diff --git a/chat2db-server/chat2db-plugins/chat2db-clickhouse/src/main/java/ai/chat2db/plugin/clickhouse/builder/ClickHouseSqlBuilder.java b/chat2db-server/chat2db-plugins/chat2db-clickhouse/src/main/java/ai/chat2db/plugin/clickhouse/builder/ClickHouseSqlBuilder.java
index 9f313c27c..e3f20f0b1 100644
--- a/chat2db-server/chat2db-plugins/chat2db-clickhouse/src/main/java/ai/chat2db/plugin/clickhouse/builder/ClickHouseSqlBuilder.java
+++ b/chat2db-server/chat2db-plugins/chat2db-clickhouse/src/main/java/ai/chat2db/plugin/clickhouse/builder/ClickHouseSqlBuilder.java
@@ -2,7 +2,6 @@
 
 import ai.chat2db.plugin.clickhouse.type.ClickHouseColumnTypeEnum;
 import ai.chat2db.plugin.clickhouse.type.ClickHouseIndexTypeEnum;
-import ai.chat2db.spi.SqlBuilder;
 import ai.chat2db.spi.jdbc.DefaultSqlBuilder;
 import ai.chat2db.spi.model.Database;
 import ai.chat2db.spi.model.Table;
@@ -10,6 +9,8 @@
 import ai.chat2db.spi.model.TableIndex;
 import org.apache.commons.lang3.StringUtils;
 
+import java.util.List;
+
 
 public class ClickHouseSqlBuilder extends DefaultSqlBuilder {
     @Override
diff --git a/chat2db-server/chat2db-plugins/chat2db-h2/src/main/java/ai/chat2db/plugin/h2/H2Meta.java b/chat2db-server/chat2db-plugins/chat2db-h2/src/main/java/ai/chat2db/plugin/h2/H2Meta.java
index 1b1cc2fd6..05f938c3b 100644
--- a/chat2db-server/chat2db-plugins/chat2db-h2/src/main/java/ai/chat2db/plugin/h2/H2Meta.java
+++ b/chat2db-server/chat2db-plugins/chat2db-h2/src/main/java/ai/chat2db/plugin/h2/H2Meta.java
@@ -3,6 +3,7 @@
 import java.sql.Connection;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
+import java.sql.SQLException;
 import java.util.*;
 import java.util.stream.Collectors;
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-hive/src/main/java/ai/chat2db/plugin/hive/builder/HiveSqlBuilder.java b/chat2db-server/chat2db-plugins/chat2db-hive/src/main/java/ai/chat2db/plugin/hive/builder/HiveSqlBuilder.java
index 02a761df7..a3ca677dd 100644
--- a/chat2db-server/chat2db-plugins/chat2db-hive/src/main/java/ai/chat2db/plugin/hive/builder/HiveSqlBuilder.java
+++ b/chat2db-server/chat2db-plugins/chat2db-hive/src/main/java/ai/chat2db/plugin/hive/builder/HiveSqlBuilder.java
@@ -2,6 +2,7 @@
 
 import ai.chat2db.plugin.hive.type.HiveColumnTypeEnum;
 import ai.chat2db.plugin.hive.type.HiveIndexTypeEnum;
+import ai.chat2db.spi.SqlBuilder;
 import ai.chat2db.spi.jdbc.DefaultSqlBuilder;
 import ai.chat2db.spi.model.Database;
 import ai.chat2db.spi.model.Table;
@@ -9,6 +10,7 @@
 import ai.chat2db.spi.model.TableIndex;
 import org.apache.commons.lang3.StringUtils;
 
+import java.util.List;
 
 
 public class HiveSqlBuilder extends DefaultSqlBuilder implements SqlBuilder<Table> {
diff --git a/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/RdbDmlController.java b/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/RdbDmlController.java
index d85cd4c81..6a32919de 100644
--- a/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/RdbDmlController.java
+++ b/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/RdbDmlController.java
@@ -129,17 +129,13 @@ public DataResult<String> getUpdateSelectResultSql(@RequestBody SelectResultUpda
 
     @RequestMapping(value = "/get_group_by_sql", method = {RequestMethod.POST, RequestMethod.PUT})
     public DataResult<String> getGroupBySql(@RequestBody GroupByRequest request) {
-
         GroupByParam param = rdbWebConverter.request2param(request);
-
         return dlTemplateService.getGroupBySql(param);
     }
 
     @RequestMapping(value = "/get_order_by_sql", method = {RequestMethod.POST, RequestMethod.PUT})
     public DataResult<String> getOrderBySql(@RequestBody OrderByRequest request) {
-
         OrderByParam param = rdbWebConverter.request2param(request);
-
         return dlTemplateService.getOrderBySql(param);
     }
 
diff --git a/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/converter/RdbWebConverter.java b/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/converter/RdbWebConverter.java
index f9c529a5b..3e659fcf2 100644
--- a/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/converter/RdbWebConverter.java
+++ b/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/rdb/converter/RdbWebConverter.java
@@ -50,6 +50,14 @@ public abstract class RdbWebConverter {
      */
     public abstract OrderByParam request2param(OrderByRequest request);
 
+    /**
+     * Parameter conversion
+     *
+     * @param request
+     * @return
+     */
+    public abstract GroupByParam request2param(GroupByRequest request);
+
     /**
      * Parameter conversion
      *