diff --git a/frontend/package.json.md5 b/frontend/package.json.md5
index ad6ce0c..b8be944 100755
--- a/frontend/package.json.md5
+++ b/frontend/package.json.md5
@@ -1 +1 @@
-20168ff7047e0ecea00acb73f413f7db
\ No newline at end of file
+f697e821b4acd5cf614d63d46453e8a4
\ No newline at end of file
diff --git a/frontend/src/components/QueryEditor.tsx b/frontend/src/components/QueryEditor.tsx
index 4499651..1904e44 100644
--- a/frontend/src/components/QueryEditor.tsx
+++ b/frontend/src/components/QueryEditor.tsx
@@ -716,11 +716,16 @@ const QueryEditor: React.FC<{ tab: TabData; isActive?: boolean }> = ({ tab, isAc
                       // Prefer preloaded MySQL all-columns cache
                       let cols: { name: string, type?: string, tableName?: string, dbName?: string }[];
                       if (sharedAllColumnsData.length > 0) {
+                          const tiTableLower = (tableInfo.tableName || '').toLowerCase();
                           cols = sharedAllColumnsData
-                              .filter(c =>
-                                  (c.dbName || '').toLowerCase() === (tableInfo.dbName || '').toLowerCase() &&
-                                  (c.tableName || '').toLowerCase() === (tableInfo.tableName || '').toLowerCase()
-                              )
+                              .filter(c => {
+                                  if ((c.dbName || '').toLowerCase() !== (tableInfo.dbName || '').toLowerCase()) return false;
+                                  const cTableLower = (c.tableName || '').toLowerCase();
+                                  if (cTableLower === tiTableLower) return true;
+                                  // schema.table 格式匹配纯表名
+                                  const parsed = splitSchemaAndTable(c.tableName || '');
+                                  return (parsed.table || '').toLowerCase() === tiTableLower;
+                              })
                               .map(c => ({ name: c.name, type: c.type, tableName: c.tableName, dbName: c.dbName }));
                       } else {
                           const dbCols = await getColumnsByDB(tableInfo.tableName);
@@ -773,7 +778,10 @@ const QueryEditor: React.FC<{ tab: TabData; isActive?: boolean }> = ({ tab, isAc
                   .filter(c => {
                       const fullIdent = `${c.dbName}.${c.tableName}`.toLowerCase();
                       const shortIdent = (c.tableName || '').toLowerCase();
-                      return (foundTables.has(fullIdent) || foundTables.has(shortIdent)) && startsWithPrefix(c.name || '');
+                      // 对 schema.table 格式，也用纯表名部分匹配（如 public.users → users）
+                      const parsed = splitSchemaAndTable(c.tableName || '');
+                      const pureIdent = (parsed.table || '').toLowerCase();
+                      return (foundTables.has(fullIdent) || foundTables.has(shortIdent) || (pureIdent && foundTables.has(pureIdent))) && startsWithPrefix(c.name || '');
                   })
                   .map(c => {
                       // 当前库的表字段优先级更高
@@ -788,24 +796,61 @@ const QueryEditor: React.FC<{ tab: TabData; isActive?: boolean }> = ({ tab, isAc
                       };
                   });
 
-              // 表提示：当前库显示表名，其他库显示 db.table 格式
+              // 表提示：当前库智能处理 schema.table 格式
+              // 1. 构建纯表名到 schema 列表的映射，检测同名表
+              const currentDbTables = sharedTablesData.filter(t =>
+                  (t.dbName || '').toLowerCase() === currentDatabase.toLowerCase()
+              );
+              const tableNameToSchemas = new Map<string, string[]>();
+              for (const t of currentDbTables) {
+                  const parsed = splitSchemaAndTable(t.tableName || '');
+                  const pureTable = (parsed.table || t.tableName || '').toLowerCase();
+                  const schemas = tableNameToSchemas.get(pureTable) || [];
+                  schemas.push(parsed.schema || '');
+                  tableNameToSchemas.set(pureTable, schemas);
+              }
+
               const tableSuggestions = sharedTablesData
                 .filter(t => {
                     const isCurrentDb = (t.dbName || '').toLowerCase() === currentDatabase.toLowerCase();
-                    const label = isCurrentDb ? t.tableName : `${t.dbName}.${t.tableName}`;
-                    return startsWithPrefix(label || '');
+                    if (!isCurrentDb) {
+                        // 跨库：用 db.table 格式匹配
+                        return startsWithPrefix(`${t.dbName}.${t.tableName}`);
+                    }
+                    // 当前库：同时用完整名和纯表名匹配
+                    const parsed = splitSchemaAndTable(t.tableName || '');
+                    const pureTable = parsed.table || t.tableName || '';
+                    return startsWithPrefix(t.tableName || '') || startsWithPrefix(pureTable);
                 })
                 .map(t => {
                   const isCurrentDb = (t.dbName || '').toLowerCase() === currentDatabase.toLowerCase();
-                  const label = isCurrentDb ? t.tableName : `${t.dbName}.${t.tableName}`;
-                  const insertText = isCurrentDb ? t.tableName : `${t.dbName}.${t.tableName}`;
+                  if (!isCurrentDb) {
+                      const label = `${t.dbName}.${t.tableName}`;
+                      return {
+                          label,
+                          kind: monaco.languages.CompletionItemKind.Class,
+                          insertText: label,
+                          detail: `Table (${t.dbName})`,
+                          range,
+                          sortText: sortGroups.tableOther + t.tableName,
+                      };
+                  }
+                  // 当前库：检查是否有跨 schema 同名表
+                  const parsed = splitSchemaAndTable(t.tableName || '');
+                  const pureTable = parsed.table || t.tableName || '';
+                  const schemas = tableNameToSchemas.get(pureTable.toLowerCase()) || [];
+                  const hasDuplicate = schemas.length > 1;
+                  // 同名表存在于多个 schema → 显示 schema.table；否则只显示纯表名
+                  const label = hasDuplicate ? t.tableName : pureTable;
+                  const insertText = hasDuplicate ? t.tableName : pureTable;
+                  const schemaInfo = parsed.schema ? ` (${parsed.schema})` : '';
                   return {
                       label,
                       kind: monaco.languages.CompletionItemKind.Class,
                       insertText,
-                      detail: `Table (${t.dbName})`,
+                      detail: `Table${schemaInfo}`,
                       range,
-                      sortText: isCurrentDb ? sortGroups.tableCurrent + t.tableName : sortGroups.tableOther + t.tableName,
+                      sortText: sortGroups.tableCurrent + pureTable,
                   };
               });
 
diff --git a/internal/db/postgres_impl.go b/internal/db/postgres_impl.go
index 727b3dc..5970003 100644
--- a/internal/db/postgres_impl.go
+++ b/internal/db/postgres_impl.go
@@ -166,6 +166,9 @@ func (p *PostgresDB) Connect(config connection.ConnectionConfig) error {
 				logger.Infof("PostgreSQL 自动选择连接数据库：%s", dbName)
 			}
 
+			// 设置 search_path，使所有用户 schema 下的表可以不带 schema 前缀访问
+			p.ensureSearchPath(dsn)
+
 			cleanupOnFailure = false
 			return nil
 		}
@@ -611,6 +614,101 @@ ORDER BY table_schema, table_name, ordinal_position`
 	return cols, nil
 }
 
+// ensureSearchPath 查询当前数据库中所有用户 schema，通过重建连接池将 search_path 写入 DSN。
+// 仅使用 SET search_path 只对连接池中的单个连接生效，后续查询可能拿到未设置的连接。
+// 将 search_path 写入 DSN (lib/pq 支持任意 PostgreSQL runtime parameter)，
+// 使连接池中每个连接建立时自动携带 search_path，与金仓行为一致。
+func (p *PostgresDB) ensureSearchPath(baseDSN string) {
+	if p.conn == nil {
+		return
+	}
+
+	rawSchemas := p.queryUserSchemas()
+	if len(rawSchemas) == 0 {
+		return
+	}
+
+	// 构建 search_path SQL 片段（带双引号转义），用于 SET 兜底
+	searchPathSQL, normalizedSchemas := buildKingbaseSearchPathCommon(rawSchemas)
+	if strings.TrimSpace(searchPathSQL) == "" {
+		return
+	}
+
+	// 策略 1：将 search_path 写入 DSN，重建连接池
+	// lib/pq 支持在 URL 查参数中设置任意 PostgreSQL runtime parameter，
+	// 如 ?search_path=ce,public，每个新连接建立时会自动 SET search_path。
+	searchPathDSNVal := strings.Join(normalizedSchemas, ",")
+	u, parseErr := url.Parse(baseDSN)
+	if parseErr == nil {
+		q := u.Query()
+		q.Set("search_path", searchPathDSNVal)
+		u.RawQuery = q.Encode()
+		newDSN := u.String()
+
+		newDB, err := sql.Open("postgres", newDSN)
+		if err == nil {
+			newDB.SetConnMaxLifetime(5 * time.Minute)
+			oldConn := p.conn
+			p.conn = newDB
+			if err := p.Ping(); err == nil {
+				_ = oldConn.Close()
+				logger.Infof("PostgreSQL 已通过 DSN 配置 search_path：%s", searchPathDSNVal)
+				return
+			}
+			// DSN 方式失败，回滚
+			_ = newDB.Close()
+			p.conn = oldConn
+			logger.Warnf("PostgreSQL DSN search_path 验证失败，回退至 SET 方式")
+		}
+	}
+
+	// 策略 2 兜底：通过 SET search_path 设置（仅影响单个连接，但聊胜于无）
+	timeout := p.pingTimeout
+	if timeout <= 0 {
+		timeout = 5 * time.Second
+	}
+	ctx, cancel := utils.ContextWithTimeout(timeout)
+	defer cancel()
+
+	if _, err := p.conn.ExecContext(ctx, fmt.Sprintf("SET search_path TO %s", searchPathSQL)); err != nil {
+		logger.Warnf("PostgreSQL 设置 search_path 失败：%v", err)
+		return
+	}
+	logger.Infof("PostgreSQL 已通过 SET 设置 search_path：%s", searchPathSQL)
+}
+
+// queryUserSchemas 查询当前数据库中所有用户 schema。
+func (p *PostgresDB) queryUserSchemas() []string {
+	if p.conn == nil {
+		return nil
+	}
+
+	query := `SELECT nspname FROM pg_namespace
+		WHERE nspname NOT IN ('pg_catalog', 'information_schema')
+		  AND nspname NOT LIKE 'pg_%'
+		ORDER BY nspname`
+
+	rows, err := p.conn.Query(query)
+	if err != nil {
+		logger.Warnf("PostgreSQL 查询用户 schema 失败：%v", err)
+		return nil
+	}
+	defer rows.Close()
+
+	var schemas []string
+	for rows.Next() {
+		var name string
+		if err := rows.Scan(&name); err != nil {
+			continue
+		}
+		name = strings.TrimSpace(name)
+		if name != "" {
+			schemas = append(schemas, name)
+		}
+	}
+	return schemas
+}
+
 func (p *PostgresDB) ApplyChanges(tableName string, changes connection.ChangeSet) error {
 	if p.conn == nil {
 		return fmt.Errorf("连接未打开")