fix(tdengine): keep database context when viewing tables

apps/desktop/src/lib/database/jdbcDialect.ts

@@ -38,6 +38,7 @@ const JDBC_DIALECT_MATCHERS: Array<{ type: DatabaseType; patterns: RegExp[] }> =
   { type: "sqlserver", patterns: [/jdbc:sqlserver:/i, /sqlserver/i, /mssql/i] },
   { type: "oracle", patterns: [/jdbc:oracle:/i, /oracle/i] },
   { type: "clickhouse", patterns: [/jdbc:clickhouse:/i, /clickhouse/i] },
+  { type: "tdengine", patterns: [/jdbc:taos(?:-rs|-ws)?:/i, /taosdata/i, /tdengine/i] },
   { type: "h2", patterns: [/jdbc:h2:/i, /\bh2\b/i] },
   { type: "sqlite", patterns: [/jdbc:sqlite:/i, /sqlite/i] },
   { type: "db2", patterns: [/jdbc:db2:/i, /\bdb2\b/i] },
@@ -214,6 +215,8 @@ export function connectionUsesDatabaseObjectTreeMode(connection?: JdbcDialectCon
   const dialect = inferJdbcDialect(connection);
   if (!dialect) return true;
   if (dialect === "hive" || dialect === "trino") return false;
+  // TDengine exposes databases as the top-level namespace, without schemas.
+  if (dialect === "tdengine") return false;
   if (dialect === "databend") return true;
   return !usesTreeSchemaMode(dialect);
 }