diff --git a/crates/dbx-core/src/db/agent_driver.rs b/crates/dbx-core/src/db/agent_driver.rs
index 85910cf931..e0e115fe9b 100644
--- a/crates/dbx-core/src/db/agent_driver.rs
+++ b/crates/dbx-core/src/db/agent_driver.rs
@@ -1142,6 +1142,40 @@ mod tests {
         let _call_kv_method = AgentDriverClient::call_kv_method::<serde_json::Value>;
     }
 
+    #[test]
+    fn agent_query_result_default_column_types_is_empty_vec() {
+        // Old agent JARs predate the column_types field. Rust tolerates the
+        // missing field via #[serde(default)] on db::QueryResult.column_types
+        // and consumers must see an empty vector rather than an error.
+        let json = serde_json::json!({
+            "columns": ["id", "name"],
+            "rows": [[1, "Ada"]],
+            "affected_rows": 0,
+            "execution_time_ms": 1
+        });
+        let result: crate::types::QueryResult = serde_json::from_value(json).expect("deserialize legacy agent result");
+        assert_eq!(result.columns, vec!["id".to_string(), "name".to_string()]);
+        assert!(result.column_types.is_empty(), "missing column_types must default to empty");
+        assert_eq!(result.rows.len(), 1);
+    }
+
+    #[test]
+    fn agent_query_result_passes_through_column_types_when_present() {
+        // New PostgresLike agents (HighGo / KingBase / Vastbase / openGauss /
+        // GaussDB) include column_types alongside columns so the desktop UI
+        // can detect geometry/geography columns and offer the map preview.
+        let json = serde_json::json!({
+            "columns": ["id", "geom"],
+            "column_types": ["int4", "geometry"],
+            "rows": [[1, "POINT(116.397 39.908)"]],
+            "affected_rows": 0,
+            "execution_time_ms": 5
+        });
+        let result: crate::types::QueryResult = serde_json::from_value(json).expect("deserialize agent result");
+        assert_eq!(result.column_types, vec!["int4".to_string(), "geometry".to_string()]);
+        assert_eq!(result.rows[0][1], serde_json::json!("POINT(116.397 39.908)"));
+    }
+
     #[test]
     fn builds_mongo_agent_request_params() {
         assert_eq!(mongo_database_params("app"), serde_json::json!({ "database": "app" }));
diff --git a/docs/content/docs/databases.cn.mdx b/docs/content/docs/databases.cn.mdx
index 0a05cdc9c5..4c30de7762 100644
--- a/docs/content/docs/databases.cn.mdx
+++ b/docs/content/docs/databases.cn.mdx
@@ -79,6 +79,7 @@ DBX 只会在具备足够元数据和 SQL 生成能力的数据库上启用高
 | ER 图               | MySQL、PostgreSQL、SQLite、SQL Server、Oracle、Redshift、DM、GaussDB、KWDB、KingBase、HighGo、Vastbase、GoldenDB、Access、H2、DB2、Teradata、Vertica、Firebird、Exasol、GBase、YashanDB                                                     |
 | 数据库搜索          | MySQL、PostgreSQL、SQLite、SQL Server、Oracle、Redshift、DuckDB、ClickHouse、DM、GaussDB、KWDB、KingBase、HighGo、Vastbase、GoldenDB、Access、H2、Snowflake、Trino、Hive、DB2、Informix、Neo4j、Cassandra、BigQuery、Kylin、SunDB、TDengine、XuguDB、Databricks、Teradata、Vertica |
 | 表数据导入          | MySQL、PostgreSQL、SQLite、DuckDB、ClickHouse、SQL Server、Oracle、Doris、StarRocks、Redshift、DM、GaussDB、KWDB、KingBase、HighGo、Vastbase、GoldenDB、Access、Databend                                                                     |
+| 几何字段地图预览    | PostgreSQL、HighGo、KingBase、Vastbase、openGauss、GaussDB（PostGIS `geometry` / `geography` 列在结果集中以 WKT 显示，并提供网格工具栏的"地图预览"按钮）                                                                                       |
 | 表结构编辑器        | MySQL、PostgreSQL、SQLite、SQL Server、KWDB                                                                                                                                                                                                   |
 | 创建数据库          | MySQL、PostgreSQL、SQL Server、ClickHouse、Oracle、DM、GaussDB、KWDB、Doris、StarRocks、Redshift、Teradata、Vertica                                                                                                                           |
 | 字段血缘            | MySQL、PostgreSQL、SQLite、SQL Server、Oracle、Redshift、DM、GaussDB、KWDB                                                                                                                                                                    |
diff --git a/docs/content/docs/databases.mdx b/docs/content/docs/databases.mdx
index 784748e6c6..6d03237607 100644
--- a/docs/content/docs/databases.mdx
+++ b/docs/content/docs/databases.mdx
@@ -79,6 +79,7 @@ DBX intentionally enables advanced workflows only where the app has enough metad
 | ER diagram                     | MySQL, PostgreSQL, SQLite, SQL Server, Oracle, Redshift, DM, GaussDB, KWDB, KingBase, HighGo, Vastbase, GoldenDB, Access, H2, DB2, Teradata, Vertica, Firebird, Exasol, GBase, YashanDB                                                                                                |
 | Database search                | MySQL, PostgreSQL, SQLite, SQL Server, Oracle, Redshift, DuckDB, ClickHouse, DM, GaussDB, KWDB, KingBase, HighGo, Vastbase, GoldenDB, Access, H2, Snowflake, Trino, Hive, DB2, Informix, Neo4j, Cassandra, BigQuery, Kylin, SunDB, TDengine, XuguDB, Databricks, Teradata, Vertica      |
 | Table import                   | MySQL, PostgreSQL, SQLite, DuckDB, ClickHouse, SQL Server, Oracle, Doris, StarRocks, Redshift, DM, GaussDB, KWDB, KingBase, HighGo, Vastbase, GoldenDB, Access, Databend                                                                                                               |
+| Geometry map preview           | PostgreSQL, HighGo, KingBase, Vastbase, openGauss, GaussDB (PostGIS `geometry` / `geography` columns are returned as WKT in the result grid and unlock the grid-toolbar map preview button)                                                                                                |
 | Table structure editor         | MySQL, PostgreSQL, SQLite, SQL Server, KWDB                                                                                                                                                                                                                                           |
 | Create database                | MySQL, PostgreSQL, SQL Server, ClickHouse, Oracle, DM, GaussDB, KWDB, Doris, StarRocks, Redshift, Teradata, Vertica                                                                                                                                                                   |
 | Field lineage                  | MySQL, PostgreSQL, SQLite, SQL Server, Oracle, Redshift, DM, GaussDB, KWDB                                                                                                                                                                                                            |