9d9d9', borderRadius: 4 }}>
+                <Editor
+                    height="350px"
+                    language="sql"
+                    theme={darkMode ? 'vs-dark' : 'light'}
+                    value={triggerEditSql}
+                    onChange={(val) => setTriggerEditSql(val || '')}
+                    options={{
+                        minimap: { enabled: false },
+                        fontSize: 14,
+                        lineNumbers: 'on',
+                        scrollBeyondLastLine: false,
+                        wordWrap: 'on',
+                        automaticLayout: true,
+                    }}
+                />
+            </div>
+            <p style={{ marginTop: 10, color: '#faad14' }}>请仔细检查 SQL 语句，执行后不可撤销。</p>
+        </Modal>
     </div>
   );
 };

frontend/src/components/TriggerViewer.tsx

@@ -0,0 +1,240 @@
+import React, { useState, useEffect } from 'react';
+import Editor, { loader } from '@monaco-editor/react';
+import { Spin, Alert } from 'antd';
+import { TabData } from '../types';
+import { useStore } from '../store';
+import { DBQuery } from '../../wailsjs/go/app/App';
+
+interface TriggerViewerProps {
+    tab: TabData;
+}
+
+const TriggerViewer: React.FC<TriggerViewerProps> = ({ tab }) => {
+    const [loading, setLoading] = useState(true);
+    const [error, setError] = useState<string | null>(null);
+    const [triggerDefinition, setTriggerDefinition] = useState<string>('');
+
+    const connections = useStore(state => state.connections);
+    const theme = useStore(state => state.theme);
+    const darkMode = theme === 'dark';
+
+    // 初始化透明 Monaco Editor 主题
+    useEffect(() => {
+        loader.init().then(monaco => {
+            monaco.editor.defineTheme('transparent-dark', {
+                base: 'vs-dark',
+                inherit: true,
+                rules: [],
+                colors: {
+                    'editor.background': '#00000000',
+                    'editor.lineHighlightBackground': '#ffffff10',
+                    'editorGutter.background': '#00000000',
+                }
+            });
+            monaco.editor.defineTheme('transparent-light', {
+                base: 'vs',
+                inherit: true,
+                rules: [],
+                colors: {
+                    'editor.background': '#00000000',
+                    'editor.lineHighlightBackground': '#00000010',
+                    'editorGutter.background': '#00000000',
+                }
+            });
+        });
+    }, []);
+
+    const escapeSQLLiteral = (raw: string): string => String(raw || '').replace(/'/g, "''");
+    const quoteSqlServerIdentifier = (raw: string): string => `[${String(raw || '').replace(/]/g, ']]')}]`;
+
+    const getMetadataDialect = (conn: any): string => {
+        const type = String(conn?.config?.type || '').trim().toLowerCase();
+        if (type === 'custom') {
+            return String(conn?.config?.driver || '').trim().toLowerCase();
+        }
+        if (type === 'mariadb') return 'mysql';
+        if (type === 'dameng') return 'dm';
+        return type;
+    };
+
+    const buildShowTriggerQuery = (dialect: string, triggerName: string, dbName: string): string => {
+        const safeTriggerName = escapeSQLLiteral(triggerName);
+        const safeDbName = escapeSQLLiteral(dbName);
+        switch (dialect) {
+            case 'mysql':
+                return `SHOW CREATE TRIGGER \`${triggerName.replace(/`/g, '``')}\``;
+            case 'postgres':
+            case 'kingbase':
+            case 'highgo':
+            case 'vastbase':
+                return `SELECT pg_get_triggerdef(t.oid, true) AS trigger_definition
+FROM pg_trigger t
+JOIN pg_class c ON t.tgrelid = c.oid
+WHERE t.tgname = '${safeTriggerName}'
+  AND NOT t.tgisinternal
+LIMIT 1`;
+            case 'sqlserver': {
+                return `SELECT OBJECT_DEFINITION(OBJECT_ID('${safeTriggerName.replace(/'/g, "''")}')) AS trigger_definition`;
+            }
+            case 'oracle':
+            case 'dm':
+                if (!safeDbName) {
+                    return `SELECT TRIGGER_BODY FROM USER_TRIGGERS WHERE TRIGGER_NAME = '${safeTriggerName.toUpperCase()}'`;
+                }
+                return `SELECT TRIGGER_BODY FROM ALL_TRIGGERS WHERE OWNER = '${safeDbName.toUpperCase()}' AND TRIGGER_NAME = '${safeTriggerName.toUpperCase()}'`;
+            case 'sqlite':
+                return `SELECT sql FROM sqlite_master WHERE type = 'trigger' AND name = '${safeTriggerName}'`;
+            case 'tdengine':
+                return `-- TDengine 不支持触发器`;
+            case 'mongodb':
+                return `-- MongoDB 不支持触发器`;
+            default:
+                return `-- 暂不支持该数据库类型的触发器定义查看`;
+        }
+    };
+
+    const extractTriggerDefinition = (dialect: string, data: any[]): string => {
+        if (!data || data.length === 0) {
+            return '-- 未找到触发器定义';
+        }
+
+        const row = data[0];
+
+        switch (dialect) {
+            case 'mysql': {
+                // MySQL SHOW CREATE TRIGGER returns: Trigger, sql_mode, SQL Original Statement, ...
+                const keys = Object.keys(row);
+                const sqlKey = keys.find(k => k.toLowerCase().includes('statement') || k.toLowerCase() === 'sql original statement');
+                if (sqlKey) return row[sqlKey];
+                // Fallback: try to find any key containing CREATE TRIGGER
+                for (const key of keys) {
+                    const val = String(row[key] || '');
+                    if (val.toUpperCase().includes('CREATE TRIGGER')) {
+                        return val;
+                    }
+                }
+                return JSON.stringify(row, null, 2);
+            }
+            case 'postgres':
+            case 'kingbase':
+            case 'highgo':
+            case 'vastbase': {
+                return row.trigger_definition || row.TRIGGER_DEFINITION || Object.values(row)[0] || '';
+            }
+            case 'sqlserver': {
+                return row.trigger_definition || row.TRIGGER_DEFINITION || Object.values(row)[0] || '';
+            }
+            case 'oracle':
+            case 'dm': {
+                return row.trigger_body || row.TRIGGER_BODY || Object.values(row)[0] || '';
+            }
+            case 'sqlite': {
+                return row.sql || row.SQL || Object.values(row)[0] || '';
+            }
+            default:
+                return JSON.stringify(row, null, 2);
+        }
+    };
+
+    useEffect(() => {
+        const loadTriggerDefinition = async () => {
+            setLoading(true);
+            setError(null);
+
+            const conn = connections.find(c => c.id === tab.connectionId);
+            if (!conn) {
+                setError('未找到数据库连接');
+                setLoading(false);
+                return;
+            }
+
+            const triggerName = tab.triggerName || '';
+            const dbName = tab.dbName || '';
+
+            if (!triggerName) {
+                setError('触发器名称为空');
+                setLoading(false);
+                return;
+            }
+
+            const dialect = getMetadataDialect(conn);
+            const query = buildShowTriggerQuery(dialect, triggerName, dbName);
+
+            if (query.startsWith('--')) {
+                setTriggerDefinition(query);
+                setLoading(false);
+                return;
+            }
+
+            try {
+                const config = {
+                    ...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: '' }
+                };
+
+                const result = await DBQuery(config as any, dbName, query);
+
+                if (result.success && Array.isArray(result.data)) {
+                    const definition = extractTriggerDefinition(dialect, result.data);
+                    setTriggerDefinition(definition);
+                } else {
+                    setError(result.message || '查询触发器定义失败');
+                }
+            } catch (e: any) {
+                setError('查询触发器定义失败: ' + (e?.message || String(e)));
+            } finally {
+                setLoading(false);
+            }
+        };
+
+        loadTriggerDefinition();
+    }, [tab.connectionId, tab.dbName, tab.triggerName, connections]);
+
+    if (loading) {
+        return (
+            <div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', height: '100%' }}>
+                <Spin tip="加载触发器定义..." />
+            </div>
+        );
+    }
+
+    if (error) {
+        return (
+            <div style={{ padding: 16 }}>
+                <Alert type="error" message="加载失败" description={error} showIcon />
+            </div>
+        );
+    }
+
+    return (
+        <div style={{ display: 'flex', flexDirection: 'column', height: '100%' }}>
+            <div style={{ padding: '8px 16px', borderBottom: darkMode ? '1px solid #303030' : '1px solid #f0f0f0' }}>
+                <strong>触发器: </strong>{tab.triggerName}
+                {tab.dbName && <span style={{ marginLeft: 16, color: '#888' }}>数据库: {tab.dbName}</span>}
+            </div>
+            <div style={{ flex: 1, minHeight: 0 }}>
+                <Editor
+                    height="100%"
+                    language="sql"
+                    theme={darkMode ? 'transparent-dark' : 'transparent-light'}
+                    value={triggerDefinition}
+                    options={{
+                        readOnly: true,
+                        minimap: { enabled: false },
+                        fontSize: 14,
+                        lineNumbers: 'on',
+                        scrollBeyondLastLine: false,
+                        wordWrap: 'on',
+                        automaticLayout: true,
+                    }}
+                />
+            </div>
+        </div>
+    );
+};
+
+export default TriggerViewer;

frontend/src/store.ts

@@ -37,11 +37,13 @@ interface AppState {
   sqlFormatOptions: { keywordCase: 'upper' | 'lower' };
   queryOptions: { maxRows: number };
   sqlLogs: SqlLog[];
-  
+  tableAccessCount: Record<string, number>;
+  tableSortPreference: Record<string, 'name' | 'frequency'>;
+
   addConnection: (conn: SavedConnection) => void;
   updateConnection: (conn: SavedConnection) => void;
   removeConnection: (id: string) => void;
-  
+
   addTab: (tab: TabData) => void;
   closeTab: (id: string) => void;
   closeOtherTabs: (id: string) => void;
@@ -58,9 +60,12 @@ interface AppState {
   setAppearance: (appearance: Partial<{ opacity: number; blur: number }>) => void;
   setSqlFormatOptions: (options: { keywordCase: 'upper' | 'lower' }) => void;
   setQueryOptions: (options: Partial<{ maxRows: number }>) => void;
-  
+
   addSqlLog: (log: SqlLog) => void;
   clearSqlLogs: () => void;
+
+  recordTableAccess: (connectionId: string, dbName: string, tableName: string) => void;
+  setTableSortPreference: (connectionId: string, dbName: string, sortBy: 'name' | 'frequency') => void;
 }
 
 export const useStore = create<AppState>()(
@@ -76,10 +81,12 @@ export const useStore = create<AppState>()(
       sqlFormatOptions: { keywordCase: 'upper' },
       queryOptions: { maxRows: 5000 },
       sqlLogs: [],
+      tableAccessCount: {},
+      tableSortPreference: {},
 
       addConnection: (conn) => set((state) => ({ connections: [...state.connections, conn] })),
-      updateConnection: (conn) => set((state) => ({ 
-          connections: state.connections.map(c => c.id === conn.id ? conn : c) 
+      updateConnection: (conn) => set((state) => ({
+          connections: state.connections.map(c => c.id === conn.id ? conn : c)
       })),
       removeConnection: (id) => set((state) => ({ connections: state.connections.filter(c => c.id !== id) })),
 
@@ -145,9 +152,30 @@ export const useStore = create<AppState>()(
       setAppearance: (appearance) => set((state) => ({ appearance: { ...state.appearance, ...appearance } })),
       setSqlFormatOptions: (options) => set({ sqlFormatOptions: options }),
       setQueryOptions: (options) => set((state) => ({ queryOptions: { ...state.queryOptions, ...options } })),
-      
+
       addSqlLog: (log) => set((state) => ({ sqlLogs: [log, ...state.sqlLogs].slice(0, 1000) })), // Keep last 1000 logs
       clearSqlLogs: () => set({ sqlLogs: [] }),
+
+      recordTableAccess: (connectionId, dbName, tableName) => set((state) => {
+        const key = `${connectionId}-${dbName}-${tableName}`;
+        const currentCount = state.tableAccessCount[key] || 0;
+        return {
+          tableAccessCount: {
+            ...state.tableAccessCount,
+            [key]: currentCount + 1
+          }
+        };
+      }),
+
+      setTableSortPreference: (connectionId, dbName, sortBy) => set((state) => {
+        const key = `${connectionId}-${dbName}`;
+        return {
+          tableSortPreference: {
+            ...state.tableSortPreference,
+            [key]: sortBy
+          }
+        };
+      }),
     }),
     {
       name: 'lite-db-storage', // name of the item in the storage (must be unique)
@@ -178,7 +206,16 @@ export const useStore = create<AppState>()(
 
         return nextState as AppState;
       },
-      partialize: (state) => ({ connections: state.connections, savedQueries: state.savedQueries, theme: state.theme, appearance: state.appearance, sqlFormatOptions: state.sqlFormatOptions, queryOptions: state.queryOptions }), // Don't persist logs
+      partialize: (state) => ({
+        connections: state.connections,
+        savedQueries: state.savedQueries,
+        theme: state.theme,
+        appearance: state.appearance,
+        sqlFormatOptions: state.sqlFormatOptions,
+        queryOptions: state.queryOptions,
+        tableAccessCount: state.tableAccessCount,
+        tableSortPreference: state.tableSortPreference
+      }), // Don't persist logs
     }
   )
 );

frontend/src/types.ts

@@ -12,10 +12,32 @@ export interface ConnectionConfig {
   port: number;
   user: string;
   password?: string;
+  savePassword?: boolean;
   database?: string;
   useSSH?: boolean;
   ssh?: SSHConfig;
   redisDB?: number; // Redis database index (0-15)
+  uri?: string; // Connection URI for copy/paste
+  hosts?: string[]; // Multi-host addresses: host:port
+  topology?: 'single' | 'replica';
+  mysqlReplicaUser?: string;
+  mysqlReplicaPassword?: string;
+  replicaSet?: string;
+  authSource?: string;
+  readPreference?: string;
+  mongoSrv?: boolean;
+  mongoAuthMechanism?: string;
+  mongoReplicaUser?: string;
+  mongoReplicaPassword?: string;
+}
+
+export interface MongoMemberInfo {
+  host: string;
+  role: string;
+  state: string;
+  stateCode?: number;
+  healthy: boolean;
+  isSelf?: boolean;
 }
 
 export interface SavedConnection {
@@ -62,7 +84,7 @@ export interface TriggerDefinition {
 export interface TabData {
   id: string;
   title: string;
-  type: 'query' | 'table' | 'design' | 'redis-keys' | 'redis-command';
+  type: 'query' | 'table' | 'design' | 'redis-keys' | 'redis-command' | 'trigger';
   connectionId: string;
   dbName?: string;
   tableName?: string;
@@ -70,6 +92,7 @@ export interface TabData {
   initialTab?: string;
   readOnly?: boolean;
   redisDB?: number; // Redis database index for redis tabs
+  triggerName?: string; // Trigger name for trigger tabs
 }
 
 export interface DatabaseNode {

frontend/src/utils/appearance.ts

@@ -2,10 +2,10 @@ const DEFAULT_OPACITY = 1.0;
 const MIN_OPACITY = 0.1;
 const MAX_OPACITY = 1.0;
 
-// macOS 端进一步增强通透感：同滑块值下更低等效不透明度、降低过重模糊。
-const MAC_OPACITY_FACTOR = 0.20;
+// 平台透明度映射因子：值越大，滑块变化越平滑（1.0 = 线性映射）
+const MAC_OPACITY_FACTOR = 0.60;
 const MAC_BLUR_FACTOR = 1.00;
-const WINDOWS_OPACITY_FACTOR = 0.20;
+const WINDOWS_OPACITY_FACTOR = 0.70;
 const WINDOWS_BLUR_FACTOR = 1.00;
 
 const clamp = (value: number, min: number, max: number) => Math.min(max, Math.max(min, value));

frontend/src/utils/sql.ts

@@ -1,5 +1,6 @@
 export type FilterCondition = {
   id?: number;
+  enabled?: boolean;
   column?: string;
   op?: string;
   value?: string;
@@ -23,6 +24,8 @@ const needsQuote = (ident: string): boolean => {
   if (!ident) return false;
   // 如果包含特殊字符（非字母、数字、下划线）则需要引号
   if (!/^[a-zA-Z_][a-zA-Z0-9_]*$/.test(ident)) return true;
+  // PostgreSQL 会将未加引号的标识符折叠为小写，含大写字母时必须加引号
+  if (/[A-Z]/.test(ident)) return true;
   // 常见 SQL 保留字列表（简化版）
   const reserved = ['select', 'from', 'where', 'table', 'index', 'user', 'order', 'group', 'by', 'limit', 'offset', 'and', 'or', 'not', 'null', 'true', 'false', 'key', 'primary', 'foreign', 'references', 'default', 'constraint', 'create', 'drop', 'alter', 'insert', 'update', 'delete', 'set', 'values', 'into', 'join', 'left', 'right', 'inner', 'outer', 'on', 'as', 'is', 'in', 'like', 'between', 'case', 'when', 'then', 'else', 'end', 'having', 'distinct', 'all', 'any', 'exists', 'union', 'except', 'intersect'];
   return reserved.includes(ident.toLowerCase());
@@ -33,7 +36,7 @@ export const quoteIdentPart = (dbType: string, ident: string) => {
   if (!raw) return raw;
   const dbTypeLower = (dbType || '').toLowerCase();
 
-  if (dbTypeLower === 'mysql') {
+  if (dbTypeLower === 'mysql' || dbTypeLower === 'tdengine') {
     return `\`${raw.replace(/`/g, '``')}\``;
   }
 
@@ -73,6 +76,8 @@ export const buildWhereSQL = (dbType: string, conditions: FilterCondition[]) =>
   const whereParts: string[] = [];
 
   (conditions || []).forEach((cond) => {
+    if (cond?.enabled === false) return;
+
     const op = (cond?.op || '').trim();
     const column = (cond?.column || '').trim();
     const value = (cond?.value ?? '').toString();
@@ -195,4 +200,3 @@ export const buildWhereSQL = (dbType: string, conditions: FilterCondition[]) =>
 
   return whereParts.length > 0 ? `WHERE ${whereParts.join(' AND ')}` : '';
 };
-

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

@@ -62,6 +62,8 @@ export function ImportData(arg1:connection.ConnectionConfig,arg2:string,arg3:str
 
 export function InstallUpdateAndRestart():Promise<connection.QueryResult>;
 
+export function MongoDiscoverMembers(arg1:connection.ConnectionConfig):Promise<connection.QueryResult>;
+
 export function MySQLConnect(arg1:connection.ConnectionConfig):Promise<connection.QueryResult>;
 
 export function MySQLGetDatabases(arg1:connection.ConnectionConfig):Promise<connection.QueryResult>;

frontend/wailsjs/go/app/App.js

@@ -118,6 +118,10 @@ export function InstallUpdateAndRestart() {
   return window['go']['app']['App']['InstallUpdateAndRestart']();
 }
 
+export function MongoDiscoverMembers(arg1) {
+  return window['go']['app']['App']['MongoDiscoverMembers'](arg1);
+}
+
 export function MySQLConnect(arg1) {
   return window['go']['app']['App']['MySQLConnect'](arg1);
 }

frontend/wailsjs/go/models.ts

@@ -74,6 +74,7 @@ export namespace connection {
 	    port: number;
 	    user: string;
 	    password: string;
+	    savePassword?: boolean;
 	    database: string;
 	    useSSH: boolean;
 	    ssh: SSHConfig;
@@ -81,6 +82,18 @@ export namespace connection {
 	    dsn?: string;
 	    timeout?: number;
 	    redisDB?: number;
+	    uri?: string;
+	    hosts?: string[];
+	    topology?: string;
+	    mysqlReplicaUser?: string;
+	    mysqlReplicaPassword?: string;
+	    replicaSet?: string;
+	    authSource?: string;
+	    readPreference?: string;
+	    mongoSrv?: boolean;
+	    mongoAuthMechanism?: string;
+	    mongoReplicaUser?: string;
+	    mongoReplicaPassword?: string;
 	
 	    static createFrom(source: any = {}) {
 	        return new ConnectionConfig(source);
@@ -93,6 +106,7 @@ export namespace connection {
 	        this.port = source["port"];
 	        this.user = source["user"];
 	        this.password = source["password"];
+	        this.savePassword = source["savePassword"];
 	        this.database = source["database"];
 	        this.useSSH = source["useSSH"];
 	        this.ssh = this.convertValues(source["ssh"], SSHConfig);
@@ -100,6 +114,18 @@ export namespace connection {
 	        this.dsn = source["dsn"];
 	        this.timeout = source["timeout"];
 	        this.redisDB = source["redisDB"];
+	        this.uri = source["uri"];
+	        this.hosts = source["hosts"];
+	        this.topology = source["topology"];
+	        this.mysqlReplicaUser = source["mysqlReplicaUser"];
+	        this.mysqlReplicaPassword = source["mysqlReplicaPassword"];
+	        this.replicaSet = source["replicaSet"];
+	        this.authSource = source["authSource"];
+	        this.readPreference = source["readPreference"];
+	        this.mongoSrv = source["mongoSrv"];
+	        this.mongoAuthMechanism = source["mongoAuthMechanism"];
+	        this.mongoReplicaUser = source["mongoReplicaUser"];
+	        this.mongoReplicaPassword = source["mongoReplicaPassword"];
 	    }
 	
 		convertValues(a: any, classs: any, asMap: boolean = false): any {

go.mod

@@ -7,10 +7,14 @@ require (
 	gitee.com/chunanyong/dm v1.8.22
 	github.com/go-sql-driver/mysql v1.9.3
 	github.com/lib/pq v1.11.1
+	github.com/microsoft/go-mssqldb v1.9.6
 	github.com/redis/go-redis/v9 v9.17.3
 	github.com/sijms/go-ora/v2 v2.9.0
+	github.com/taosdata/driver-go/v3 v3.7.8
 	github.com/wailsapp/wails/v2 v2.11.0
+	go.mongodb.org/mongo-driver/v2 v2.5.0
 	golang.org/x/crypto v0.47.0
+	golang.org/x/text v0.33.0
 	modernc.org/sqlite v1.44.3
 )
 
@@ -22,10 +26,15 @@ require (
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
+	github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 // indirect
+	github.com/golang-sql/sqlexp v0.1.0 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
+	github.com/hashicorp/go-version v1.7.0 // indirect
 	github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.17.6 // indirect
 	github.com/labstack/echo/v4 v4.13.3 // indirect
 	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/leaanthony/go-ansi-parser v1.6.1 // indirect
@@ -34,21 +43,28 @@ require (
 	github.com/leaanthony/u v1.1.1 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/samber/lo v1.49.1 // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
 	github.com/tkrajina/go-reflector v0.5.8 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
 	github.com/wailsapp/go-webview2 v1.0.22 // indirect
 	github.com/wailsapp/mimetype v1.4.1 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/scram v1.2.0 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
+	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
 	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
 	golang.org/x/net v0.48.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/sys v0.40.0 // indirect
-	golang.org/x/text v0.33.0 // indirect
 	modernc.org/libc v1.67.6 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect

go.sum

@@ -4,6 +4,18 @@ gitea.com/kingbase/gokb v0.0.0-20201021123113-29bd62a876c3 h1:QjslQNaH5Nuap5i4ni
 gitea.com/kingbase/gokb v0.0.0-20201021123113-29bd62a876c3/go.mod h1:7lH5A1jzCXD9Nl16DzaBUOfDAT8NPrDmZwKu1p5wf94=
 gitee.com/chunanyong/dm v1.8.22 h1:H7fsrnUIvEA0jlDWew7vwELry1ff+tLMIu2Fk2cIBSg=
 gitee.com/chunanyong/dm v1.8.22/go.mod h1:EPRJnuPFgbyOFgJ0TRYCTGzhq+ZT4wdyaj/GW/LLcNg=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.18.0 h1:Gt0j3wceWMwPmiazCa8MzMA0MfhmPIz0Qp0FJ6qcM0U=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.18.0/go.mod h1:Ot/6aikWnKWi4l9QB7qVSwa8iMphQNqkWALMoNT3rzM=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.10.1 h1:B+blDbyVIG3WaikNxPnhPiJ1MThR03b3vKGtER95TP4=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.10.1/go.mod h1:JdM5psgjfBf5fo2uWOZhflPWyDBZ/O/CNAH9CtsuZE4=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.1 h1:FPKJS1T+clwv+OLGt13a8UjqeRuh0O4SJ3lUriThc+4=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.1/go.mod h1:j2chePtV91HrC22tGoRX3sGY42uF13WzmmV80/OdVAA=
+github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/azkeys v1.3.1 h1:Wgf5rZba3YZqeTNJPtvqZoBu1sBN/L4sry+u2U3Y75w=
+github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/azkeys v1.3.1/go.mod h1:xxCBG/f/4Vbmh2XQJBsOmNdxWUY5j/s27jujKPbQf14=
+github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/internal v1.1.1 h1:bFWuoEKg+gImo7pvkiQEFAc8ocibADgXeiLAxWhWmkI=
+github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/internal v1.1.1/go.mod h1:Vih/3yc6yac2JzU4hzpaDupBJP0Flaia9rXXrU8xyww=
+github.com/AzureAD/microsoft-authentication-library-for-go v1.4.2 h1:oygO0locgZJe7PpYPXT5A29ZkwJaPqcva7BVeemZOZs=
+github.com/AzureAD/microsoft-authentication-library-for-go v1.4.2/go.mod h1:wP83P5OoQ5p6ip3ScPr0BAq0BvuPAvacpEuSzyouqAI=
 github.com/bep/debounce v1.2.1 h1:v67fRdBA9UQu2NhLFXrSg0Brw7CexQekrBwDMM8bzeY=
 github.com/bep/debounce v1.2.1/go.mod h1:H8yggRPQKLUhUoqrJC1bO2xNya7vanpDl7xR3ISbCJ0=
 github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
@@ -12,6 +24,7 @@ github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
 github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
@@ -24,19 +37,37 @@ github.com/go-sql-driver/mysql v1.9.3 h1:U/N249h2WzJ3Ukj8SowVFjdtZKfu9vlLZxjPXV1
 github.com/go-sql-driver/mysql v1.9.3/go.mod h1:qn46aNg1333BRMNU69Lq93t8du/dwxI64Gl8i5p1WMU=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
 github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/golang-jwt/jwt/v5 v5.2.2 h1:Rl4B7itRWVtYIHFrSNd7vhTiz9UpLdi6gZhZ3wEeDy8=
+github.com/golang-jwt/jwt/v5 v5.2.2/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
+github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 h1:au07oEsX2xN0ktxqI+Sida1w446QrXBRJ0nee3SNZlA=
+github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
+github.com/golang-sql/sqlexp v0.1.0 h1:ZCD6MBpcuOVfGVqsEmY5/4FtYiKz6tSyUv9LPEDei6A=
+github.com/golang-sql/sqlexp v0.1.0/go.mod h1:J4ad9Vo8ZCWQ2GMrC4UCQy1JpCbwU9m3EOqtpKwwwHI=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
 github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
 github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/hashicorp/go-version v1.7.0 h1:5tqGy27NaOTB8yJKUZELlFAS/LTKJkrmONwQKeRZfjY=
+github.com/hashicorp/go-version v1.7.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
 github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e h1:Q3+PugElBCf4PFpxhErSzU3/PY5sFL5Z6rfv4AbGAck=
 github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e/go.mod h1:alcuEEnZsY1WQsagKhZDsoPCRoOijYqhZvPwLG0kzVs=
+github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/klauspost/compress v1.17.6 h1:60eq2E/jlfwQXtvZEeBUYADs+BwKBWURIY+Gj2eRGjI=
+github.com/klauspost/compress v1.17.6/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
+github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
+github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/labstack/echo/v4 v4.13.3 h1:pwhpCPrTl5qry5HRdM5FwdXnhXSLSY+WE+YQSeCaafY=
 github.com/labstack/echo/v4 v4.13.3/go.mod h1:o90YNEeQWjDozo584l7AwhJMHN0bOC4tAfg+Xox9q5g=
 github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
@@ -61,6 +92,12 @@ github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovk
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/microsoft/go-mssqldb v1.9.6 h1:1MNQg5UiSsokiPz3++K2KPx4moKrwIqly1wv+RyCKTw=
+github.com/microsoft/go-mssqldb v1.9.6/go.mod h1:yYMPDufyoF2vVuVCUGtZARr06DKFIhMrluTcgWlXpr4=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
+github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
 github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
 github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c h1:+mdjkGKdHQG3305AYmdv1U2eRNDiU2ErMBj1gwrq8eQ=
@@ -78,10 +115,22 @@ github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/samber/lo v1.49.1 h1:4BIFyVfuQSEpluc7Fua+j1NolZHiEHEpaSEKdsH0tew=
 github.com/samber/lo v1.49.1/go.mod h1:dO6KHFzUKXgP8LDhU0oI8d2hekjXnGOu0DB8Jecxd6o=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
 github.com/sijms/go-ora/v2 v2.9.0 h1:+iQbUeTeCOFMb5BsOMgUhV8KWyrv9yjKpcK4x7+MFrg=
 github.com/sijms/go-ora/v2 v2.9.0/go.mod h1:QgFInVi3ZWyqAiJwzBQA+nbKYKH77tdp1PYoCqhR2dU=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0 h1:1zr/of2m5FGMsad5YfcqgdqdWrIhu+EBEJRhR1U7z/c=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/taosdata/driver-go/v3 v3.7.8 h1:N2H6HLLZH2ve2ipcoFgG9BJS+yW0XksqNYwEdSmHaJk=
+github.com/taosdata/driver-go/v3 v3.7.8/go.mod h1:gSxBEPOueMg0rTmMO1Ug6aeD7AwGdDGvUtLrsDTTpYc=
 github.com/tkrajina/go-reflector v0.5.8 h1:yPADHrwmUbMq4RGEyaOUpz2H90sRsETNVpjzo3DLVQQ=
 github.com/tkrajina/go-reflector v0.5.8/go.mod h1:ECbqLgccecY5kPmPmXg1MrHW585yMcDkVl6IvJe64T4=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
@@ -94,35 +143,68 @@ github.com/wailsapp/mimetype v1.4.1 h1:pQN9ycO7uo4vsUUuPeHEYoUkLVkaRntMnHJxVwYhw
 github.com/wailsapp/mimetype v1.4.1/go.mod h1:9aV5k31bBOv5z6u+QP8TltzvNGJPmNJD4XlAL3U+j3o=
 github.com/wailsapp/wails/v2 v2.11.0 h1:seLacV8pqupq32IjS4Y7V8ucab0WZwtK6VvUVxSBtqQ=
 github.com/wailsapp/wails/v2 v2.11.0/go.mod h1:jrf0ZaM6+GBc1wRmXsM8cIvzlg0karYin3erahI4+0k=
+github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=
+github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI=
+github.com/xdg-go/scram v1.2.0 h1:bYKF2AEwG5rqd1BumT4gAnvwU/M9nBp2pTSxeZw7Wvs=
+github.com/xdg-go/scram v1.2.0/go.mod h1:3dlrS0iBaWKYVt2ZfA4cj48umJZ+cAEbR6/SjLA88I8=
+github.com/xdg-go/stringprep v1.0.4 h1:XLI/Ng3O1Atzq0oBs3TWm+5ZVgkq2aqdlvP9JtoZ6c8=
+github.com/xdg-go/stringprep v1.0.4/go.mod h1:mPGuuIYwz7CmR2bT9j4GbQqutWS1zV24gijq1dTyGkM=
+github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 h1:ilQV1hzziu+LLM3zUTJ0trRztfwgjqKnBWNtSRkbmwM=
+github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfSfmXjznFBSZNN13rSJjlIOI1fUNAtF7rmI=
+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+go.mongodb.org/mongo-driver/v2 v2.5.0 h1:yXUhImUjjAInNcpTcAlPHiT7bIXhshCTL3jVBkF3xaE=
+go.mongodb.org/mongo-driver/v2 v2.5.0/go.mod h1:yOI9kBsufol30iFsl1slpdq1I0eHPzybRWdyYUs8K/0=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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 golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
 golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 h1:mgKeJMpvi0yx/sU5GsxQ7p6s2wtOnGAHZWCHUM4KGzY=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546/go.mod h1:j/pmGrbnkbPtQfxEe5D0VQhZC6qKbfKifgD0oM7sR70=
+golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
 golang.org/x/mod v0.31.0/go.mod h1:43JraMp9cGx1Rx3AqioxrbrhNsLl2l/iNAvuBkrezpg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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 golang.org/x/net v0.0.0-20210505024714-0287a6fb4125/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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 golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
 golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
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 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
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 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
 golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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 golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
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+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.40.0 h1:yLkxfA+Qnul4cs9QA3KnlFu0lVmd8JJfoq+E41uSutA=
 golang.org/x/tools v0.40.0/go.mod h1:Ik/tzLRlbscWpqqMRjyWYDisX8bG13FrdXp3o4Sr9lc=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 modernc.org/cc/v4 v4.27.1 h1:9W30zRlYrefrDV2JE2O8VDtJ1yPGownxciz5rrbQZis=

internal/app/app.go

@@ -103,10 +103,11 @@ type withLogHint struct {
 }
 
 func (e withLogHint) Error() string {
+	message := normalizeErrorMessage(e.err)
 	if strings.TrimSpace(e.logPath) == "" {
-		return e.err.Error()
+		return message
 	}
-	return fmt.Sprintf("%s（详细日志：%s）", e.err.Error(), e.logPath)
+	return fmt.Sprintf("%s（详细日志：%s）", message, e.logPath)
 }
 
 func (e withLogHint) Unwrap() error {
@@ -128,6 +129,33 @@ func formatConnSummary(config connection.ConnectionConfig) string {
 	b.WriteString(fmt.Sprintf("类型=%s 地址=%s:%d 数据库=%s 用户=%s 超时=%ds",
 		config.Type, config.Host, config.Port, dbName, config.User, timeoutSeconds))
 
+	if len(config.Hosts) > 0 {
+		b.WriteString(fmt.Sprintf(" 节点数=%d", len(config.Hosts)))
+	}
+	if strings.TrimSpace(config.Topology) != "" {
+		b.WriteString(fmt.Sprintf(" 拓扑=%s", strings.TrimSpace(config.Topology)))
+	}
+	if strings.TrimSpace(config.URI) != "" {
+		b.WriteString(fmt.Sprintf(" URI=已配置(长度=%d)", len(config.URI)))
+	}
+	if strings.TrimSpace(config.MySQLReplicaUser) != "" {
+		b.WriteString(" MySQL从库凭据=已配置")
+	}
+	if strings.EqualFold(strings.TrimSpace(config.Type), "mongodb") {
+		if strings.TrimSpace(config.MongoReplicaUser) != "" {
+			b.WriteString(" Mongo从库凭据=已配置")
+		}
+		if strings.TrimSpace(config.ReplicaSet) != "" {
+			b.WriteString(fmt.Sprintf(" 副本集=%s", strings.TrimSpace(config.ReplicaSet)))
+		}
+		if strings.TrimSpace(config.ReadPreference) != "" {
+			b.WriteString(fmt.Sprintf(" 读偏好=%s", strings.TrimSpace(config.ReadPreference)))
+		}
+		if strings.TrimSpace(config.AuthSource) != "" {
+			b.WriteString(fmt.Sprintf(" 认证库=%s", strings.TrimSpace(config.AuthSource)))
+		}
+	}
+
 	if config.UseSSH {
 		b.WriteString(fmt.Sprintf(" SSH=%s:%d 用户=%s", config.SSH.Host, config.SSH.Port, config.SSH.User))
 	}

internal/app/db_context.go

@@ -14,8 +14,8 @@ func normalizeRunConfig(config connection.ConnectionConfig, dbName string) conne
 	}
 
 	switch strings.ToLower(strings.TrimSpace(config.Type)) {
-	case "mysql", "postgres", "kingbase":
-		// 这些类型的 dbName 表示“数据库”，需要写入连接配置以选择目标库。
+	case "mysql", "mariadb", "postgres", "kingbase", "highgo", "vastbase", "sqlserver", "mongodb", "tdengine":
+		// 这些类型的 dbName 表示"数据库"，需要写入连接配置以选择目标库。
 		runConfig.Database = name
 	case "dameng":
 		// 达梦使用 schema 参数，沿用现有行为：dbName 表示 schema。
@@ -45,12 +45,14 @@ func normalizeSchemaAndTable(config connection.ConnectionConfig, dbName string,
 	}
 
 	switch strings.ToLower(strings.TrimSpace(config.Type)) {
-	case "postgres", "kingbase":
-		// PG/金仓：dbName 在 UI 里是“数据库”，schema 需从 tableName 或使用默认 public。
+	case "postgres", "kingbase", "highgo", "vastbase":
+		// PG/金仓/瀚高/海量：dbName 在 UI 里是"数据库"，schema 需从 tableName 或使用默认 public。
 		return "public", rawTable
+	case "sqlserver":
+		// SQL Server：dbName 表示数据库，schema 默认 dbo
+		return "dbo", rawTable
 	default:
 		// MySQL：dbName 表示数据库；Oracle/达梦：dbName 表示 schema/owner。
 		return rawDB, rawTable
 	}
 }
-

internal/app/error_text.go

@@ -0,0 +1,100 @@
+package app
+
+import (
+	"strings"
+	"unicode"
+	"unicode/utf8"
+
+	"golang.org/x/text/encoding/simplifiedchinese"
+	"golang.org/x/text/transform"
+)
+
+func normalizeErrorMessage(err error) string {
+	if err == nil {
+		return ""
+	}
+	return normalizeMixedEncodingText(err.Error())
+}
+
+func normalizeMixedEncodingText(text string) string {
+	if text == "" {
+		return text
+	}
+
+	raw := []byte(text)
+	output := make([]byte, 0, len(raw)+16)
+	suspect := make([]byte, 0, 16)
+
+	flushSuspect := func() {
+		if len(suspect) == 0 {
+			return
+		}
+
+		fallback := strings.ToValidUTF8(string(suspect), "<22>")
+		decoded, _, err := transform.Bytes(simplifiedchinese.GB18030.NewDecoder(), suspect)
+		if err == nil && utf8.Valid(decoded) {
+			candidate := string(decoded)
+			if scoreDecodedText(candidate) > scoreDecodedText(fallback) {
+				output = append(output, []byte(candidate)...)
+			} else {
+				output = append(output, []byte(fallback)...)
+			}
+		} else {
+			output = append(output, []byte(fallback)...)
+		}
+
+		suspect = suspect[:0]
+	}
+
+	for len(raw) > 0 {
+		r, size := utf8.DecodeRune(raw)
+		if r == utf8.RuneError && size == 1 {
+			suspect = append(suspect, raw[0])
+			raw = raw[1:]
+			continue
+		}
+
+		if isLikelyMojibakeRune(r) {
+			suspect = append(suspect, raw[:size]...)
+		} else {
+			flushSuspect()
+			output = append(output, raw[:size]...)
+		}
+		raw = raw[size:]
+	}
+
+	flushSuspect()
+	return string(output)
+}
+
+func isLikelyMojibakeRune(r rune) bool {
+	if r == utf8.RuneError {
+		return true
+	}
+	if r >= 0x00C0 && r <= 0x02FF {
+		return true
+	}
+	if unicode.In(r, unicode.Hebrew, unicode.Arabic, unicode.Cyrillic, unicode.Greek) {
+		return true
+	}
+	return false
+}
+
+func scoreDecodedText(text string) int {
+	score := 0
+	for _, r := range text {
+		switch {
+		case r == '<27>':
+			score -= 6
+		case unicode.Is(unicode.Han, r):
+			score += 4
+		case isLikelyMojibakeRune(r):
+			score -= 3
+		case unicode.IsPrint(r):
+			score += 1
+		default:
+			score -= 2
+		}
+	}
+	return score
+}

internal/app/error_text_test.go

@@ -0,0 +1,25 @@
+package app
+
+import "testing"
+
+func TestNormalizeMixedEncodingText_GBKErrorMessage(t *testing.T) {
+	raw := []byte("pq: ")
+	raw = append(raw, 0xD3, 0xC3, 0xBB, 0xA7) // 用户
+	raw = append(raw, []byte(` "root" Password `)...)
+	raw = append(raw, 0xC8, 0xCF, 0xD6, 0xA4, 0xCA, 0xA7, 0xB0, 0xDC) // 认证失败
+	raw = append(raw, []byte(" (28P01)")...)
+
+	got := normalizeMixedEncodingText(string(raw))
+	want := `pq: 用户 "root" Password 认证失败 (28P01)`
+	if got != want {
+		t.Fatalf("normalizeMixedEncodingText() mismatch\nwant: %q\ngot:  %q", want, got)
+	}
+}
+
+func TestNormalizeMixedEncodingText_KeepUTF8(t *testing.T) {
+	input := `连接建立后验证失败：pq: password authentication failed for user "root"`
+	got := normalizeMixedEncodingText(input)
+	if got != input {
+		t.Fatalf("expected unchanged utf8 text, got: %q", got)
+	}
+}

internal/app/methods_db.go

@@ -36,6 +36,41 @@ func (a *App) TestConnection(config connection.ConnectionConfig) connection.Quer
 	return connection.QueryResult{Success: true, Message: "连接成功"}
 }
 
+func (a *App) MongoDiscoverMembers(config connection.ConnectionConfig) connection.QueryResult {
+	config.Type = "mongodb"
+
+	dbInst, err := a.getDatabaseForcePing(config)
+	if err != nil {
+		logger.Error(err, "MongoDiscoverMembers 获取连接失败：%s", formatConnSummary(config))
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
+
+	discoverable, ok := dbInst.(interface {
+		DiscoverMembers() (string, []connection.MongoMemberInfo, error)
+	})
+	if !ok {
+		return connection.QueryResult{Success: false, Message: "当前 MongoDB 驱动不支持成员发现"}
+	}
+
+	replicaSet, members, err := discoverable.DiscoverMembers()
+	if err != nil {
+		logger.Error(err, "MongoDiscoverMembers 执行失败：%s", formatConnSummary(config))
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
+
+	data := map[string]interface{}{
+		"replicaSet": replicaSet,
+		"members":    members,
+	}
+
+	logger.Infof("MongoDiscoverMembers 成功：%s 成员数=%d 副本集=%s", formatConnSummary(config), len(members), replicaSet)
+	return connection.QueryResult{
+		Success: true,
+		Message: fmt.Sprintf("发现 %d 个成员", len(members)),
+		Data:    data,
+	}
+}
+
 func (a *App) CreateDatabase(config connection.ConnectionConfig, dbName string) connection.QueryResult {
 	runConfig := config
 	runConfig.Database = ""
@@ -47,9 +82,14 @@ func (a *App) CreateDatabase(config connection.ConnectionConfig, dbName string)
 
 	escapedDbName := strings.ReplaceAll(dbName, "`", "``")
 	query := fmt.Sprintf("CREATE DATABASE `%s` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci", escapedDbName)
-	if runConfig.Type == "postgres" {
+	dbType := strings.ToLower(strings.TrimSpace(runConfig.Type))
+	if dbType == "postgres" || dbType == "kingbase" || dbType == "highgo" || dbType == "vastbase" {
 		escapedDbName = strings.ReplaceAll(dbName, `"`, `""`)
 		query = fmt.Sprintf("CREATE DATABASE \"%s\"", escapedDbName)
+	} else if dbType == "tdengine" {
+		query = fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s", quoteIdentByType(dbType, dbName))
+	} else if dbType == "mariadb" {
+		// MariaDB uses same syntax as MySQL
 	}
 
 	_, err = dbInst.Exec(query)
@@ -95,7 +135,7 @@ func normalizeSchemaAndTableByType(dbType string, dbName string, tableName strin
 	}
 
 	switch dbType {
-	case "postgres", "kingbase":
+	case "postgres", "kingbase", "highgo", "vastbase":
 		return "public", rawTable
 	default:
 		return rawDB, rawTable
@@ -116,7 +156,7 @@ func buildRunConfigForDDL(config connection.ConnectionConfig, dbType string, dbN
 	if strings.EqualFold(strings.TrimSpace(config.Type), "custom") {
 		// custom 连接的 dbName 语义依赖 driver，尽量在常见驱动上对齐内置类型行为。
 		switch dbType {
-		case "mysql", "postgres", "kingbase", "dameng":
+		case "mysql", "mariadb", "postgres", "kingbase", "vastbase", "dameng":
 			if strings.TrimSpace(dbName) != "" {
 				runConfig.Database = strings.TrimSpace(dbName)
 			}
@@ -137,9 +177,9 @@ func (a *App) RenameDatabase(config connection.ConnectionConfig, oldName string,
 
 	dbType := resolveDDLDBType(config)
 	switch dbType {
-	case "mysql":
-		return connection.QueryResult{Success: false, Message: "MySQL 不支持直接重命名数据库，请新建库后迁移数据"}
-	case "postgres", "kingbase":
+	case "mysql", "mariadb":
+		return connection.QueryResult{Success: false, Message: "MySQL/MariaDB 不支持直接重命名数据库，请新建库后迁移数据"}
+	case "postgres", "kingbase", "highgo", "vastbase":
 		if strings.EqualFold(strings.TrimSpace(config.Database), oldName) {
 			return connection.QueryResult{Success: false, Message: "当前连接正在使用目标数据库，请先连接到其他数据库后再重命名"}
 		}
@@ -173,11 +213,11 @@ func (a *App) DropDatabase(config connection.ConnectionConfig, dbName string) co
 		sql       string
 	)
 	switch dbType {
-	case "mysql":
+	case "mysql", "mariadb", "tdengine":
 		runConfig = config
 		runConfig.Database = ""
 		sql = fmt.Sprintf("DROP DATABASE %s", quoteIdentByType(dbType, dbName))
-	case "postgres", "kingbase":
+	case "postgres", "kingbase", "highgo", "vastbase":
 		if strings.EqualFold(strings.TrimSpace(config.Database), dbName) {
 			return connection.QueryResult{Success: false, Message: "当前连接正在使用目标数据库，请先连接到其他数据库后再删除"}
 		}
@@ -215,7 +255,7 @@ func (a *App) RenameTable(config connection.ConnectionConfig, dbName string, old
 
 	dbType := resolveDDLDBType(config)
 	switch dbType {
-	case "mysql", "postgres", "kingbase", "sqlite", "oracle", "dameng":
+	case "mysql", "mariadb", "postgres", "kingbase", "sqlite", "oracle", "dameng", "highgo", "vastbase", "sqlserver":
 	default:
 		return connection.QueryResult{Success: false, Message: fmt.Sprintf("当前数据源(%s)暂不支持重命名表", dbType)}
 	}
@@ -227,10 +267,19 @@ func (a *App) RenameTable(config connection.ConnectionConfig, dbName string, old
 	oldQualifiedTable := quoteTableIdentByType(dbType, schemaName, pureOldTableName)
 	newTableQuoted := quoteIdentByType(dbType, newTableName)
 
-	sql := fmt.Sprintf("ALTER TABLE %s RENAME TO %s", oldQualifiedTable, newTableQuoted)
-	if dbType == "mysql" {
+	var sql string
+	switch dbType {
+	case "mysql", "mariadb":
 		newQualifiedTable := quoteTableIdentByType(dbType, schemaName, newTableName)
 		sql = fmt.Sprintf("RENAME TABLE %s TO %s", oldQualifiedTable, newQualifiedTable)
+	case "sqlserver":
+		// SQL Server 使用 sp_rename，参数为 'schema.oldname', 'newname'
+		oldFullName := schemaName + "." + pureOldTableName
+		escapedOld := strings.ReplaceAll(oldFullName, "'", "''")
+		escapedNew := strings.ReplaceAll(newTableName, "'", "''")
+		sql = fmt.Sprintf("EXEC sp_rename '%s', '%s'", escapedOld, escapedNew)
+	default:
+		sql = fmt.Sprintf("ALTER TABLE %s RENAME TO %s", oldQualifiedTable, newTableQuoted)
 	}
 
 	runConfig := buildRunConfigForDDL(config, dbType, dbName)
@@ -252,7 +301,7 @@ func (a *App) DropTable(config connection.ConnectionConfig, dbName string, table
 
 	dbType := resolveDDLDBType(config)
 	switch dbType {
-	case "mysql", "postgres", "kingbase", "sqlite", "oracle", "dameng":
+	case "mysql", "mariadb", "postgres", "kingbase", "sqlite", "oracle", "dameng", "highgo", "vastbase", "sqlserver", "tdengine":
 	default:
 		return connection.QueryResult{Success: false, Message: fmt.Sprintf("当前数据源(%s)暂不支持删除表", dbType)}
 	}

internal/app/methods_file.go

@@ -408,8 +408,11 @@ func quoteIdentByType(dbType string, ident string) string {
 	}
 
 	switch dbType {
-	case "mysql":
+	case "mysql", "mariadb", "tdengine":
 		return "`" + strings.ReplaceAll(ident, "`", "``") + "`"
+	case "sqlserver":
+		escaped := strings.ReplaceAll(ident, "]", "]]")
+		return "[" + escaped + "]"
 	default:
 		return `"` + strings.ReplaceAll(ident, `"`, `""`) + `"`
 	}

internal/app/methods_update.go

@@ -221,14 +221,18 @@ func (a *App) downloadAndStageUpdate(info UpdateInfo) connection.QueryResult {
 		return connection.QueryResult{Success: false, Message: errMsg}
 	}
 
-	stagedDir, err := os.MkdirTemp(workspaceDir, ".gonavi-update-work-")
-	if err != nil {
-		errMsg := fmt.Sprintf("无法在应用目录创建更新工作目录：%s", workspaceDir)
+	// 使用版本号命名的工作目录，便于识别和调试
+	stagedDir := filepath.Join(workspaceDir, fmt.Sprintf(".gonavi-update-%s-%s", stdRuntime.GOOS, info.LatestVersion))
+	// 清理可能残留的旧目录（上次下载失败后未清理）
+	_ = os.RemoveAll(stagedDir)
+	if err := os.MkdirAll(stagedDir, 0o755); err != nil {
+		errMsg := fmt.Sprintf("无法在应用目录创建更新工作目录：%s", stagedDir)
 		a.emitUpdateDownloadProgress("error", 0, info.AssetSize, errMsg)
 		return connection.QueryResult{Success: false, Message: errMsg}
 	}
 
-	assetPath := filepath.Join(workspaceDir, info.AssetName)
+	// 下载到 staging 目录，避免覆盖正在运行的可执行文件
+	assetPath := filepath.Join(stagedDir, info.AssetName)
 	actualHash, err := downloadFileWithHash(info.AssetURL, assetPath, func(downloaded, total int64) {
 		reportTotal := total
 		if reportTotal <= 0 {
@@ -853,7 +857,12 @@ func detectMacAppPath(exePath string) string {
 	parts := strings.Split(exePath, string(filepath.Separator))
 	for i := len(parts) - 1; i >= 0; i-- {
 		if strings.HasSuffix(parts[i], ".app") {
-			return filepath.Join(parts[:i+1]...)
+			appPath := filepath.Join(parts[:i+1]...)
+			// 确保返回绝对路径
+			if !filepath.IsAbs(appPath) {
+				appPath = string(filepath.Separator) + appPath
+			}
+			return appPath
 		}
 	}
 	return ""

internal/app/sql_sanitize.go

@@ -7,7 +7,7 @@ import (
 
 func sanitizeSQLForPgLike(dbType string, query string) string {
 	switch strings.ToLower(strings.TrimSpace(dbType)) {
-	case "postgres", "kingbase":
+	case "postgres", "kingbase", "highgo", "vastbase":
 		// 有些情况下会出现多层重复引用（例如 """"schema"""" 或 ""schema"""），单次修复不一定收敛。
 		// 这里做有限次数的迭代，直到输出不再变化。
 		out := query

internal/connection/types.go

@@ -11,18 +11,31 @@ type SSHConfig struct {
 
 // ConnectionConfig holds database connection details including SSH
 type ConnectionConfig struct {
-	Type     string    `json:"type"`
-	Host     string    `json:"host"`
-	Port     int       `json:"port"`
-	User     string    `json:"user"`
-	Password string    `json:"password"`
-	Database string    `json:"database"`
-	UseSSH   bool      `json:"useSSH"`
-	SSH      SSHConfig `json:"ssh"`
-	Driver   string    `json:"driver,omitempty"`  // For custom connection
-	DSN      string    `json:"dsn,omitempty"`     // For custom connection
-	Timeout  int       `json:"timeout,omitempty"` // Connection timeout in seconds (default: 30)
-	RedisDB  int       `json:"redisDB,omitempty"` // Redis database index (0-15)
+	Type                 string    `json:"type"`
+	Host                 string    `json:"host"`
+	Port                 int       `json:"port"`
+	User                 string    `json:"user"`
+	Password             string    `json:"password"`
+	SavePassword         bool      `json:"savePassword,omitempty"` // Persist password in saved connection
+	Database             string    `json:"database"`
+	UseSSH               bool      `json:"useSSH"`
+	SSH                  SSHConfig `json:"ssh"`
+	Driver               string    `json:"driver,omitempty"`               // For custom connection
+	DSN                  string    `json:"dsn,omitempty"`                  // For custom connection
+	Timeout              int       `json:"timeout,omitempty"`              // Connection timeout in seconds (default: 30)
+	RedisDB              int       `json:"redisDB,omitempty"`              // Redis database index (0-15)
+	URI                  string    `json:"uri,omitempty"`                  // Connection URI for copy/paste
+	Hosts                []string  `json:"hosts,omitempty"`                // Multi-host addresses: host:port
+	Topology             string    `json:"topology,omitempty"`             // single | replica
+	MySQLReplicaUser     string    `json:"mysqlReplicaUser,omitempty"`     // MySQL replica auth user
+	MySQLReplicaPassword string    `json:"mysqlReplicaPassword,omitempty"` // MySQL replica auth password
+	ReplicaSet           string    `json:"replicaSet,omitempty"`           // MongoDB replica set name
+	AuthSource           string    `json:"authSource,omitempty"`           // MongoDB authSource
+	ReadPreference       string    `json:"readPreference,omitempty"`       // MongoDB readPreference
+	MongoSRV             bool      `json:"mongoSrv,omitempty"`             // MongoDB use mongodb+srv URI scheme
+	MongoAuthMechanism   string    `json:"mongoAuthMechanism,omitempty"`   // MongoDB authMechanism
+	MongoReplicaUser     string    `json:"mongoReplicaUser,omitempty"`     // MongoDB replica auth user
+	MongoReplicaPassword string    `json:"mongoReplicaPassword,omitempty"` // MongoDB replica auth password
 }
 
 // QueryResult is the standard response format for Wails methods
@@ -89,3 +102,12 @@ type ChangeSet struct {
 	Updates []UpdateRow              `json:"updates"`
 	Deletes []map[string]interface{} `json:"deletes"`
 }
+
+type MongoMemberInfo struct {
+	Host      string `json:"host"`
+	Role      string `json:"role"`
+	State     string `json:"state"`
+	StateCode int    `json:"stateCode,omitempty"`
+	Healthy   bool   `json:"healthy"`
+	IsSelf    bool   `json:"isSelf,omitempty"`
+}

internal/db/database.go

@@ -40,6 +40,18 @@ func NewDatabase(dbType string) (Database, error) {
 		return &DamengDB{}, nil
 	case "kingbase":
 		return &KingbaseDB{}, nil
+	case "mongodb":
+		return &MongoDB{}, nil
+	case "sqlserver":
+		return &SqlServerDB{}, nil
+	case "highgo":
+		return &HighGoDB{}, nil
+	case "mariadb":
+		return &MariaDB{}, nil
+	case "vastbase":
+		return &VastbaseDB{}, nil
+	case "tdengine":
+		return &TDengineDB{}, nil
 	case "custom":
 		return &CustomDB{}, nil
 	default:

internal/db/dsn_test.go

@@ -95,3 +95,20 @@ func TestKingbaseDSN_QuotesPasswordWithSpaces(t *testing.T) {
 		t.Fatalf("dsn 未对包含空格的密码进行引号包裹：%s", dsn)
 	}
 }
+
+func TestTDengineDSN_UsesWebSocketFormat(t *testing.T) {
+	td := &TDengineDB{}
+	cfg := connection.ConnectionConfig{
+		Type:     "tdengine",
+		Host:     "127.0.0.1",
+		Port:     6041,
+		User:     "root",
+		Password: "taosdata",
+		Database: "power",
+	}
+
+	dsn := td.getDSN(cfg)
+	if !strings.HasPrefix(dsn, "root:taosdata@ws(127.0.0.1:6041)/power") {
+		t.Fatalf("tdengine dsn 格式不正确：%s", dsn)
+	}
+}

internal/db/highgo_impl.go

@@ -0,0 +1,628 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"net"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"GoNavi-Wails/internal/connection"
+	"GoNavi-Wails/internal/logger"
+	"GoNavi-Wails/internal/ssh"
+	"GoNavi-Wails/internal/utils"
+
+	_ "github.com/lib/pq" // HighGo is PostgreSQL compatible
+)
+
+// HighGoDB implements Database interface for HighGo (瀚高) database
+// HighGo is a PostgreSQL-compatible database, so we reuse PostgreSQL driver
+type HighGoDB struct {
+	conn        *sql.DB
+	pingTimeout time.Duration
+	forwarder   *ssh.LocalForwarder
+}
+
+func (h *HighGoDB) getDSN(config connection.ConnectionConfig) string {
+	// postgres://user:password@host:port/dbname?sslmode=disable
+	dbname := config.Database
+	if dbname == "" {
+		dbname = "highgo" // HighGo default database
+	}
+
+	u := &url.URL{
+		Scheme: "postgres",
+		Host:   net.JoinHostPort(config.Host, strconv.Itoa(config.Port)),
+		Path:   "/" + dbname,
+	}
+	u.User = url.UserPassword(config.User, config.Password)
+	q := url.Values{}
+	q.Set("sslmode", "disable")
+	q.Set("connect_timeout", strconv.Itoa(getConnectTimeoutSeconds(config)))
+	u.RawQuery = q.Encode()
+
+	return u.String()
+}
+
+func (h *HighGoDB) Connect(config connection.ConnectionConfig) error {
+	var dsn string
+
+	if config.UseSSH {
+		logger.Infof("HighGo 使用 SSH 连接：地址=%s:%d 用户=%s", config.Host, config.Port, config.User)
+
+		forwarder, err := ssh.GetOrCreateLocalForwarder(config.SSH, config.Host, config.Port)
+		if err != nil {
+			return fmt.Errorf("创建 SSH 隧道失败：%w", err)
+		}
+		h.forwarder = forwarder
+
+		host, portStr, err := net.SplitHostPort(forwarder.LocalAddr)
+		if err != nil {
+			return fmt.Errorf("解析本地转发地址失败：%w", err)
+		}
+
+		port, err := strconv.Atoi(portStr)
+		if err != nil {
+			return fmt.Errorf("解析本地端口失败：%w", err)
+		}
+
+		localConfig := config
+		localConfig.Host = host
+		localConfig.Port = port
+		localConfig.UseSSH = false
+
+		dsn = h.getDSN(localConfig)
+		logger.Infof("HighGo 通过本地端口转发连接：%s -> %s:%d", forwarder.LocalAddr, config.Host, config.Port)
+	} else {
+		dsn = h.getDSN(config)
+	}
+
+	db, err := sql.Open("postgres", dsn)
+	if err != nil {
+		return fmt.Errorf("打开数据库连接失败：%w", err)
+	}
+	h.conn = db
+	h.pingTimeout = getConnectTimeout(config)
+
+	if err := h.Ping(); err != nil {
+		return fmt.Errorf("连接建立后验证失败：%w", err)
+	}
+	return nil
+}
+
+func (h *HighGoDB) Close() error {
+	if h.forwarder != nil {
+		if err := h.forwarder.Close(); err != nil {
+			logger.Warnf("关闭 HighGo SSH 端口转发失败：%v", err)
+		}
+		h.forwarder = nil
+	}
+
+	if h.conn != nil {
+		return h.conn.Close()
+	}
+	return nil
+}
+
+func (h *HighGoDB) Ping() error {
+	if h.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+	timeout := h.pingTimeout
+	if timeout <= 0 {
+		timeout = 5 * time.Second
+	}
+	ctx, cancel := utils.ContextWithTimeout(timeout)
+	defer cancel()
+	return h.conn.PingContext(ctx)
+}
+
+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")
+	}
+
+	rows, err := h.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+
+	return scanRows(rows)
+}
+
+func (h *HighGoDB) Query(query string) ([]map[string]interface{}, []string, error) {
+	if h.conn == nil {
+		return nil, nil, fmt.Errorf("connection not open")
+	}
+
+	rows, err := h.conn.Query(query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+	return scanRows(rows)
+}
+
+func (h *HighGoDB) ExecContext(ctx context.Context, query string) (int64, error) {
+	if h.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := h.conn.ExecContext(ctx, query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (h *HighGoDB) Exec(query string) (int64, error) {
+	if h.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := h.conn.Exec(query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (h *HighGoDB) GetDatabases() ([]string, error) {
+	data, _, err := h.Query("SELECT datname FROM pg_database WHERE datistemplate = false")
+	if err != nil {
+		return nil, err
+	}
+	var dbs []string
+	for _, row := range data {
+		if val, ok := row["datname"]; ok {
+			dbs = append(dbs, fmt.Sprintf("%v", val))
+		}
+	}
+	return dbs, nil
+}
+
+func (h *HighGoDB) GetTables(dbName string) ([]string, error) {
+	query := "SELECT schemaname, tablename FROM pg_catalog.pg_tables WHERE schemaname != 'information_schema' AND schemaname NOT LIKE 'pg_%' ORDER BY schemaname, tablename"
+	data, _, err := h.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var tables []string
+	for _, row := range data {
+		schema, okSchema := row["schemaname"]
+		name, okName := row["tablename"]
+		if okSchema && okName {
+			tables = append(tables, fmt.Sprintf("%v.%v", schema, name))
+			continue
+		}
+		if okName {
+			tables = append(tables, fmt.Sprintf("%v", name))
+		}
+	}
+	return tables, nil
+}
+
+func (h *HighGoDB) GetCreateStatement(dbName, tableName string) (string, error) {
+	return fmt.Sprintf("-- SHOW CREATE TABLE not fully supported for HighGo in this version.\n-- Table: %s", tableName), nil
+}
+
+func (h *HighGoDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT
+	a.attname AS column_name,
+	pg_catalog.format_type(a.atttypid, a.atttypmod) AS data_type,
+	CASE WHEN a.attnotnull THEN 'NO' ELSE 'YES' END AS is_nullable,
+	pg_get_expr(ad.adbin, ad.adrelid) AS column_default,
+	col_description(a.attrelid, a.attnum) AS comment,
+	CASE WHEN pk.attname IS NOT NULL THEN 'PRI' ELSE '' END AS column_key
+FROM pg_class c
+JOIN pg_namespace n ON n.oid = c.relnamespace
+JOIN pg_attribute a ON a.attrelid = c.oid
+LEFT JOIN pg_attrdef ad ON ad.adrelid = c.oid AND ad.adnum = a.attnum
+LEFT JOIN (
+	SELECT i.indrelid, a3.attname
+	FROM pg_index i
+	JOIN pg_attribute a3 ON a3.attrelid = i.indrelid AND a3.attnum = ANY(i.indkey)
+	WHERE i.indisprimary
+) pk ON pk.indrelid = c.oid AND pk.attname = a.attname
+WHERE c.relkind IN ('r', 'p')
+  AND n.nspname = '%s'
+  AND c.relname = '%s'
+  AND a.attnum > 0
+  AND NOT a.attisdropped
+ORDER BY a.attnum`, esc(schema), esc(table))
+
+	data, _, err := h.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var columns []connection.ColumnDefinition
+	for _, row := range data {
+		col := connection.ColumnDefinition{
+			Name:     fmt.Sprintf("%v", row["column_name"]),
+			Type:     fmt.Sprintf("%v", row["data_type"]),
+			Nullable: fmt.Sprintf("%v", row["is_nullable"]),
+			Key:      fmt.Sprintf("%v", row["column_key"]),
+			Extra:    "",
+			Comment:  "",
+		}
+
+		if v, ok := row["comment"]; ok && v != nil {
+			col.Comment = fmt.Sprintf("%v", v)
+		}
+
+		if v, ok := row["column_default"]; ok && v != nil {
+			def := fmt.Sprintf("%v", v)
+			col.Default = &def
+			if strings.HasPrefix(strings.ToLower(strings.TrimSpace(def)), "nextval(") {
+				col.Extra = "auto_increment"
+			}
+		}
+
+		columns = append(columns, col)
+	}
+	return columns, nil
+}
+
+func (h *HighGoDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT
+	i.relname AS index_name,
+	a.attname AS column_name,
+	ix.indisunique AS is_unique,
+	x.ordinality AS seq_in_index,
+	am.amname AS index_type
+FROM pg_class t
+JOIN pg_namespace n ON n.oid = t.relnamespace
+JOIN pg_index ix ON t.oid = ix.indrelid
+JOIN pg_class i ON i.oid = ix.indexrelid
+JOIN pg_am am ON i.relam = am.oid
+JOIN unnest(ix.indkey) WITH ORDINALITY AS x(attnum, ordinality) ON TRUE
+JOIN pg_attribute a ON a.attrelid = t.oid AND a.attnum = x.attnum
+WHERE t.relkind IN ('r', 'p')
+  AND t.relname = '%s'
+  AND n.nspname = '%s'
+ORDER BY i.relname, x.ordinality`, esc(table), esc(schema))
+
+	data, _, err := h.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	parseBool := func(v interface{}) bool {
+		switch val := v.(type) {
+		case bool:
+			return val
+		case string:
+			s := strings.ToLower(strings.TrimSpace(val))
+			return s == "t" || s == "true" || s == "1" || s == "y" || s == "yes"
+		default:
+			s := strings.ToLower(strings.TrimSpace(fmt.Sprintf("%v", v)))
+			return s == "t" || s == "true" || s == "1" || s == "y" || s == "yes"
+		}
+	}
+
+	parseInt := func(v interface{}) int {
+		switch val := v.(type) {
+		case int:
+			return val
+		case int64:
+			return int(val)
+		case float64:
+			return int(val)
+		case string:
+			var n int
+			_, _ = fmt.Sscanf(strings.TrimSpace(val), "%d", &n)
+			return n
+		default:
+			var n int
+			_, _ = fmt.Sscanf(strings.TrimSpace(fmt.Sprintf("%v", v)), "%d", &n)
+			return n
+		}
+	}
+
+	var indexes []connection.IndexDefinition
+	for _, row := range data {
+		isUnique := false
+		if v, ok := row["is_unique"]; ok && v != nil {
+			isUnique = parseBool(v)
+		}
+
+		nonUnique := 1
+		if isUnique {
+			nonUnique = 0
+		}
+
+		seq := 0
+		if v, ok := row["seq_in_index"]; ok && v != nil {
+			seq = parseInt(v)
+		}
+
+		indexType := ""
+		if v, ok := row["index_type"]; ok && v != nil {
+			indexType = strings.ToUpper(fmt.Sprintf("%v", v))
+		}
+		if indexType == "" {
+			indexType = "BTREE"
+		}
+
+		idx := connection.IndexDefinition{
+			Name:       fmt.Sprintf("%v", row["index_name"]),
+			ColumnName: fmt.Sprintf("%v", row["column_name"]),
+			NonUnique:  nonUnique,
+			SeqInIndex: seq,
+			IndexType:  indexType,
+		}
+		indexes = append(indexes, idx)
+	}
+	return indexes, nil
+}
+
+func (h *HighGoDB) GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT
+	tc.constraint_name AS constraint_name,
+	kcu.column_name AS column_name,
+	ccu.table_schema AS foreign_table_schema,
+	ccu.table_name AS foreign_table_name,
+	ccu.column_name AS foreign_column_name
+FROM information_schema.table_constraints AS tc
+JOIN information_schema.key_column_usage AS kcu
+  ON tc.constraint_name = kcu.constraint_name
+  AND tc.table_schema = kcu.table_schema
+JOIN information_schema.constraint_column_usage AS ccu
+  ON ccu.constraint_name = tc.constraint_name
+  AND ccu.table_schema = tc.table_schema
+WHERE tc.constraint_type = 'FOREIGN KEY'
+  AND tc.table_name = '%s'
+  AND tc.table_schema = '%s'
+ORDER BY tc.constraint_name, kcu.ordinal_position`, esc(table), esc(schema))
+
+	data, _, err := h.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var fks []connection.ForeignKeyDefinition
+	for _, row := range data {
+		refSchema := ""
+		if v, ok := row["foreign_table_schema"]; ok && v != nil {
+			refSchema = fmt.Sprintf("%v", v)
+		}
+		refTable := fmt.Sprintf("%v", row["foreign_table_name"])
+		refTableName := refTable
+		if strings.TrimSpace(refSchema) != "" {
+			refTableName = fmt.Sprintf("%s.%s", refSchema, refTable)
+		}
+
+		fk := connection.ForeignKeyDefinition{
+			Name:           fmt.Sprintf("%v", row["constraint_name"]),
+			ColumnName:     fmt.Sprintf("%v", row["column_name"]),
+			RefTableName:   refTableName,
+			RefColumnName:  fmt.Sprintf("%v", row["foreign_column_name"]),
+			ConstraintName: fmt.Sprintf("%v", row["constraint_name"]),
+		}
+		fks = append(fks, fk)
+	}
+	return fks, nil
+}
+
+func (h *HighGoDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT trigger_name, action_timing, event_manipulation, action_statement
+FROM information_schema.triggers
+WHERE event_object_table = '%s'
+  AND event_object_schema = '%s'
+ORDER BY trigger_name, event_manipulation`, esc(table), esc(schema))
+
+	data, _, err := h.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var triggers []connection.TriggerDefinition
+	for _, row := range data {
+		trig := connection.TriggerDefinition{
+			Name:      fmt.Sprintf("%v", row["trigger_name"]),
+			Timing:    fmt.Sprintf("%v", row["action_timing"]),
+			Event:     fmt.Sprintf("%v", row["event_manipulation"]),
+			Statement: fmt.Sprintf("%v", row["action_statement"]),
+		}
+		triggers = append(triggers, trig)
+	}
+	return triggers, nil
+}
+
+func (h *HighGoDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
+	query := `
+SELECT table_schema, table_name, column_name, data_type
+FROM information_schema.columns
+WHERE table_schema NOT IN ('pg_catalog', 'information_schema')
+  AND table_schema NOT LIKE 'pg_%'
+ORDER BY table_schema, table_name, ordinal_position`
+
+	data, _, err := h.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var cols []connection.ColumnDefinitionWithTable
+	for _, row := range data {
+		schema := fmt.Sprintf("%v", row["table_schema"])
+		table := fmt.Sprintf("%v", row["table_name"])
+		tableName := table
+		if strings.TrimSpace(schema) != "" {
+			tableName = fmt.Sprintf("%s.%s", schema, table)
+		}
+
+		col := connection.ColumnDefinitionWithTable{
+			TableName: tableName,
+			Name:      fmt.Sprintf("%v", row["column_name"]),
+			Type:      fmt.Sprintf("%v", row["data_type"]),
+		}
+		cols = append(cols, col)
+	}
+	return cols, nil
+}
+
+func (h *HighGoDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
+	if h.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+
+	tx, err := h.conn.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	quoteIdent := func(name string) string {
+		n := strings.TrimSpace(name)
+		n = strings.Trim(n, "\"")
+		n = strings.ReplaceAll(n, "\"", "\"\"")
+		if n == "" {
+			return "\"\""
+		}
+		return `"` + n + `"`
+	}
+
+	schema := ""
+	table := strings.TrimSpace(tableName)
+	if parts := strings.SplitN(table, ".", 2); len(parts) == 2 {
+		schema = strings.TrimSpace(parts[0])
+		table = strings.TrimSpace(parts[1])
+	}
+
+	qualifiedTable := ""
+	if schema != "" {
+		qualifiedTable = fmt.Sprintf("%s.%s", quoteIdent(schema), quoteIdent(table))
+	} else {
+		qualifiedTable = quoteIdent(table)
+	}
+
+	// 1. Deletes
+	for _, pk := range changes.Deletes {
+		var wheres []string
+		var args []interface{}
+		idx := 0
+		for k, v := range pk {
+			idx++
+			wheres = append(wheres, fmt.Sprintf("%s = $%d", quoteIdent(k), idx))
+			args = append(args, v)
+		}
+		if len(wheres) == 0 {
+			continue
+		}
+		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)
+		}
+	}
+
+	// 2. Updates
+	for _, update := range changes.Updates {
+		var sets []string
+		var args []interface{}
+		idx := 0
+
+		for k, v := range update.Values {
+			idx++
+			sets = append(sets, fmt.Sprintf("%s = $%d", quoteIdent(k), idx))
+			args = append(args, v)
+		}
+
+		if len(sets) == 0 {
+			continue
+		}
+
+		var wheres []string
+		for k, v := range update.Keys {
+			idx++
+			wheres = append(wheres, fmt.Sprintf("%s = $%d", quoteIdent(k), idx))
+			args = append(args, v)
+		}
+
+		if len(wheres) == 0 {
+			return fmt.Errorf("update requires keys")
+		}
+
+		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
+		if _, err := tx.Exec(query, args...); err != nil {
+			return fmt.Errorf("update error: %v", err)
+		}
+	}
+
+	// 3. Inserts
+	for _, row := range changes.Inserts {
+		var cols []string
+		var placeholders []string
+		var args []interface{}
+		idx := 0
+
+		for k, v := range row {
+			idx++
+			cols = append(cols, quoteIdent(k))
+			placeholders = append(placeholders, fmt.Sprintf("$%d", idx))
+			args = append(args, v)
+		}
+
+		if len(cols) == 0 {
+			continue
+		}
+
+		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 tx.Commit()
+}

internal/db/mariadb_impl.go

@@ -0,0 +1,409 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+	"time"
+
+	"GoNavi-Wails/internal/connection"
+	"GoNavi-Wails/internal/logger"
+	"GoNavi-Wails/internal/ssh"
+	"GoNavi-Wails/internal/utils"
+
+	_ "github.com/go-sql-driver/mysql"
+)
+
+// MariaDB implements Database interface for MariaDB
+// MariaDB is MySQL-compatible, so we reuse the MySQL driver
+type MariaDB struct {
+	conn        *sql.DB
+	pingTimeout time.Duration
+}
+
+func (m *MariaDB) getDSN(config connection.ConnectionConfig) string {
+	database := config.Database
+	protocol := "tcp"
+	address := fmt.Sprintf("%s:%d", config.Host, config.Port)
+
+	if config.UseSSH {
+		netName, err := ssh.RegisterSSHNetwork(config.SSH)
+		if err == nil {
+			protocol = netName
+			address = fmt.Sprintf("%s:%d", config.Host, config.Port)
+		} else {
+			logger.Warnf("注册 SSH 网络失败，将尝试直连：地址=%s:%d 用户=%s，原因：%v", config.Host, config.Port, config.User, err)
+		}
+	}
+
+	timeout := getConnectTimeoutSeconds(config)
+
+	return fmt.Sprintf("%s:%s@%s(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds",
+		config.User, config.Password, protocol, address, database, timeout)
+}
+
+func (m *MariaDB) Connect(config connection.ConnectionConfig) error {
+	dsn := m.getDSN(config)
+	db, err := sql.Open("mysql", dsn)
+	if err != nil {
+		return fmt.Errorf("打开数据库连接失败：%w", err)
+	}
+	m.conn = db
+	m.pingTimeout = getConnectTimeout(config)
+
+	if err := m.Ping(); err != nil {
+		return fmt.Errorf("连接建立后验证失败：%w", err)
+	}
+	return nil
+}
+
+func (m *MariaDB) Close() error {
+	if m.conn != nil {
+		return m.conn.Close()
+	}
+	return nil
+}
+
+func (m *MariaDB) Ping() error {
+	if m.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+	timeout := m.pingTimeout
+	if timeout <= 0 {
+		timeout = 5 * time.Second
+	}
+	ctx, cancel := utils.ContextWithTimeout(timeout)
+	defer cancel()
+	return m.conn.PingContext(ctx)
+}
+
+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")
+	}
+
+	rows, err := m.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+
+	return scanRows(rows)
+}
+
+func (m *MariaDB) Query(query string) ([]map[string]interface{}, []string, error) {
+	if m.conn == nil {
+		return nil, nil, fmt.Errorf("connection not open")
+	}
+
+	rows, err := m.conn.Query(query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+	return scanRows(rows)
+}
+
+func (m *MariaDB) ExecContext(ctx context.Context, query string) (int64, error) {
+	if m.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := m.conn.ExecContext(ctx, query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (m *MariaDB) Exec(query string) (int64, error) {
+	if m.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := m.conn.Exec(query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (m *MariaDB) GetDatabases() ([]string, error) {
+	data, _, err := m.Query("SHOW DATABASES")
+	if err != nil {
+		return nil, err
+	}
+	var dbs []string
+	for _, row := range data {
+		if val, ok := row["Database"]; ok {
+			dbs = append(dbs, fmt.Sprintf("%v", val))
+		} else if val, ok := row["database"]; ok {
+			dbs = append(dbs, fmt.Sprintf("%v", val))
+		}
+	}
+	return dbs, nil
+}
+
+func (m *MariaDB) GetTables(dbName string) ([]string, error) {
+	query := "SHOW TABLES"
+	if dbName != "" {
+		query = fmt.Sprintf("SHOW TABLES FROM `%s`", dbName)
+	}
+
+	data, _, err := m.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var tables []string
+	for _, row := range data {
+		for _, v := range row {
+			tables = append(tables, fmt.Sprintf("%v", v))
+			break
+		}
+	}
+	return tables, nil
+}
+
+func (m *MariaDB) GetCreateStatement(dbName, tableName string) (string, error) {
+	query := fmt.Sprintf("SHOW CREATE TABLE `%s`.`%s`", dbName, tableName)
+	if dbName == "" {
+		query = fmt.Sprintf("SHOW CREATE TABLE `%s`", tableName)
+	}
+
+	data, _, err := m.Query(query)
+	if err != nil {
+		return "", err
+	}
+
+	if len(data) > 0 {
+		if val, ok := data[0]["Create Table"]; ok {
+			return fmt.Sprintf("%v", val), nil
+		}
+	}
+	return "", fmt.Errorf("create statement not found")
+}
+
+func (m *MariaDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
+	query := fmt.Sprintf("SHOW FULL COLUMNS FROM `%s`.`%s`", dbName, tableName)
+	if dbName == "" {
+		query = fmt.Sprintf("SHOW FULL COLUMNS FROM `%s`", tableName)
+	}
+
+	data, _, err := m.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var columns []connection.ColumnDefinition
+	for _, row := range data {
+		col := connection.ColumnDefinition{
+			Name:     fmt.Sprintf("%v", row["Field"]),
+			Type:     fmt.Sprintf("%v", row["Type"]),
+			Nullable: fmt.Sprintf("%v", row["Null"]),
+			Key:      fmt.Sprintf("%v", row["Key"]),
+			Extra:    fmt.Sprintf("%v", row["Extra"]),
+			Comment:  fmt.Sprintf("%v", row["Comment"]),
+		}
+
+		if row["Default"] != nil {
+			d := fmt.Sprintf("%v", row["Default"])
+			col.Default = &d
+		}
+
+		columns = append(columns, col)
+	}
+	return columns, nil
+}
+
+func (m *MariaDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
+	query := fmt.Sprintf("SHOW INDEX FROM `%s`.`%s`", dbName, tableName)
+	if dbName == "" {
+		query = fmt.Sprintf("SHOW INDEX FROM `%s`", tableName)
+	}
+
+	data, _, err := m.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var indexes []connection.IndexDefinition
+	for _, row := range data {
+		nonUnique := 0
+		if val, ok := row["Non_unique"]; ok {
+			if f, ok := val.(float64); ok {
+				nonUnique = int(f)
+			} else if i, ok := val.(int64); ok {
+				nonUnique = int(i)
+			}
+		}
+
+		seq := 0
+		if val, ok := row["Seq_in_index"]; ok {
+			if f, ok := val.(float64); ok {
+				seq = int(f)
+			} else if i, ok := val.(int64); ok {
+				seq = int(i)
+			}
+		}
+
+		idx := connection.IndexDefinition{
+			Name:       fmt.Sprintf("%v", row["Key_name"]),
+			ColumnName: fmt.Sprintf("%v", row["Column_name"]),
+			NonUnique:  nonUnique,
+			SeqInIndex: seq,
+			IndexType:  fmt.Sprintf("%v", row["Index_type"]),
+		}
+		indexes = append(indexes, idx)
+	}
+	return indexes, nil
+}
+
+func (m *MariaDB) GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error) {
+	query := fmt.Sprintf(`SELECT CONSTRAINT_NAME, COLUMN_NAME, REFERENCED_TABLE_NAME, REFERENCED_COLUMN_NAME
+              FROM information_schema.KEY_COLUMN_USAGE
+              WHERE TABLE_SCHEMA = '%s' AND TABLE_NAME = '%s' AND REFERENCED_TABLE_NAME IS NOT NULL`, dbName, tableName)
+
+	data, _, err := m.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var fks []connection.ForeignKeyDefinition
+	for _, row := range data {
+		fk := connection.ForeignKeyDefinition{
+			Name:           fmt.Sprintf("%v", row["CONSTRAINT_NAME"]),
+			ColumnName:     fmt.Sprintf("%v", row["COLUMN_NAME"]),
+			RefTableName:   fmt.Sprintf("%v", row["REFERENCED_TABLE_NAME"]),
+			RefColumnName:  fmt.Sprintf("%v", row["REFERENCED_COLUMN_NAME"]),
+			ConstraintName: fmt.Sprintf("%v", row["CONSTRAINT_NAME"]),
+		}
+		fks = append(fks, fk)
+	}
+	return fks, nil
+}
+
+func (m *MariaDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error) {
+	query := fmt.Sprintf("SHOW TRIGGERS FROM `%s` WHERE `Table` = '%s'", dbName, tableName)
+	data, _, err := m.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var triggers []connection.TriggerDefinition
+	for _, row := range data {
+		trig := connection.TriggerDefinition{
+			Name:      fmt.Sprintf("%v", row["Trigger"]),
+			Timing:    fmt.Sprintf("%v", row["Timing"]),
+			Event:     fmt.Sprintf("%v", row["Event"]),
+			Statement: fmt.Sprintf("%v", row["Statement"]),
+		}
+		triggers = append(triggers, trig)
+	}
+	return triggers, nil
+}
+
+func (m *MariaDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
+	if m.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+
+	tx, err := m.conn.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	// 1. Deletes
+	for _, pk := range changes.Deletes {
+		var wheres []string
+		var args []interface{}
+		for k, v := range pk {
+			wheres = append(wheres, fmt.Sprintf("`%s` = ?", k))
+			args = append(args, normalizeMySQLDateTimeValue(v))
+		}
+		if len(wheres) == 0 {
+			continue
+		}
+		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)
+		}
+	}
+
+	// 2. Updates
+	for _, update := range changes.Updates {
+		var sets []string
+		var args []interface{}
+
+		for k, v := range update.Values {
+			sets = append(sets, fmt.Sprintf("`%s` = ?", k))
+			args = append(args, normalizeMySQLDateTimeValue(v))
+		}
+
+		if len(sets) == 0 {
+			continue
+		}
+
+		var wheres []string
+		for k, v := range update.Keys {
+			wheres = append(wheres, fmt.Sprintf("`%s` = ?", k))
+			args = append(args, normalizeMySQLDateTimeValue(v))
+		}
+
+		if len(wheres) == 0 {
+			return fmt.Errorf("update requires keys")
+		}
+
+		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)
+		}
+	}
+
+	// 3. Inserts
+	for _, row := range changes.Inserts {
+		var cols []string
+		var placeholders []string
+		var args []interface{}
+
+		for k, v := range row {
+			cols = append(cols, fmt.Sprintf("`%s`", k))
+			placeholders = append(placeholders, "?")
+			args = append(args, normalizeMySQLDateTimeValue(v))
+		}
+
+		if len(cols) == 0 {
+			continue
+		}
+
+		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 tx.Commit()
+}
+
+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")
+	}
+
+	data, _, err := m.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var cols []connection.ColumnDefinitionWithTable
+	for _, row := range data {
+		col := connection.ColumnDefinitionWithTable{
+			TableName: fmt.Sprintf("%v", row["TABLE_NAME"]),
+			Name:      fmt.Sprintf("%v", row["COLUMN_NAME"]),
+			Type:      fmt.Sprintf("%v", row["COLUMN_TYPE"]),
+		}
+		cols = append(cols, col)
+	}
+	return cols, nil
+}

internal/db/mongodb_impl.go

@@ -0,0 +1,859 @@
+package db
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"net/url"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"GoNavi-Wails/internal/connection"
+	"GoNavi-Wails/internal/logger"
+	"GoNavi-Wails/internal/ssh"
+
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+	"go.mongodb.org/mongo-driver/v2/mongo/readpref"
+)
+
+type MongoDB struct {
+	client      *mongo.Client
+	database    string
+	pingTimeout time.Duration
+	forwarder   *ssh.LocalForwarder
+}
+
+const defaultMongoPort = 27017
+
+func normalizeMongoAddress(host string, port int) string {
+	h := strings.TrimSpace(host)
+	if h == "" {
+		h = "localhost"
+	}
+	p := port
+	if p <= 0 {
+		p = defaultMongoPort
+	}
+	return fmt.Sprintf("%s:%d", h, p)
+}
+
+func normalizeMongoSeed(raw string, defaultPort int, useSRV bool) (string, bool) {
+	host, port, ok := parseHostPortWithDefault(raw, defaultPort)
+	if !ok {
+		return "", false
+	}
+
+	if useSRV {
+		normalized := strings.TrimSpace(host)
+		if normalized == "" {
+			return "", false
+		}
+		return normalized, true
+	}
+
+	return normalizeMongoAddress(host, port), true
+}
+
+func collectMongoSeeds(config connection.ConnectionConfig) []string {
+	defaultPort := config.Port
+	if defaultPort <= 0 {
+		defaultPort = defaultMongoPort
+	}
+	useSRV := config.MongoSRV
+
+	candidates := make([]string, 0, len(config.Hosts)+1)
+	if len(config.Hosts) > 0 {
+		candidates = append(candidates, config.Hosts...)
+	} else {
+		if useSRV {
+			candidates = append(candidates, strings.TrimSpace(config.Host))
+		} else {
+			candidates = append(candidates, normalizeMongoAddress(config.Host, defaultPort))
+		}
+	}
+
+	result := make([]string, 0, len(candidates))
+	seen := make(map[string]struct{}, len(candidates))
+	for _, entry := range candidates {
+		normalized, ok := normalizeMongoSeed(entry, defaultPort, useSRV)
+		if !ok {
+			continue
+		}
+		if _, exists := seen[normalized]; exists {
+			continue
+		}
+		seen[normalized] = struct{}{}
+		result = append(result, normalized)
+	}
+
+	return result
+}
+
+func applyMongoURI(config connection.ConnectionConfig) connection.ConnectionConfig {
+	uriText := strings.TrimSpace(config.URI)
+	if uriText == "" {
+		return config
+	}
+	lowerURI := strings.ToLower(uriText)
+	if strings.HasPrefix(lowerURI, "mongodb+srv://") {
+		config.MongoSRV = true
+	}
+	if !strings.HasPrefix(lowerURI, "mongodb://") && !strings.HasPrefix(lowerURI, "mongodb+srv://") {
+		return config
+	}
+
+	parsed, err := url.Parse(uriText)
+	if err != nil {
+		return config
+	}
+
+	if parsed.User != nil {
+		if config.User == "" {
+			config.User = parsed.User.Username()
+		}
+		if pass, ok := parsed.User.Password(); ok && config.Password == "" {
+			config.Password = pass
+		}
+	}
+
+	if dbName := strings.TrimPrefix(parsed.Path, "/"); dbName != "" && config.Database == "" {
+		config.Database = dbName
+	}
+
+	defaultPort := config.Port
+	if defaultPort <= 0 {
+		defaultPort = defaultMongoPort
+	}
+	hostsFromURI := make([]string, 0, 4)
+	hostText := strings.TrimSpace(parsed.Host)
+	if hostText != "" {
+		for _, entry := range strings.Split(hostText, ",") {
+			normalized, ok := normalizeMongoSeed(entry, defaultPort, config.MongoSRV)
+			if ok {
+				hostsFromURI = append(hostsFromURI, normalized)
+			}
+		}
+	}
+
+	if len(config.Hosts) == 0 && len(hostsFromURI) > 0 {
+		config.Hosts = hostsFromURI
+	}
+	if strings.TrimSpace(config.Host) == "" && len(hostsFromURI) > 0 {
+		host, port, ok := parseHostPortWithDefault(hostsFromURI[0], defaultPort)
+		if ok {
+			config.Host = host
+			config.Port = port
+		}
+	}
+
+	query := parsed.Query()
+	if config.AuthSource == "" {
+		config.AuthSource = strings.TrimSpace(query.Get("authSource"))
+	}
+	if config.ReadPreference == "" {
+		config.ReadPreference = strings.TrimSpace(query.Get("readPreference"))
+	}
+	if config.ReplicaSet == "" {
+		config.ReplicaSet = strings.TrimSpace(query.Get("replicaSet"))
+	}
+	if config.MongoAuthMechanism == "" {
+		config.MongoAuthMechanism = strings.TrimSpace(query.Get("authMechanism"))
+	}
+	if config.Topology == "" {
+		if len(config.Hosts) > 1 || strings.TrimSpace(config.ReplicaSet) != "" {
+			config.Topology = "replica"
+		} else {
+			config.Topology = "single"
+		}
+	}
+
+	return config
+}
+
+func (m *MongoDB) getURI(config connection.ConnectionConfig) string {
+	if strings.TrimSpace(config.URI) != "" {
+		return strings.TrimSpace(config.URI)
+	}
+
+	seeds := collectMongoSeeds(config)
+	if len(seeds) == 0 {
+		if config.MongoSRV {
+			seed := strings.TrimSpace(config.Host)
+			if seed == "" {
+				seed = "localhost"
+			}
+			seeds = append(seeds, seed)
+		} else {
+			seeds = append(seeds, normalizeMongoAddress(config.Host, config.Port))
+		}
+	}
+
+	scheme := "mongodb"
+	if config.MongoSRV {
+		scheme = "mongodb+srv"
+	}
+	hostText := strings.Join(seeds, ",")
+	uri := fmt.Sprintf("%s://%s", scheme, hostText)
+
+	if config.User != "" {
+		encodedUser := url.PathEscape(config.User)
+		if config.Password != "" {
+			encodedPass := url.PathEscape(config.Password)
+			uri = fmt.Sprintf("%s://%s:%s@%s", scheme, encodedUser, encodedPass, hostText)
+		} else {
+			uri = fmt.Sprintf("%s://%s@%s", scheme, encodedUser, hostText)
+		}
+	}
+
+	path := "/"
+	if strings.TrimSpace(config.Database) != "" {
+		path = "/" + url.PathEscape(strings.TrimSpace(config.Database))
+	}
+	uri += path
+
+	params := url.Values{}
+	timeout := getConnectTimeoutSeconds(config)
+	params.Set("connectTimeoutMS", strconv.Itoa(timeout*1000))
+	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"
+	}
+	params.Set("authSource", authSource)
+
+	if replicaSet := strings.TrimSpace(config.ReplicaSet); replicaSet != "" {
+		params.Set("replicaSet", replicaSet)
+	}
+	if readPreference := strings.TrimSpace(config.ReadPreference); readPreference != "" {
+		params.Set("readPreference", readPreference)
+	}
+	if authMechanism := strings.TrimSpace(config.MongoAuthMechanism); authMechanism != "" {
+		params.Set("authMechanism", authMechanism)
+	}
+
+	if encoded := params.Encode(); encoded != "" {
+		uri += "?" + encoded
+	}
+
+	return uri
+}
+
+func buildMongoAuthAttempts(config connection.ConnectionConfig) []connection.ConnectionConfig {
+	attempts := []connection.ConnectionConfig{config}
+	replicaUser := strings.TrimSpace(config.MongoReplicaUser)
+	if replicaUser == "" {
+		return attempts
+	}
+	if replicaUser == strings.TrimSpace(config.User) && config.MongoReplicaPassword == config.Password {
+		return attempts
+	}
+
+	replicaConfig := config
+	replicaConfig.URI = ""
+	replicaConfig.User = replicaUser
+	replicaConfig.Password = config.MongoReplicaPassword
+	attempts = append(attempts, replicaConfig)
+	return attempts
+}
+
+func (m *MongoDB) Connect(config connection.ConnectionConfig) error {
+	runConfig := applyMongoURI(config)
+	connectConfig := runConfig
+
+	if runConfig.UseSSH && runConfig.MongoSRV {
+		return fmt.Errorf("MongoDB SRV 记录模式暂不支持 SSH 隧道")
+	}
+
+	if runConfig.UseSSH {
+		seeds := collectMongoSeeds(runConfig)
+		if len(seeds) == 0 {
+			seeds = append(seeds, normalizeMongoAddress(runConfig.Host, runConfig.Port))
+		}
+		targetHost, targetPort, ok := parseHostPortWithDefault(seeds[0], defaultMongoPort)
+		if !ok {
+			return fmt.Errorf("MongoDB 连接失败：无效地址 %s", seeds[0])
+		}
+
+		logger.Infof("MongoDB 使用 SSH 连接：地址=%s:%d", targetHost, targetPort)
+
+		forwarder, err := ssh.GetOrCreateLocalForwarder(runConfig.SSH, targetHost, targetPort)
+		if err != nil {
+			return fmt.Errorf("创建 SSH 隧道失败：%w", err)
+		}
+		m.forwarder = forwarder
+
+		host, portStr, err := net.SplitHostPort(forwarder.LocalAddr)
+		if err != nil {
+			return fmt.Errorf("解析本地转发地址失败：%w", err)
+		}
+
+		port, err := strconv.Atoi(portStr)
+		if err != nil {
+			return fmt.Errorf("解析本地端口失败：%w", err)
+		}
+
+		localConfig := runConfig
+		localConfig.Host = host
+		localConfig.Port = port
+		localConfig.UseSSH = false
+		localConfig.URI = ""
+		localConfig.Hosts = []string{normalizeMongoAddress(host, port)}
+		connectConfig = localConfig
+		logger.Infof("MongoDB 通过本地端口转发连接：%s -> %s:%d", forwarder.LocalAddr, targetHost, targetPort)
+	}
+
+	m.pingTimeout = getConnectTimeout(connectConfig)
+	m.database = connectConfig.Database
+	if m.database == "" {
+		m.database = "admin"
+	}
+
+	attemptConfigs := buildMongoAuthAttempts(connectConfig)
+	var errorDetails []string
+	for index, attemptConfig := range attemptConfigs {
+		authLabel := "主库凭据"
+		if index > 0 {
+			authLabel = "从库凭据"
+		}
+
+		uri := m.getURI(attemptConfig)
+		clientOpts := options.Client().ApplyURI(uri)
+		client, err := mongo.Connect(clientOpts)
+		if err != nil {
+			errorDetails = append(errorDetails, fmt.Sprintf("%s连接失败: %v", authLabel, err))
+			continue
+		}
+
+		m.client = client
+		if err := m.Ping(); err != nil {
+			ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+			_ = client.Disconnect(ctx)
+			cancel()
+			m.client = nil
+			errorDetails = append(errorDetails, fmt.Sprintf("%s验证失败: %v", authLabel, err))
+			continue
+		}
+		return nil
+	}
+
+	if len(errorDetails) > 0 {
+		return fmt.Errorf("MongoDB 连接失败：%s", strings.Join(errorDetails, "；"))
+	}
+
+	return fmt.Errorf("MongoDB 连接失败：无可用连接方案")
+}
+
+func (m *MongoDB) Close() error {
+	if m.forwarder != nil {
+		if err := m.forwarder.Close(); err != nil {
+			logger.Warnf("关闭 MongoDB SSH 端口转发失败：%v", err)
+		}
+		m.forwarder = nil
+	}
+
+	if m.client != nil {
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		return m.client.Disconnect(ctx)
+	}
+	return nil
+}
+
+func (m *MongoDB) Ping() error {
+	if m.client == nil {
+		return fmt.Errorf("connection not open")
+	}
+	timeout := m.pingTimeout
+	if timeout <= 0 {
+		timeout = 5 * time.Second
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	return m.client.Ping(ctx, readpref.Primary())
+}
+
+func asMongoStringList(raw interface{}) []string {
+	values, ok := raw.(bson.A)
+	if !ok {
+		return nil
+	}
+	result := make([]string, 0, len(values))
+	for _, entry := range values {
+		text := strings.TrimSpace(fmt.Sprintf("%v", entry))
+		if text != "" {
+			result = append(result, text)
+		}
+	}
+	return result
+}
+
+func asMongoString(raw interface{}) string {
+	if raw == nil {
+		return ""
+	}
+	if value, ok := raw.(string); ok {
+		return strings.TrimSpace(value)
+	}
+	return strings.TrimSpace(fmt.Sprintf("%v", raw))
+}
+
+func asMongoInt(raw interface{}) int {
+	switch value := raw.(type) {
+	case int:
+		return value
+	case int32:
+		return int(value)
+	case int64:
+		return int(value)
+	case float32:
+		return int(value)
+	case float64:
+		return int(value)
+	default:
+		return 0
+	}
+}
+
+func asMongoBool(raw interface{}) bool {
+	switch value := raw.(type) {
+	case bool:
+		return value
+	case int:
+		return value != 0
+	case int32:
+		return value != 0
+	case int64:
+		return value != 0
+	case float32:
+		return value != 0
+	case float64:
+		return value != 0
+	default:
+		return false
+	}
+}
+
+func mongoStateByCode(code int) string {
+	switch code {
+	case 1:
+		return "PRIMARY"
+	case 2:
+		return "SECONDARY"
+	case 3:
+		return "RECOVERING"
+	case 5:
+		return "STARTUP2"
+	case 6:
+		return "UNKNOWN"
+	case 7:
+		return "ARBITER"
+	case 8:
+		return "DOWN"
+	case 9:
+		return "ROLLBACK"
+	case 10:
+		return "REMOVED"
+	default:
+		return "UNKNOWN"
+	}
+}
+
+func normalizeMongoStateLabel(state string, stateCode int) string {
+	normalized := strings.ToUpper(strings.TrimSpace(state))
+	if normalized != "" {
+		return normalized
+	}
+	return mongoStateByCode(stateCode)
+}
+
+func buildMembersFromReplStatus(raw bson.M) []connection.MongoMemberInfo {
+	items, ok := raw["members"].(bson.A)
+	if !ok {
+		return nil
+	}
+
+	members := make([]connection.MongoMemberInfo, 0, len(items))
+	for _, entry := range items {
+		member, ok := entry.(bson.M)
+		if !ok {
+			continue
+		}
+		host := asMongoString(member["name"])
+		if host == "" {
+			continue
+		}
+		stateCode := asMongoInt(member["state"])
+		state := normalizeMongoStateLabel(asMongoString(member["stateStr"]), stateCode)
+		members = append(members, connection.MongoMemberInfo{
+			Host:      host,
+			Role:      state,
+			State:     state,
+			StateCode: stateCode,
+			Healthy:   asMongoInt(member["health"]) > 0 || asMongoBool(member["health"]),
+			IsSelf:    asMongoBool(member["self"]),
+		})
+	}
+
+	sort.Slice(members, func(i, j int) bool {
+		return members[i].Host < members[j].Host
+	})
+	return members
+}
+
+func buildMembersFromHello(raw bson.M) []connection.MongoMemberInfo {
+	hosts := asMongoStringList(raw["hosts"])
+	if len(hosts) == 0 {
+		return nil
+	}
+	primary := asMongoString(raw["primary"])
+	selfHost := asMongoString(raw["me"])
+	passiveSet := make(map[string]struct{})
+	for _, host := range asMongoStringList(raw["passives"]) {
+		passiveSet[host] = struct{}{}
+	}
+	arbiterSet := make(map[string]struct{})
+	for _, host := range asMongoStringList(raw["arbiters"]) {
+		arbiterSet[host] = struct{}{}
+	}
+
+	members := make([]connection.MongoMemberInfo, 0, len(hosts))
+	for _, host := range hosts {
+		state := "SECONDARY"
+		stateCode := 2
+		if host == primary {
+			state = "PRIMARY"
+			stateCode = 1
+		} else if _, ok := arbiterSet[host]; ok {
+			state = "ARBITER"
+			stateCode = 7
+		} else if _, ok := passiveSet[host]; ok {
+			state = "PASSIVE"
+			stateCode = 6
+		}
+		members = append(members, connection.MongoMemberInfo{
+			Host:      host,
+			Role:      state,
+			State:     state,
+			StateCode: stateCode,
+			Healthy:   true,
+			IsSelf:    host == selfHost,
+		})
+	}
+
+	sort.Slice(members, func(i, j int) bool {
+		return members[i].Host < members[j].Host
+	})
+	return members
+}
+
+func (m *MongoDB) DiscoverMembers() (string, []connection.MongoMemberInfo, error) {
+	if m.client == nil {
+		return "", nil, fmt.Errorf("connection not open")
+	}
+
+	timeout := m.pingTimeout
+	if timeout <= 0 {
+		timeout = 10 * time.Second
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	adminDB := m.client.Database("admin")
+
+	var replStatus bson.M
+	replErr := adminDB.RunCommand(ctx, bson.D{{Key: "replSetGetStatus", Value: 1}}).Decode(&replStatus)
+	if replErr == nil {
+		replicaSet := asMongoString(replStatus["set"])
+		members := buildMembersFromReplStatus(replStatus)
+		if len(members) > 0 {
+			return replicaSet, members, nil
+		}
+	}
+
+	var helloResult bson.M
+	helloErr := adminDB.RunCommand(ctx, bson.D{{Key: "hello", Value: 1}}).Decode(&helloResult)
+	if helloErr != nil {
+		if err := adminDB.RunCommand(ctx, bson.D{{Key: "isMaster", Value: 1}}).Decode(&helloResult); err != nil {
+			if replErr != nil {
+				return "", nil, fmt.Errorf("成员发现失败：replSetGetStatus=%v；hello=%v", replErr, err)
+			}
+			return "", nil, fmt.Errorf("成员发现失败：hello=%w", err)
+		}
+	}
+
+	replicaSet := asMongoString(helloResult["setName"])
+	members := buildMembersFromHello(helloResult)
+	if len(members) == 0 {
+		if replErr != nil {
+			return replicaSet, nil, fmt.Errorf("未获取到成员信息：replSetGetStatus=%v", replErr)
+		}
+		return replicaSet, nil, fmt.Errorf("未获取到成员信息")
+	}
+	return replicaSet, members, nil
+}
+
+// Query executes a MongoDB command and returns results
+// Supports JSON format commands like: {"find": "collection", "filter": {}}
+func (m *MongoDB) Query(query string) ([]map[string]interface{}, []string, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+	return m.queryWithContext(ctx, query)
+}
+
+// QueryContext executes a MongoDB command with the given context for timeout control
+func (m *MongoDB) QueryContext(ctx context.Context, query string) ([]map[string]interface{}, []string, error) {
+	return m.queryWithContext(ctx, query)
+}
+
+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")
+	}
+
+	query = strings.TrimSpace(query)
+	if query == "" {
+		return nil, nil, fmt.Errorf("empty query")
+	}
+
+	// Parse JSON command
+	var cmd bson.D
+	if err := bson.UnmarshalExtJSON([]byte(query), true, &cmd); err != nil {
+		return nil, nil, fmt.Errorf("invalid JSON command: %w", err)
+	}
+
+	db := m.client.Database(m.database)
+	var result bson.M
+	if err := db.RunCommand(ctx, cmd).Decode(&result); err != nil {
+		return nil, nil, err
+	}
+
+	// Convert result to standard format
+	data := []map[string]interface{}{{"result": result}}
+	columns := []string{"result"}
+
+	// If result contains cursor with documents, extract them
+	if cursor, ok := result["cursor"].(bson.M); ok {
+		if batch, ok := cursor["firstBatch"].(bson.A); ok {
+			data = make([]map[string]interface{}, 0, len(batch))
+			columnSet := make(map[string]bool)
+			for _, doc := range batch {
+				if docMap, ok := doc.(bson.M); ok {
+					row := make(map[string]interface{})
+					for k, v := range docMap {
+						row[k] = v
+						columnSet[k] = true
+					}
+					data = append(data, row)
+				}
+			}
+			columns = make([]string, 0, len(columnSet))
+			for k := range columnSet {
+				columns = append(columns, k)
+			}
+		}
+	}
+
+	return data, columns, nil
+}
+
+func (m *MongoDB) Exec(query string) (int64, error) {
+	_, _, err := m.Query(query)
+	if err != nil {
+		return 0, err
+	}
+	return 1, nil
+}
+
+// ExecContext executes a MongoDB command with the given context for timeout control
+func (m *MongoDB) ExecContext(ctx context.Context, query string) (int64, error) {
+	_, _, err := m.QueryContext(ctx, query)
+	if err != nil {
+		return 0, err
+	}
+	return 1, nil
+}
+
+func (m *MongoDB) GetDatabases() ([]string, error) {
+	if m.client == nil {
+		return nil, fmt.Errorf("connection not open")
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	dbs, err := m.client.ListDatabaseNames(ctx, bson.M{})
+	if err != nil {
+		return nil, err
+	}
+	return dbs, nil
+}
+
+func (m *MongoDB) GetTables(dbName string) ([]string, error) {
+	if m.client == nil {
+		return nil, fmt.Errorf("connection not open")
+	}
+
+	targetDB := dbName
+	if targetDB == "" {
+		targetDB = m.database
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	collections, err := m.client.Database(targetDB).ListCollectionNames(ctx, bson.M{})
+	if err != nil {
+		return nil, err
+	}
+	return collections, nil
+}
+
+func (m *MongoDB) GetCreateStatement(dbName, tableName string) (string, error) {
+	return fmt.Sprintf("// MongoDB collection: %s.%s\n// MongoDB is schemaless - no CREATE statement available", dbName, tableName), nil
+}
+
+// GetColumns returns empty for MongoDB (schemaless)
+func (m *MongoDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
+	// MongoDB is schemaless, return empty
+	return []connection.ColumnDefinition{}, nil
+}
+
+// GetAllColumns returns empty for MongoDB (schemaless)
+func (m *MongoDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
+	return []connection.ColumnDefinitionWithTable{}, nil
+}
+
+// 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")
+	}
+
+	targetDB := dbName
+	if targetDB == "" {
+		targetDB = m.database
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	collection := m.client.Database(targetDB).Collection(tableName)
+	cursor, err := collection.Indexes().List(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+
+	var indexes []connection.IndexDefinition
+	for cursor.Next(ctx) {
+		var idx bson.M
+		if err := cursor.Decode(&idx); err != nil {
+			continue
+		}
+
+		name := fmt.Sprintf("%v", idx["name"])
+		unique := false
+		if u, ok := idx["unique"].(bool); ok {
+			unique = u
+		}
+
+		// Extract key fields
+		if key, ok := idx["key"].(bson.M); ok {
+			seq := 1
+			for field := range key {
+				nonUnique := 1
+				if unique {
+					nonUnique = 0
+				}
+				indexes = append(indexes, connection.IndexDefinition{
+					Name:       name,
+					ColumnName: field,
+					NonUnique:  nonUnique,
+					SeqInIndex: seq,
+					IndexType:  "BTREE",
+				})
+				seq++
+			}
+		}
+	}
+
+	return indexes, nil
+}
+
+func (m *MongoDB) GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error) {
+	// MongoDB doesn't have foreign keys
+	return []connection.ForeignKeyDefinition{}, nil
+}
+
+func (m *MongoDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error) {
+	// MongoDB doesn't have triggers in the traditional sense
+	return []connection.TriggerDefinition{}, nil
+}
+
+// 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")
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	collection := m.client.Database(m.database).Collection(tableName)
+
+	// Process deletes
+	for _, pk := range changes.Deletes {
+		filter := bson.M{}
+		for k, v := range pk {
+			filter[k] = v
+		}
+		if len(filter) > 0 {
+			if _, err := collection.DeleteOne(ctx, filter); err != nil {
+				return fmt.Errorf("delete error: %v", err)
+			}
+		}
+	}
+
+	// Process updates
+	for _, update := range changes.Updates {
+		filter := bson.M{}
+		for k, v := range update.Keys {
+			filter[k] = v
+		}
+		if len(filter) == 0 {
+			return fmt.Errorf("update requires keys")
+		}
+
+		updateDoc := bson.M{"$set": bson.M{}}
+		for k, v := range update.Values {
+			updateDoc["$set"].(bson.M)[k] = v
+		}
+
+		if _, err := collection.UpdateOne(ctx, filter, updateDoc); err != nil {
+			return fmt.Errorf("update error: %v", err)
+		}
+	}
+
+	// Process inserts
+	for _, row := range changes.Inserts {
+		doc := bson.M{}
+		for k, v := range row {
+			doc[k] = v
+		}
+		if len(doc) > 0 {
+			if _, err := collection.InsertOne(ctx, doc); err != nil {
+				return fmt.Errorf("insert error: %v", err)
+			}
+		}
+	}
+
+	return nil
+}

internal/db/mysql_impl.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"net/url"
+	"strconv"
 	"strings"
 	"time"
 
@@ -20,16 +22,161 @@ type MySQLDB struct {
 	pingTimeout time.Duration
 }
 
+const defaultMySQLPort = 3306
+
+func parseHostPortWithDefault(raw string, defaultPort int) (string, int, bool) {
+	text := strings.TrimSpace(raw)
+	if text == "" {
+		return "", 0, false
+	}
+
+	if strings.HasPrefix(text, "[") {
+		end := strings.Index(text, "]")
+		if end < 0 {
+			return text, defaultPort, true
+		}
+		host := text[1:end]
+		portText := strings.TrimSpace(text[end+1:])
+		if strings.HasPrefix(portText, ":") {
+			if p, err := strconv.Atoi(strings.TrimSpace(strings.TrimPrefix(portText, ":"))); err == nil && p > 0 {
+				return host, p, true
+			}
+		}
+		return host, defaultPort, true
+	}
+
+	lastColon := strings.LastIndex(text, ":")
+	if lastColon > 0 && strings.Count(text, ":") == 1 {
+		host := strings.TrimSpace(text[:lastColon])
+		portText := strings.TrimSpace(text[lastColon+1:])
+		if host != "" {
+			if p, err := strconv.Atoi(portText); err == nil && p > 0 {
+				return host, p, true
+			}
+			return host, defaultPort, true
+		}
+	}
+
+	return text, defaultPort, true
+}
+
+func normalizeMySQLAddress(host string, port int) string {
+	h := strings.TrimSpace(host)
+	if h == "" {
+		h = "localhost"
+	}
+	p := port
+	if p <= 0 {
+		p = defaultMySQLPort
+	}
+	return fmt.Sprintf("%s:%d", h, p)
+}
+
+func applyMySQLURI(config connection.ConnectionConfig) connection.ConnectionConfig {
+	uriText := strings.TrimSpace(config.URI)
+	if uriText == "" {
+		return config
+	}
+	if !strings.HasPrefix(strings.ToLower(uriText), "mysql://") {
+		return config
+	}
+
+	parsed, err := url.Parse(uriText)
+	if err != nil {
+		return config
+	}
+
+	if parsed.User != nil {
+		if config.User == "" {
+			config.User = parsed.User.Username()
+		}
+		if pass, ok := parsed.User.Password(); ok && config.Password == "" {
+			config.Password = pass
+		}
+	}
+
+	if dbName := strings.TrimPrefix(parsed.Path, "/"); dbName != "" && config.Database == "" {
+		config.Database = dbName
+	}
+
+	defaultPort := config.Port
+	if defaultPort <= 0 {
+		defaultPort = defaultMySQLPort
+	}
+
+	hostsFromURI := make([]string, 0, 4)
+	hostText := strings.TrimSpace(parsed.Host)
+	if hostText != "" {
+		for _, entry := range strings.Split(hostText, ",") {
+			host, port, ok := parseHostPortWithDefault(entry, defaultPort)
+			if !ok {
+				continue
+			}
+			hostsFromURI = append(hostsFromURI, normalizeMySQLAddress(host, port))
+		}
+	}
+
+	if len(config.Hosts) == 0 && len(hostsFromURI) > 0 {
+		config.Hosts = hostsFromURI
+	}
+	if strings.TrimSpace(config.Host) == "" && len(hostsFromURI) > 0 {
+		host, port, ok := parseHostPortWithDefault(hostsFromURI[0], defaultPort)
+		if ok {
+			config.Host = host
+			config.Port = port
+		}
+	}
+
+	if config.Topology == "" {
+		topology := strings.TrimSpace(parsed.Query().Get("topology"))
+		if topology != "" {
+			config.Topology = strings.ToLower(topology)
+		}
+	}
+
+	return config
+}
+
+func collectMySQLAddresses(config connection.ConnectionConfig) []string {
+	defaultPort := config.Port
+	if defaultPort <= 0 {
+		defaultPort = defaultMySQLPort
+	}
+
+	candidates := make([]string, 0, len(config.Hosts)+1)
+	if len(config.Hosts) > 0 {
+		candidates = append(candidates, config.Hosts...)
+	} else {
+		candidates = append(candidates, normalizeMySQLAddress(config.Host, defaultPort))
+	}
+
+	result := make([]string, 0, len(candidates))
+	seen := make(map[string]struct{}, len(candidates))
+	for _, entry := range candidates {
+		host, port, ok := parseHostPortWithDefault(entry, defaultPort)
+		if !ok {
+			continue
+		}
+		normalized := normalizeMySQLAddress(host, port)
+		if _, exists := seen[normalized]; exists {
+			continue
+		}
+		seen[normalized] = struct{}{}
+		result = append(result, normalized)
+	}
+	return result
+}
+
 func (m *MySQLDB) getDSN(config connection.ConnectionConfig) string {
 	database := config.Database
 	protocol := "tcp"
-	address := fmt.Sprintf("%s:%d", config.Host, config.Port)
+	address := normalizeMySQLAddress(config.Host, config.Port)
 
 	if config.UseSSH {
 		netName, err := ssh.RegisterSSHNetwork(config.SSH)
 		if err == nil {
 			protocol = netName
-			address = fmt.Sprintf("%s:%d", config.Host, config.Port)
+			address = normalizeMySQLAddress(config.Host, config.Port)
 		} else {
 			logger.Warnf("注册 SSH 网络失败，将尝试直连：地址=%s:%d 用户=%s，原因：%v", config.Host, config.Port, config.User, err)
 		}
@@ -41,20 +188,67 @@ func (m *MySQLDB) getDSN(config connection.ConnectionConfig) string {
 		config.User, config.Password, protocol, address, database, timeout)
 }
 
-func (m *MySQLDB) Connect(config connection.ConnectionConfig) error {
-	dsn := m.getDSN(config)
-	db, err := sql.Open("mysql", dsn)
-	if err != nil {
-		return fmt.Errorf("打开数据库连接失败：%w", err)
-	}
-	m.conn = db
-	m.pingTimeout = getConnectTimeout(config)
+func resolveMySQLCredential(config connection.ConnectionConfig, addressIndex int) (string, string) {
+	primaryUser := strings.TrimSpace(config.User)
+	primaryPassword := config.Password
+	replicaUser := strings.TrimSpace(config.MySQLReplicaUser)
+	replicaPassword := config.MySQLReplicaPassword
 
-	// Force verification
-	if err := m.Ping(); err != nil {
-		return fmt.Errorf("连接建立后验证失败：%w", err)
+	if addressIndex > 0 && replicaUser != "" {
+		return replicaUser, replicaPassword
 	}
-	return nil
+
+	if primaryUser == "" && replicaUser != "" {
+		return replicaUser, replicaPassword
+	}
+
+	return config.User, primaryPassword
+}
+
+func (m *MySQLDB) Connect(config connection.ConnectionConfig) error {
+	runConfig := applyMySQLURI(config)
+	addresses := collectMySQLAddresses(runConfig)
+	if len(addresses) == 0 {
+		return fmt.Errorf("连接建立后验证失败：未找到可用的 MySQL 地址")
+	}
+
+	var errorDetails []string
+	for index, address := range addresses {
+		candidateConfig := runConfig
+		host, port, ok := parseHostPortWithDefault(address, defaultMySQLPort)
+		if !ok {
+			continue
+		}
+		candidateConfig.Host = host
+		candidateConfig.Port = port
+		candidateConfig.User, candidateConfig.Password = resolveMySQLCredential(runConfig, index)
+
+		dsn := m.getDSN(candidateConfig)
+		db, err := sql.Open("mysql", dsn)
+		if err != nil {
+			errorDetails = append(errorDetails, fmt.Sprintf("%s 打开失败: %v", address, err))
+			continue
+		}
+
+		timeout := getConnectTimeout(candidateConfig)
+		ctx, cancel := utils.ContextWithTimeout(timeout)
+		pingErr := db.PingContext(ctx)
+		cancel()
+		if pingErr != nil {
+			_ = db.Close()
+			errorDetails = append(errorDetails, fmt.Sprintf("%s 验证失败: %v", address, pingErr))
+			continue
+		}
+
+		m.conn = db
+		m.pingTimeout = timeout
+		return nil
+	}
+
+	if len(errorDetails) == 0 {
+		return fmt.Errorf("连接建立后验证失败：未找到可用的 MySQL 地址")
+	}
+	return fmt.Errorf("连接建立后验证失败：%s", strings.Join(errorDetails, "；"))
 }
 
 func (m *MySQLDB) Close() error {

internal/db/sqlserver_impl.go

@@ -0,0 +1,635 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"net"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"GoNavi-Wails/internal/connection"
+	"GoNavi-Wails/internal/logger"
+	"GoNavi-Wails/internal/ssh"
+	"GoNavi-Wails/internal/utils"
+
+	_ "github.com/microsoft/go-mssqldb"
+)
+
+type SqlServerDB struct {
+	conn        *sql.DB
+	pingTimeout time.Duration
+	forwarder   *ssh.LocalForwarder
+}
+
+// quoteBracket escapes ] in identifiers for safe use in SQL Server [bracket] notation
+func quoteBracket(name string) string {
+	return strings.ReplaceAll(name, "]", "]]")
+}
+
+func (s *SqlServerDB) getDSN(config connection.ConnectionConfig) string {
+	// sqlserver://user:password@host:port?database=dbname
+	dbname := config.Database
+	if dbname == "" {
+		dbname = "master"
+	}
+
+	u := &url.URL{
+		Scheme: "sqlserver",
+		Host:   net.JoinHostPort(config.Host, strconv.Itoa(config.Port)),
+	}
+	u.User = url.UserPassword(config.User, config.Password)
+
+	q := url.Values{}
+	q.Set("database", dbname)
+	q.Set("connection timeout", strconv.Itoa(getConnectTimeoutSeconds(config)))
+	q.Set("encrypt", "disable")
+	q.Set("TrustServerCertificate", "true")
+	u.RawQuery = q.Encode()
+
+	return u.String()
+}
+
+func (s *SqlServerDB) Connect(config connection.ConnectionConfig) error {
+	var dsn string
+
+	if config.UseSSH {
+		logger.Infof("SQL Server 使用 SSH 连接：地址=%s:%d 用户=%s", config.Host, config.Port, config.User)
+
+		forwarder, err := ssh.GetOrCreateLocalForwarder(config.SSH, config.Host, config.Port)
+		if err != nil {
+			return fmt.Errorf("创建 SSH 隧道失败：%w", err)
+		}
+		s.forwarder = forwarder
+
+		host, portStr, err := net.SplitHostPort(forwarder.LocalAddr)
+		if err != nil {
+			return fmt.Errorf("解析本地转发地址失败：%w", err)
+		}
+
+		port, err := strconv.Atoi(portStr)
+		if err != nil {
+			return fmt.Errorf("解析本地端口失败：%w", err)
+		}
+
+		localConfig := config
+		localConfig.Host = host
+		localConfig.Port = port
+		localConfig.UseSSH = false
+
+		dsn = s.getDSN(localConfig)
+		logger.Infof("SQL Server 通过本地端口转发连接：%s -> %s:%d", forwarder.LocalAddr, config.Host, config.Port)
+	} else {
+		dsn = s.getDSN(config)
+	}
+
+	db, err := sql.Open("sqlserver", dsn)
+	if err != nil {
+		return fmt.Errorf("打开数据库连接失败：%w", err)
+	}
+	s.conn = db
+	s.pingTimeout = getConnectTimeout(config)
+
+	if err := s.Ping(); err != nil {
+		return fmt.Errorf("连接建立后验证失败：%w", err)
+	}
+	return nil
+}
+
+func (s *SqlServerDB) Close() error {
+	if s.forwarder != nil {
+		if err := s.forwarder.Close(); err != nil {
+			logger.Warnf("关闭 SQL Server SSH 端口转发失败：%v", err)
+		}
+		s.forwarder = nil
+	}
+
+	if s.conn != nil {
+		return s.conn.Close()
+	}
+	return nil
+}
+
+func (s *SqlServerDB) Ping() error {
+	if s.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+	timeout := s.pingTimeout
+	if timeout <= 0 {
+		timeout = 5 * time.Second
+	}
+	ctx, cancel := utils.ContextWithTimeout(timeout)
+	defer cancel()
+	return s.conn.PingContext(ctx)
+}
+
+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")
+	}
+
+	rows, err := s.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+
+	return scanRows(rows)
+}
+
+func (s *SqlServerDB) Query(query string) ([]map[string]interface{}, []string, error) {
+	if s.conn == nil {
+		return nil, nil, fmt.Errorf("connection not open")
+	}
+
+	rows, err := s.conn.Query(query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+	return scanRows(rows)
+}
+
+func (s *SqlServerDB) ExecContext(ctx context.Context, query string) (int64, error) {
+	if s.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := s.conn.ExecContext(ctx, query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (s *SqlServerDB) Exec(query string) (int64, error) {
+	if s.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := s.conn.Exec(query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (s *SqlServerDB) GetDatabases() ([]string, error) {
+	query := "SELECT name FROM sys.databases WHERE state_desc = 'ONLINE' ORDER BY name"
+	data, _, err := s.Query(query)
+	if err != nil {
+		return nil, err
+	}
+	var dbs []string
+	for _, row := range data {
+		if val, ok := row["name"]; ok {
+			dbs = append(dbs, fmt.Sprintf("%v", val))
+		}
+	}
+	return dbs, nil
+}
+
+func (s *SqlServerDB) GetTables(dbName string) ([]string, error) {
+	// SQL Server uses schema.table format, default schema is dbo
+	safeDB := quoteBracket(dbName)
+	query := fmt.Sprintf(`
+SELECT s.name AS schema_name, t.name AS table_name
+FROM [%s].sys.tables t
+JOIN [%s].sys.schemas s ON t.schema_id = s.schema_id
+WHERE t.type = 'U'
+ORDER BY s.name, t.name`, safeDB, safeDB)
+
+	data, _, err := s.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var tables []string
+	for _, row := range data {
+		schema, okSchema := row["schema_name"]
+		name, okName := row["table_name"]
+		if okSchema && okName {
+			tables = append(tables, fmt.Sprintf("%v.%v", schema, name))
+			continue
+		}
+		if okName {
+			tables = append(tables, fmt.Sprintf("%v", name))
+		}
+	}
+	return tables, nil
+}
+
+func (s *SqlServerDB) GetCreateStatement(dbName, tableName string) (string, error) {
+	return fmt.Sprintf("-- SHOW CREATE TABLE not supported for SQL Server in this version.\n-- Table: %s.%s", dbName, tableName), nil
+}
+
+func (s *SqlServerDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
+	schema := "dbo"
+	table := strings.TrimSpace(tableName)
+
+	if parts := strings.SplitN(table, ".", 2); len(parts) == 2 {
+		schema = strings.TrimSpace(parts[0])
+		table = strings.TrimSpace(parts[1])
+	}
+
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+	safeDB := quoteBracket(dbName)
+
+	query := fmt.Sprintf(`
+SELECT
+    c.name AS column_name,
+    t.name + CASE
+        WHEN t.name IN ('varchar', 'nvarchar', 'char', 'nchar') THEN '(' + CASE WHEN c.max_length = -1 THEN 'MAX' ELSE CAST(CASE WHEN t.name IN ('nvarchar', 'nchar') THEN c.max_length / 2 ELSE c.max_length END AS VARCHAR) END + ')'
+        WHEN t.name IN ('decimal', 'numeric') THEN '(' + CAST(c.precision AS VARCHAR) + ',' + CAST(c.scale AS VARCHAR) + ')'
+        ELSE ''
+    END AS data_type,
+    CASE WHEN c.is_nullable = 1 THEN 'YES' ELSE 'NO' END AS is_nullable,
+    dc.definition AS column_default,
+    ep.value AS comment,
+    CASE WHEN pk.column_id IS NOT NULL THEN 'PRI' ELSE '' END AS column_key,
+    CASE WHEN c.is_identity = 1 THEN 'auto_increment' ELSE '' END AS extra
+FROM [%s].sys.columns c
+JOIN [%s].sys.types t ON c.user_type_id = t.user_type_id
+JOIN [%s].sys.tables tb ON c.object_id = tb.object_id
+JOIN [%s].sys.schemas s ON tb.schema_id = s.schema_id
+LEFT JOIN [%s].sys.default_constraints dc ON c.default_object_id = dc.object_id
+LEFT JOIN [%s].sys.extended_properties ep ON ep.major_id = c.object_id AND ep.minor_id = c.column_id AND ep.name = 'MS_Description'
+LEFT JOIN (
+    SELECT ic.object_id, ic.column_id
+    FROM [%s].sys.index_columns ic
+    JOIN [%s].sys.indexes i ON ic.object_id = i.object_id AND ic.index_id = i.index_id
+    WHERE i.is_primary_key = 1
+) pk ON pk.object_id = c.object_id AND pk.column_id = c.column_id
+WHERE s.name = '%s' AND tb.name = '%s'
+ORDER BY c.column_id`,
+		safeDB, safeDB, safeDB, safeDB, safeDB, safeDB, safeDB, safeDB,
+		esc(schema), esc(table))
+
+	data, _, err := s.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var columns []connection.ColumnDefinition
+	for _, row := range data {
+		col := connection.ColumnDefinition{
+			Name:     fmt.Sprintf("%v", row["column_name"]),
+			Type:     fmt.Sprintf("%v", row["data_type"]),
+			Nullable: fmt.Sprintf("%v", row["is_nullable"]),
+			Key:      fmt.Sprintf("%v", row["column_key"]),
+			Extra:    fmt.Sprintf("%v", row["extra"]),
+			Comment:  "",
+		}
+
+		if v, ok := row["comment"]; ok && v != nil {
+			col.Comment = fmt.Sprintf("%v", v)
+		}
+
+		if v, ok := row["column_default"]; ok && v != nil {
+			def := fmt.Sprintf("%v", v)
+			col.Default = &def
+		}
+
+		columns = append(columns, col)
+	}
+	return columns, nil
+}
+
+func (s *SqlServerDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
+	safeDB := quoteBracket(dbName)
+	query := fmt.Sprintf(`
+SELECT s.name AS schema_name, t.name AS table_name, c.name AS column_name, tp.name AS data_type
+FROM [%s].sys.columns c
+JOIN [%s].sys.tables t ON c.object_id = t.object_id
+JOIN [%s].sys.schemas s ON t.schema_id = s.schema_id
+JOIN [%s].sys.types tp ON c.user_type_id = tp.user_type_id
+WHERE t.type = 'U'
+ORDER BY s.name, t.name, c.column_id`, safeDB, safeDB, safeDB, safeDB)
+
+	data, _, err := s.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var cols []connection.ColumnDefinitionWithTable
+	for _, row := range data {
+		schema := fmt.Sprintf("%v", row["schema_name"])
+		table := fmt.Sprintf("%v", row["table_name"])
+		tableName := fmt.Sprintf("%s.%s", schema, table)
+
+		col := connection.ColumnDefinitionWithTable{
+			TableName: tableName,
+			Name:      fmt.Sprintf("%v", row["column_name"]),
+			Type:      fmt.Sprintf("%v", row["data_type"]),
+		}
+		cols = append(cols, col)
+	}
+	return cols, nil
+}
+
+func (s *SqlServerDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
+	schema := "dbo"
+	table := strings.TrimSpace(tableName)
+
+	if parts := strings.SplitN(table, ".", 2); len(parts) == 2 {
+		schema = strings.TrimSpace(parts[0])
+		table = strings.TrimSpace(parts[1])
+	}
+
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+	safeDB := quoteBracket(dbName)
+
+	query := fmt.Sprintf(`
+SELECT
+    i.name AS index_name,
+    c.name AS column_name,
+    i.is_unique,
+    ic.key_ordinal AS seq_in_index,
+    i.type_desc AS index_type
+FROM [%s].sys.indexes i
+JOIN [%s].sys.index_columns ic ON i.object_id = ic.object_id AND i.index_id = ic.index_id
+JOIN [%s].sys.columns c ON ic.object_id = c.object_id AND ic.column_id = c.column_id
+JOIN [%s].sys.tables t ON i.object_id = t.object_id
+JOIN [%s].sys.schemas s ON t.schema_id = s.schema_id
+WHERE s.name = '%s' AND t.name = '%s' AND i.name IS NOT NULL
+ORDER BY i.name, ic.key_ordinal`,
+		safeDB, safeDB, safeDB, safeDB, safeDB, esc(schema), esc(table))
+
+	data, _, err := s.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var indexes []connection.IndexDefinition
+	for _, row := range data {
+		isUnique := false
+		if v, ok := row["is_unique"]; ok && v != nil {
+			switch val := v.(type) {
+			case bool:
+				isUnique = val
+			case int64:
+				isUnique = val == 1
+			}
+		}
+
+		nonUnique := 1
+		if isUnique {
+			nonUnique = 0
+		}
+
+		seq := 0
+		if v, ok := row["seq_in_index"]; ok && v != nil {
+			switch val := v.(type) {
+			case int:
+				seq = val
+			case int64:
+				seq = int(val)
+			}
+		}
+
+		indexType := "NONCLUSTERED"
+		if v, ok := row["index_type"]; ok && v != nil {
+			indexType = strings.ToUpper(fmt.Sprintf("%v", v))
+		}
+
+		idx := connection.IndexDefinition{
+			Name:       fmt.Sprintf("%v", row["index_name"]),
+			ColumnName: fmt.Sprintf("%v", row["column_name"]),
+			NonUnique:  nonUnique,
+			SeqInIndex: seq,
+			IndexType:  indexType,
+		}
+		indexes = append(indexes, idx)
+	}
+	return indexes, nil
+}
+
+func (s *SqlServerDB) GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error) {
+	schema := "dbo"
+	table := strings.TrimSpace(tableName)
+
+	if parts := strings.SplitN(table, ".", 2); len(parts) == 2 {
+		schema = strings.TrimSpace(parts[0])
+		table = strings.TrimSpace(parts[1])
+	}
+
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+	safeDB := quoteBracket(dbName)
+
+	query := fmt.Sprintf(`
+SELECT
+    fk.name AS constraint_name,
+    c.name AS column_name,
+    rs.name AS foreign_schema,
+    rt.name AS foreign_table,
+    rc.name AS foreign_column
+FROM [%s].sys.foreign_keys fk
+JOIN [%s].sys.foreign_key_columns fkc ON fk.object_id = fkc.constraint_object_id
+JOIN [%s].sys.columns c ON fkc.parent_object_id = c.object_id AND fkc.parent_column_id = c.column_id
+JOIN [%s].sys.tables t ON fk.parent_object_id = t.object_id
+JOIN [%s].sys.schemas s ON t.schema_id = s.schema_id
+JOIN [%s].sys.tables rt ON fk.referenced_object_id = rt.object_id
+JOIN [%s].sys.schemas rs ON rt.schema_id = rs.schema_id
+JOIN [%s].sys.columns rc ON fkc.referenced_object_id = rc.object_id AND fkc.referenced_column_id = rc.column_id
+WHERE s.name = '%s' AND t.name = '%s'
+ORDER BY fk.name`,
+		safeDB, safeDB, safeDB, safeDB, safeDB, safeDB, safeDB, safeDB, esc(schema), esc(table))
+
+	data, _, err := s.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var fks []connection.ForeignKeyDefinition
+	for _, row := range data {
+		refSchema := fmt.Sprintf("%v", row["foreign_schema"])
+		refTable := fmt.Sprintf("%v", row["foreign_table"])
+		refTableName := fmt.Sprintf("%s.%s", refSchema, refTable)
+
+		fk := connection.ForeignKeyDefinition{
+			Name:           fmt.Sprintf("%v", row["constraint_name"]),
+			ColumnName:     fmt.Sprintf("%v", row["column_name"]),
+			RefTableName:   refTableName,
+			RefColumnName:  fmt.Sprintf("%v", row["foreign_column"]),
+			ConstraintName: fmt.Sprintf("%v", row["constraint_name"]),
+		}
+		fks = append(fks, fk)
+	}
+	return fks, nil
+}
+
+func (s *SqlServerDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error) {
+	schema := "dbo"
+	table := strings.TrimSpace(tableName)
+
+	if parts := strings.SplitN(table, ".", 2); len(parts) == 2 {
+		schema = strings.TrimSpace(parts[0])
+		table = strings.TrimSpace(parts[1])
+	}
+
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+	safeDB := quoteBracket(dbName)
+
+	query := fmt.Sprintf(`
+SELECT
+    tr.name AS trigger_name,
+    CASE WHEN tr.is_instead_of_trigger = 1 THEN 'INSTEAD OF' ELSE 'AFTER' END AS timing,
+    STUFF((
+        SELECT ', ' + te.type_desc
+        FROM [%s].sys.trigger_events te
+        WHERE te.object_id = tr.object_id
+        FOR XML PATH('')
+    ), 1, 2, '') AS event,
+    OBJECT_DEFINITION(tr.object_id) AS statement
+FROM [%s].sys.triggers tr
+JOIN [%s].sys.tables t ON tr.parent_id = t.object_id
+JOIN [%s].sys.schemas s ON t.schema_id = s.schema_id
+WHERE s.name = '%s' AND t.name = '%s'
+ORDER BY tr.name`,
+		safeDB, safeDB, safeDB, safeDB, esc(schema), esc(table))
+
+	data, _, err := s.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var triggers []connection.TriggerDefinition
+	for _, row := range data {
+		trig := connection.TriggerDefinition{
+			Name:      fmt.Sprintf("%v", row["trigger_name"]),
+			Timing:    fmt.Sprintf("%v", row["timing"]),
+			Event:     fmt.Sprintf("%v", row["event"]),
+			Statement: "",
+		}
+		if v, ok := row["statement"]; ok && v != nil {
+			trig.Statement = fmt.Sprintf("%v", v)
+		}
+		triggers = append(triggers, trig)
+	}
+	return triggers, nil
+}
+
+func (s *SqlServerDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
+	if s.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+
+	tx, err := s.conn.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	quoteIdent := func(name string) string {
+		n := strings.TrimSpace(name)
+		n = strings.Trim(n, "[]")
+		n = strings.ReplaceAll(n, "]", "]]")
+		if n == "" {
+			return "[]"
+		}
+		return "[" + n + "]"
+	}
+
+	schema := "dbo"
+	table := strings.TrimSpace(tableName)
+	if parts := strings.SplitN(table, ".", 2); len(parts) == 2 {
+		schema = strings.TrimSpace(parts[0])
+		table = strings.TrimSpace(parts[1])
+	}
+
+	qualifiedTable := fmt.Sprintf("%s.%s", quoteIdent(schema), quoteIdent(table))
+
+	// 1. Deletes
+	for _, pk := range changes.Deletes {
+		var wheres []string
+		var args []interface{}
+		idx := 0
+		for k, v := range pk {
+			idx++
+			wheres = append(wheres, fmt.Sprintf("%s = @p%d", quoteIdent(k), idx))
+			args = append(args, sql.Named(fmt.Sprintf("p%d", idx), v))
+		}
+		if len(wheres) == 0 {
+			continue
+		}
+		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)
+		}
+	}
+
+	// 2. Updates
+	for _, update := range changes.Updates {
+		var sets []string
+		var args []interface{}
+		idx := 0
+
+		for k, v := range update.Values {
+			idx++
+			sets = append(sets, fmt.Sprintf("%s = @p%d", quoteIdent(k), idx))
+			args = append(args, sql.Named(fmt.Sprintf("p%d", idx), v))
+		}
+
+		if len(sets) == 0 {
+			continue
+		}
+
+		var wheres []string
+		for k, v := range update.Keys {
+			idx++
+			wheres = append(wheres, fmt.Sprintf("%s = @p%d", quoteIdent(k), idx))
+			args = append(args, sql.Named(fmt.Sprintf("p%d", idx), v))
+		}
+
+		if len(wheres) == 0 {
+			return fmt.Errorf("update requires keys")
+		}
+
+		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)
+		}
+	}
+
+	// 3. Inserts
+	for _, row := range changes.Inserts {
+		var cols []string
+		var placeholders []string
+		var args []interface{}
+		idx := 0
+
+		for k, v := range row {
+			idx++
+			cols = append(cols, quoteIdent(k))
+			placeholders = append(placeholders, fmt.Sprintf("@p%d", idx))
+			args = append(args, sql.Named(fmt.Sprintf("p%d", idx), v))
+		}
+
+		if len(cols) == 0 {
+			continue
+		}
+
+		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 tx.Commit()
+}

internal/db/tdengine_impl.go

@@ -0,0 +1,398 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"net"
+	"strconv"
+	"strings"
+	"time"
+
+	"GoNavi-Wails/internal/connection"
+	"GoNavi-Wails/internal/logger"
+	"GoNavi-Wails/internal/ssh"
+	"GoNavi-Wails/internal/utils"
+
+	_ "github.com/taosdata/driver-go/v3/taosWS"
+)
+
+// TDengineDB implements Database interface for TDengine.
+// Uses taosWS driver via WebSocket (通常通过 taosAdapter 提供服务)。
+type TDengineDB struct {
+	conn        *sql.DB
+	pingTimeout time.Duration
+	forwarder   *ssh.LocalForwarder
+}
+
+func (t *TDengineDB) getDSN(config connection.ConnectionConfig) string {
+	user := strings.TrimSpace(config.User)
+	if user == "" {
+		user = "root"
+	}
+
+	pass := config.Password
+	dbName := strings.TrimSpace(config.Database)
+	path := "/"
+	if dbName != "" {
+		path = "/" + dbName
+	}
+
+	return fmt.Sprintf("%s:%s@ws(%s)%s", user, pass, net.JoinHostPort(config.Host, strconv.Itoa(config.Port)), path)
+}
+
+func (t *TDengineDB) Connect(config connection.ConnectionConfig) error {
+	var dsn string
+
+	if config.UseSSH {
+		logger.Infof("TDengine 使用 SSH 连接：地址=%s:%d 用户=%s", config.Host, config.Port, config.User)
+
+		forwarder, err := ssh.GetOrCreateLocalForwarder(config.SSH, config.Host, config.Port)
+		if err != nil {
+			return fmt.Errorf("创建 SSH 隧道失败：%w", err)
+		}
+		t.forwarder = forwarder
+
+		host, portStr, err := net.SplitHostPort(forwarder.LocalAddr)
+		if err != nil {
+			return fmt.Errorf("解析本地转发地址失败：%w", err)
+		}
+		port, err := strconv.Atoi(portStr)
+		if err != nil {
+			return fmt.Errorf("解析本地端口失败：%w", err)
+		}
+
+		localConfig := config
+		localConfig.Host = host
+		localConfig.Port = port
+		localConfig.UseSSH = false
+		dsn = t.getDSN(localConfig)
+		logger.Infof("TDengine 通过本地端口转发连接：%s -> %s:%d", forwarder.LocalAddr, config.Host, config.Port)
+	} else {
+		dsn = t.getDSN(config)
+	}
+
+	db, err := sql.Open("taosWS", dsn)
+	if err != nil {
+		return fmt.Errorf("打开数据库连接失败：%w", err)
+	}
+	t.conn = db
+	t.pingTimeout = getConnectTimeout(config)
+
+	if err := t.Ping(); err != nil {
+		return fmt.Errorf("连接建立后验证失败：%w", err)
+	}
+	return nil
+}
+
+func (t *TDengineDB) Close() error {
+	if t.forwarder != nil {
+		if err := t.forwarder.Close(); err != nil {
+			logger.Warnf("关闭 TDengine SSH 端口转发失败：%v", err)
+		}
+		t.forwarder = nil
+	}
+
+	if t.conn != nil {
+		return t.conn.Close()
+	}
+	return nil
+}
+
+func (t *TDengineDB) Ping() error {
+	if t.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+	timeout := t.pingTimeout
+	if timeout <= 0 {
+		timeout = 5 * time.Second
+	}
+	ctx, cancel := utils.ContextWithTimeout(timeout)
+	defer cancel()
+	return t.conn.PingContext(ctx)
+}
+
+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")
+	}
+
+	rows, err := t.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+
+	return scanRows(rows)
+}
+
+func (t *TDengineDB) Query(query string) ([]map[string]interface{}, []string, error) {
+	if t.conn == nil {
+		return nil, nil, fmt.Errorf("connection not open")
+	}
+
+	rows, err := t.conn.Query(query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+
+	return scanRows(rows)
+}
+
+func (t *TDengineDB) ExecContext(ctx context.Context, query string) (int64, error) {
+	if t.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := t.conn.ExecContext(ctx, query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (t *TDengineDB) Exec(query string) (int64, error) {
+	if t.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := t.conn.Exec(query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (t *TDengineDB) GetDatabases() ([]string, error) {
+	data, _, err := t.Query("SHOW DATABASES")
+	if err != nil {
+		return nil, err
+	}
+
+	var dbs []string
+	for _, row := range data {
+		if val, ok := getValueFromRow(row, "name", "database", "Database", "db_name"); ok {
+			dbs = append(dbs, fmt.Sprintf("%v", val))
+			continue
+		}
+		for _, val := range row {
+			dbs = append(dbs, fmt.Sprintf("%v", val))
+			break
+		}
+	}
+	return dbs, nil
+}
+
+func (t *TDengineDB) GetTables(dbName string) ([]string, error) {
+	queries := make([]string, 0, 2)
+	if strings.TrimSpace(dbName) != "" {
+		queries = append(queries, fmt.Sprintf("SHOW TABLES FROM `%s`", escapeBacktickIdent(dbName)))
+	}
+	queries = append(queries, "SHOW TABLES")
+
+	var lastErr error
+	for _, query := range queries {
+		data, _, err := t.Query(query)
+		if err != nil {
+			lastErr = err
+			continue
+		}
+
+		var tables []string
+		for _, row := range data {
+			if val, ok := getValueFromRow(row, "table_name", "tablename", "name", "Table", "table"); ok {
+				tables = append(tables, fmt.Sprintf("%v", val))
+				continue
+			}
+			for _, val := range row {
+				tables = append(tables, fmt.Sprintf("%v", val))
+				break
+			}
+		}
+		return tables, nil
+	}
+
+	if lastErr != nil {
+		return nil, lastErr
+	}
+	return []string{}, nil
+}
+
+func (t *TDengineDB) GetCreateStatement(dbName, tableName string) (string, error) {
+	qualified := quoteTDengineTable(dbName, tableName)
+	queries := []string{
+		fmt.Sprintf("SHOW CREATE TABLE %s", qualified),
+		fmt.Sprintf("SHOW CREATE STABLE %s", qualified),
+	}
+
+	var lastErr error
+	for _, query := range queries {
+		data, _, err := t.Query(query)
+		if err != nil {
+			lastErr = err
+			continue
+		}
+		if len(data) == 0 {
+			continue
+		}
+
+		row := data[0]
+		if val, ok := getValueFromRow(row, "Create Table", "create table", "Create Stable", "create stable", "SQL", "sql"); ok {
+			return fmt.Sprintf("%v", val), nil
+		}
+
+		longest := ""
+		for _, val := range row {
+			text := fmt.Sprintf("%v", val)
+			if strings.Contains(strings.ToUpper(text), "CREATE ") && len(text) > len(longest) {
+				longest = text
+			}
+		}
+		if longest != "" {
+			return longest, nil
+		}
+	}
+
+	if lastErr != nil {
+		return "", lastErr
+	}
+	return "", fmt.Errorf("create statement not found")
+}
+
+func (t *TDengineDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
+	query := fmt.Sprintf("DESCRIBE %s", quoteTDengineTable(dbName, tableName))
+	data, _, err := t.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	columns := make([]connection.ColumnDefinition, 0, len(data))
+	for _, row := range data {
+		name, _ := getValueFromRow(row, "Field", "field", "col_name", "column_name", "name")
+		colType, _ := getValueFromRow(row, "Type", "type", "data_type")
+		note, _ := getValueFromRow(row, "Note", "note", "Extra", "extra")
+		nullable, okNull := getValueFromRow(row, "Null", "null", "nullable")
+		comment, _ := getValueFromRow(row, "Comment", "comment")
+		defaultVal, hasDefault := getValueFromRow(row, "Default", "default")
+
+		col := connection.ColumnDefinition{
+			Name:     fmt.Sprintf("%v", name),
+			Type:     fmt.Sprintf("%v", colType),
+			Nullable: "YES",
+			Key:      "",
+			Extra:    fmt.Sprintf("%v", note),
+			Comment:  fmt.Sprintf("%v", comment),
+		}
+
+		if okNull {
+			col.Nullable = strings.ToUpper(fmt.Sprintf("%v", nullable))
+		}
+
+		noteUpper := strings.ToUpper(fmt.Sprintf("%v", note))
+		if strings.Contains(noteUpper, "TAG") {
+			col.Key = "TAG"
+		}
+
+		if hasDefault && defaultVal != nil {
+			def := fmt.Sprintf("%v", defaultVal)
+			if def != "<nil>" {
+				col.Default = &def
+			}
+		}
+
+		columns = append(columns, col)
+	}
+	return columns, nil
+}
+
+func (t *TDengineDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
+	if strings.TrimSpace(dbName) == "" {
+		return nil, fmt.Errorf("database name required for GetAllColumns")
+	}
+
+	tables, err := t.GetTables(dbName)
+	if err != nil {
+		return nil, err
+	}
+
+	cols := make([]connection.ColumnDefinitionWithTable, 0)
+	for _, table := range tables {
+		tableCols, err := t.GetColumns(dbName, table)
+		if err != nil {
+			continue
+		}
+		for _, col := range tableCols {
+			cols = append(cols, connection.ColumnDefinitionWithTable{
+				TableName: table,
+				Name:      col.Name,
+				Type:      col.Type,
+			})
+		}
+	}
+
+	return cols, nil
+}
+
+func (t *TDengineDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
+	return []connection.IndexDefinition{}, nil
+}
+
+func (t *TDengineDB) GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error) {
+	return []connection.ForeignKeyDefinition{}, nil
+}
+
+func (t *TDengineDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error) {
+	return []connection.TriggerDefinition{}, nil
+}
+
+func getValueFromRow(row map[string]interface{}, keys ...string) (interface{}, bool) {
+	if len(row) == 0 {
+		return nil, false
+	}
+
+	for _, key := range keys {
+		if val, ok := row[key]; ok {
+			return val, true
+		}
+	}
+
+	for existingKey, val := range row {
+		for _, key := range keys {
+			if strings.EqualFold(existingKey, key) {
+				return val, true
+			}
+		}
+	}
+
+	return nil, false
+}
+
+func escapeBacktickIdent(ident string) string {
+	return strings.ReplaceAll(strings.TrimSpace(ident), "`", "``")
+}
+
+func quoteTDengineTable(dbName, tableName string) string {
+	t := escapeBacktickIdent(tableName)
+	if t == "" {
+		return "``"
+	}
+	if strings.Contains(t, ".") {
+		parts := strings.Split(t, ".")
+		quoted := make([]string, 0, len(parts))
+		for _, part := range parts {
+			part = strings.TrimSpace(part)
+			if part == "" {
+				continue
+			}
+			quoted = append(quoted, fmt.Sprintf("`%s`", escapeBacktickIdent(part)))
+		}
+		if len(quoted) > 0 {
+			return strings.Join(quoted, ".")
+		}
+	}
+
+	db := escapeBacktickIdent(dbName)
+	if db == "" {
+		return fmt.Sprintf("`%s`", t)
+	}
+	return fmt.Sprintf("`%s`.`%s`", db, t)
+}

internal/db/vastbase_impl.go

@@ -0,0 +1,627 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"net"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"GoNavi-Wails/internal/connection"
+	"GoNavi-Wails/internal/logger"
+	"GoNavi-Wails/internal/ssh"
+	"GoNavi-Wails/internal/utils"
+
+	_ "github.com/lib/pq" // Vastbase is PostgreSQL compatible
+)
+
+// VastbaseDB implements Database interface for Vastbase (海量) database
+// Vastbase is a PostgreSQL-compatible database, so we reuse PostgreSQL driver
+type VastbaseDB struct {
+	conn        *sql.DB
+	pingTimeout time.Duration
+	forwarder   *ssh.LocalForwarder
+}
+
+func (v *VastbaseDB) getDSN(config connection.ConnectionConfig) string {
+	dbname := config.Database
+	if dbname == "" {
+		dbname = "vastbase" // Vastbase default database
+	}
+
+	u := &url.URL{
+		Scheme: "postgres",
+		Host:   net.JoinHostPort(config.Host, strconv.Itoa(config.Port)),
+		Path:   "/" + dbname,
+	}
+	u.User = url.UserPassword(config.User, config.Password)
+	q := url.Values{}
+	q.Set("sslmode", "disable")
+	q.Set("connect_timeout", strconv.Itoa(getConnectTimeoutSeconds(config)))
+	u.RawQuery = q.Encode()
+
+	return u.String()
+}
+
+func (v *VastbaseDB) Connect(config connection.ConnectionConfig) error {
+	var dsn string
+
+	if config.UseSSH {
+		logger.Infof("Vastbase 使用 SSH 连接：地址=%s:%d 用户=%s", config.Host, config.Port, config.User)
+
+		forwarder, err := ssh.GetOrCreateLocalForwarder(config.SSH, config.Host, config.Port)
+		if err != nil {
+			return fmt.Errorf("创建 SSH 隧道失败：%w", err)
+		}
+		v.forwarder = forwarder
+
+		host, portStr, err := net.SplitHostPort(forwarder.LocalAddr)
+		if err != nil {
+			return fmt.Errorf("解析本地转发地址失败：%w", err)
+		}
+
+		port, err := strconv.Atoi(portStr)
+		if err != nil {
+			return fmt.Errorf("解析本地端口失败：%w", err)
+		}
+
+		localConfig := config
+		localConfig.Host = host
+		localConfig.Port = port
+		localConfig.UseSSH = false
+
+		dsn = v.getDSN(localConfig)
+		logger.Infof("Vastbase 通过本地端口转发连接：%s -> %s:%d", forwarder.LocalAddr, config.Host, config.Port)
+	} else {
+		dsn = v.getDSN(config)
+	}
+
+	db, err := sql.Open("postgres", dsn)
+	if err != nil {
+		return fmt.Errorf("打开数据库连接失败：%w", err)
+	}
+	v.conn = db
+	v.pingTimeout = getConnectTimeout(config)
+
+	if err := v.Ping(); err != nil {
+		return fmt.Errorf("连接建立后验证失败：%w", err)
+	}
+	return nil
+}
+
+func (v *VastbaseDB) Close() error {
+	if v.forwarder != nil {
+		if err := v.forwarder.Close(); err != nil {
+			logger.Warnf("关闭 Vastbase SSH 端口转发失败：%v", err)
+		}
+		v.forwarder = nil
+	}
+
+	if v.conn != nil {
+		return v.conn.Close()
+	}
+	return nil
+}
+
+func (v *VastbaseDB) Ping() error {
+	if v.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+	timeout := v.pingTimeout
+	if timeout <= 0 {
+		timeout = 5 * time.Second
+	}
+	ctx, cancel := utils.ContextWithTimeout(timeout)
+	defer cancel()
+	return v.conn.PingContext(ctx)
+}
+
+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")
+	}
+
+	rows, err := v.conn.QueryContext(ctx, query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+
+	return scanRows(rows)
+}
+
+func (v *VastbaseDB) Query(query string) ([]map[string]interface{}, []string, error) {
+	if v.conn == nil {
+		return nil, nil, fmt.Errorf("connection not open")
+	}
+
+	rows, err := v.conn.Query(query)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer rows.Close()
+	return scanRows(rows)
+}
+
+func (v *VastbaseDB) ExecContext(ctx context.Context, query string) (int64, error) {
+	if v.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := v.conn.ExecContext(ctx, query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (v *VastbaseDB) Exec(query string) (int64, error) {
+	if v.conn == nil {
+		return 0, fmt.Errorf("connection not open")
+	}
+	res, err := v.conn.Exec(query)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (v *VastbaseDB) GetDatabases() ([]string, error) {
+	data, _, err := v.Query("SELECT datname FROM pg_database WHERE datistemplate = false")
+	if err != nil {
+		return nil, err
+	}
+	var dbs []string
+	for _, row := range data {
+		if val, ok := row["datname"]; ok {
+			dbs = append(dbs, fmt.Sprintf("%v", val))
+		}
+	}
+	return dbs, nil
+}
+
+func (v *VastbaseDB) GetTables(dbName string) ([]string, error) {
+	query := "SELECT schemaname, tablename FROM pg_catalog.pg_tables WHERE schemaname != 'information_schema' AND schemaname NOT LIKE 'pg_%' ORDER BY schemaname, tablename"
+	data, _, err := v.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var tables []string
+	for _, row := range data {
+		schema, okSchema := row["schemaname"]
+		name, okName := row["tablename"]
+		if okSchema && okName {
+			tables = append(tables, fmt.Sprintf("%v.%v", schema, name))
+			continue
+		}
+		if okName {
+			tables = append(tables, fmt.Sprintf("%v", name))
+		}
+	}
+	return tables, nil
+}
+
+func (v *VastbaseDB) GetCreateStatement(dbName, tableName string) (string, error) {
+	return fmt.Sprintf("-- SHOW CREATE TABLE not fully supported for Vastbase in this version.\n-- Table: %s", tableName), nil
+}
+
+func (v *VastbaseDB) GetColumns(dbName, tableName string) ([]connection.ColumnDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT
+	a.attname AS column_name,
+	pg_catalog.format_type(a.atttypid, a.atttypmod) AS data_type,
+	CASE WHEN a.attnotnull THEN 'NO' ELSE 'YES' END AS is_nullable,
+	pg_get_expr(ad.adbin, ad.adrelid) AS column_default,
+	col_description(a.attrelid, a.attnum) AS comment,
+	CASE WHEN pk.attname IS NOT NULL THEN 'PRI' ELSE '' END AS column_key
+FROM pg_class c
+JOIN pg_namespace n ON n.oid = c.relnamespace
+JOIN pg_attribute a ON a.attrelid = c.oid
+LEFT JOIN pg_attrdef ad ON ad.adrelid = c.oid AND ad.adnum = a.attnum
+LEFT JOIN (
+	SELECT i.indrelid, a3.attname
+	FROM pg_index i
+	JOIN pg_attribute a3 ON a3.attrelid = i.indrelid AND a3.attnum = ANY(i.indkey)
+	WHERE i.indisprimary
+) pk ON pk.indrelid = c.oid AND pk.attname = a.attname
+WHERE c.relkind IN ('r', 'p')
+  AND n.nspname = '%s'
+  AND c.relname = '%s'
+  AND a.attnum > 0
+  AND NOT a.attisdropped
+ORDER BY a.attnum`, esc(schema), esc(table))
+
+	data, _, err := v.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var columns []connection.ColumnDefinition
+	for _, row := range data {
+		col := connection.ColumnDefinition{
+			Name:     fmt.Sprintf("%v", row["column_name"]),
+			Type:     fmt.Sprintf("%v", row["data_type"]),
+			Nullable: fmt.Sprintf("%v", row["is_nullable"]),
+			Key:      fmt.Sprintf("%v", row["column_key"]),
+			Extra:    "",
+			Comment:  "",
+		}
+
+		if val, ok := row["comment"]; ok && val != nil {
+			col.Comment = fmt.Sprintf("%v", val)
+		}
+
+		if val, ok := row["column_default"]; ok && val != nil {
+			def := fmt.Sprintf("%v", val)
+			col.Default = &def
+			if strings.HasPrefix(strings.ToLower(strings.TrimSpace(def)), "nextval(") {
+				col.Extra = "auto_increment"
+			}
+		}
+
+		columns = append(columns, col)
+	}
+	return columns, nil
+}
+
+func (v *VastbaseDB) GetIndexes(dbName, tableName string) ([]connection.IndexDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT
+	i.relname AS index_name,
+	a.attname AS column_name,
+	ix.indisunique AS is_unique,
+	x.ordinality AS seq_in_index,
+	am.amname AS index_type
+FROM pg_class t
+JOIN pg_namespace n ON n.oid = t.relnamespace
+JOIN pg_index ix ON t.oid = ix.indrelid
+JOIN pg_class i ON i.oid = ix.indexrelid
+JOIN pg_am am ON i.relam = am.oid
+JOIN unnest(ix.indkey) WITH ORDINALITY AS x(attnum, ordinality) ON TRUE
+JOIN pg_attribute a ON a.attrelid = t.oid AND a.attnum = x.attnum
+WHERE t.relkind IN ('r', 'p')
+  AND t.relname = '%s'
+  AND n.nspname = '%s'
+ORDER BY i.relname, x.ordinality`, esc(table), esc(schema))
+
+	data, _, err := v.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	parseBool := func(val interface{}) bool {
+		switch v := val.(type) {
+		case bool:
+			return v
+		case string:
+			s := strings.ToLower(strings.TrimSpace(v))
+			return s == "t" || s == "true" || s == "1" || s == "y" || s == "yes"
+		default:
+			s := strings.ToLower(strings.TrimSpace(fmt.Sprintf("%v", val)))
+			return s == "t" || s == "true" || s == "1" || s == "y" || s == "yes"
+		}
+	}
+
+	parseInt := func(val interface{}) int {
+		switch v := val.(type) {
+		case int:
+			return v
+		case int64:
+			return int(v)
+		case float64:
+			return int(v)
+		case string:
+			var n int
+			_, _ = fmt.Sscanf(strings.TrimSpace(v), "%d", &n)
+			return n
+		default:
+			var n int
+			_, _ = fmt.Sscanf(strings.TrimSpace(fmt.Sprintf("%v", val)), "%d", &n)
+			return n
+		}
+	}
+
+	var indexes []connection.IndexDefinition
+	for _, row := range data {
+		isUnique := false
+		if val, ok := row["is_unique"]; ok && val != nil {
+			isUnique = parseBool(val)
+		}
+
+		nonUnique := 1
+		if isUnique {
+			nonUnique = 0
+		}
+
+		seq := 0
+		if val, ok := row["seq_in_index"]; ok && val != nil {
+			seq = parseInt(val)
+		}
+
+		indexType := ""
+		if val, ok := row["index_type"]; ok && val != nil {
+			indexType = strings.ToUpper(fmt.Sprintf("%v", val))
+		}
+		if indexType == "" {
+			indexType = "BTREE"
+		}
+
+		idx := connection.IndexDefinition{
+			Name:       fmt.Sprintf("%v", row["index_name"]),
+			ColumnName: fmt.Sprintf("%v", row["column_name"]),
+			NonUnique:  nonUnique,
+			SeqInIndex: seq,
+			IndexType:  indexType,
+		}
+		indexes = append(indexes, idx)
+	}
+	return indexes, nil
+}
+
+func (v *VastbaseDB) GetForeignKeys(dbName, tableName string) ([]connection.ForeignKeyDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT
+	tc.constraint_name AS constraint_name,
+	kcu.column_name AS column_name,
+	ccu.table_schema AS foreign_table_schema,
+	ccu.table_name AS foreign_table_name,
+	ccu.column_name AS foreign_column_name
+FROM information_schema.table_constraints AS tc
+JOIN information_schema.key_column_usage AS kcu
+  ON tc.constraint_name = kcu.constraint_name
+  AND tc.table_schema = kcu.table_schema
+JOIN information_schema.constraint_column_usage AS ccu
+  ON ccu.constraint_name = tc.constraint_name
+  AND ccu.table_schema = tc.table_schema
+WHERE tc.constraint_type = 'FOREIGN KEY'
+  AND tc.table_name = '%s'
+  AND tc.table_schema = '%s'
+ORDER BY tc.constraint_name, kcu.ordinal_position`, esc(table), esc(schema))
+
+	data, _, err := v.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var fks []connection.ForeignKeyDefinition
+	for _, row := range data {
+		refSchema := ""
+		if val, ok := row["foreign_table_schema"]; ok && val != nil {
+			refSchema = fmt.Sprintf("%v", val)
+		}
+		refTable := fmt.Sprintf("%v", row["foreign_table_name"])
+		refTableName := refTable
+		if strings.TrimSpace(refSchema) != "" {
+			refTableName = fmt.Sprintf("%s.%s", refSchema, refTable)
+		}
+
+		fk := connection.ForeignKeyDefinition{
+			Name:           fmt.Sprintf("%v", row["constraint_name"]),
+			ColumnName:     fmt.Sprintf("%v", row["column_name"]),
+			RefTableName:   refTableName,
+			RefColumnName:  fmt.Sprintf("%v", row["foreign_column_name"]),
+			ConstraintName: fmt.Sprintf("%v", row["constraint_name"]),
+		}
+		fks = append(fks, fk)
+	}
+	return fks, nil
+}
+
+func (v *VastbaseDB) GetTriggers(dbName, tableName string) ([]connection.TriggerDefinition, error) {
+	schema := strings.TrimSpace(dbName)
+	if schema == "" {
+		schema = "public"
+	}
+	table := strings.TrimSpace(tableName)
+	if table == "" {
+		return nil, fmt.Errorf("table name required")
+	}
+
+	esc := func(s string) string { return strings.ReplaceAll(s, "'", "''") }
+
+	query := fmt.Sprintf(`
+SELECT trigger_name, action_timing, event_manipulation, action_statement
+FROM information_schema.triggers
+WHERE event_object_table = '%s'
+  AND event_object_schema = '%s'
+ORDER BY trigger_name, event_manipulation`, esc(table), esc(schema))
+
+	data, _, err := v.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var triggers []connection.TriggerDefinition
+	for _, row := range data {
+		trig := connection.TriggerDefinition{
+			Name:      fmt.Sprintf("%v", row["trigger_name"]),
+			Timing:    fmt.Sprintf("%v", row["action_timing"]),
+			Event:     fmt.Sprintf("%v", row["event_manipulation"]),
+			Statement: fmt.Sprintf("%v", row["action_statement"]),
+		}
+		triggers = append(triggers, trig)
+	}
+	return triggers, nil
+}
+
+func (v *VastbaseDB) GetAllColumns(dbName string) ([]connection.ColumnDefinitionWithTable, error) {
+	query := `
+SELECT table_schema, table_name, column_name, data_type
+FROM information_schema.columns
+WHERE table_schema NOT IN ('pg_catalog', 'information_schema')
+  AND table_schema NOT LIKE 'pg_%'
+ORDER BY table_schema, table_name, ordinal_position`
+
+	data, _, err := v.Query(query)
+	if err != nil {
+		return nil, err
+	}
+
+	var cols []connection.ColumnDefinitionWithTable
+	for _, row := range data {
+		schema := fmt.Sprintf("%v", row["table_schema"])
+		table := fmt.Sprintf("%v", row["table_name"])
+		tableName := table
+		if strings.TrimSpace(schema) != "" {
+			tableName = fmt.Sprintf("%s.%s", schema, table)
+		}
+
+		col := connection.ColumnDefinitionWithTable{
+			TableName: tableName,
+			Name:      fmt.Sprintf("%v", row["column_name"]),
+			Type:      fmt.Sprintf("%v", row["data_type"]),
+		}
+		cols = append(cols, col)
+	}
+	return cols, nil
+}
+
+func (v *VastbaseDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
+	if v.conn == nil {
+		return fmt.Errorf("connection not open")
+	}
+
+	tx, err := v.conn.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	quoteIdent := func(name string) string {
+		n := strings.TrimSpace(name)
+		n = strings.Trim(n, "\"")
+		n = strings.ReplaceAll(n, "\"", "\"\"")
+		if n == "" {
+			return "\"\""
+		}
+		return `"` + n + `"`
+	}
+
+	schema := ""
+	table := strings.TrimSpace(tableName)
+	if parts := strings.SplitN(table, ".", 2); len(parts) == 2 {
+		schema = strings.TrimSpace(parts[0])
+		table = strings.TrimSpace(parts[1])
+	}
+
+	qualifiedTable := ""
+	if schema != "" {
+		qualifiedTable = fmt.Sprintf("%s.%s", quoteIdent(schema), quoteIdent(table))
+	} else {
+		qualifiedTable = quoteIdent(table)
+	}
+
+	// 1. Deletes
+	for _, pk := range changes.Deletes {
+		var wheres []string
+		var args []interface{}
+		idx := 0
+		for k, val := range pk {
+			idx++
+			wheres = append(wheres, fmt.Sprintf("%s = $%d", quoteIdent(k), idx))
+			args = append(args, val)
+		}
+		if len(wheres) == 0 {
+			continue
+		}
+		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)
+		}
+	}
+
+	// 2. Updates
+	for _, update := range changes.Updates {
+		var sets []string
+		var args []interface{}
+		idx := 0
+
+		for k, val := range update.Values {
+			idx++
+			sets = append(sets, fmt.Sprintf("%s = $%d", quoteIdent(k), idx))
+			args = append(args, val)
+		}
+
+		if len(sets) == 0 {
+			continue
+		}
+
+		var wheres []string
+		for k, val := range update.Keys {
+			idx++
+			wheres = append(wheres, fmt.Sprintf("%s = $%d", quoteIdent(k), idx))
+			args = append(args, val)
+		}
+
+		if len(wheres) == 0 {
+			return fmt.Errorf("update requires keys")
+		}
+
+		query := fmt.Sprintf("UPDATE %s SET %s WHERE %s", qualifiedTable, strings.Join(sets, ", "), strings.Join(wheres, " AND "))
+		if _, err := tx.Exec(query, args...); err != nil {
+			return fmt.Errorf("update error: %v", err)
+		}
+	}
+
+	// 3. Inserts
+	for _, row := range changes.Inserts {
+		var cols []string
+		var placeholders []string
+		var args []interface{}
+		idx := 0
+
+		for k, val := range row {
+			idx++
+			cols = append(cols, quoteIdent(k))
+			placeholders = append(placeholders, fmt.Sprintf("$%d", idx))
+			args = append(args, val)
+		}
+
+		if len(cols) == 0 {
+			continue
+		}
+
+		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 tx.Commit()
+}

internal/sync/sql_helpers.go

@@ -22,8 +22,11 @@ func quoteIdentByType(dbType string, ident string) string {
 	}
 
 	switch dbType {
-	case "mysql":
+	case "mysql", "mariadb":
 		return "`" + strings.ReplaceAll(ident, "`", "``") + "`"
+	case "sqlserver":
+		escaped := strings.ReplaceAll(ident, "]", "]]")
+		return "[" + escaped + "]"
 	default:
 		return `"` + strings.ReplaceAll(ident, `"`, `""`) + `"`
 	}
@@ -71,7 +74,7 @@ func normalizeSchemaAndTable(dbType string, dbName string, tableName string) (st
 	}
 
 	switch strings.ToLower(strings.TrimSpace(dbType)) {
-	case "postgres", "kingbase":
+	case "postgres", "kingbase", "vastbase":
 		return "public", rawTable
 	default:
 		return rawDB, rawTable
@@ -88,7 +91,7 @@ func qualifiedNameForQuery(dbType string, schema string, table string, original
 	}
 
 	switch strings.ToLower(strings.TrimSpace(dbType)) {
-	case "postgres", "kingbase":
+	case "postgres", "kingbase", "vastbase":
 		s := strings.TrimSpace(schema)
 		if s == "" {
 			s = "public"
@@ -97,7 +100,7 @@ func qualifiedNameForQuery(dbType string, schema string, table string, original
 			return raw
 		}
 		return s + "." + table
-	case "mysql":
+	case "mysql", "mariadb":
 		s := strings.TrimSpace(schema)
 		if s == "" || table == "" {
 			return table