diff --git a/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBManage.java b/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBManage.java
index dccb20e1..3bcf1571 100644
--- a/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBManage.java
+++ b/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBManage.java
@@ -2,16 +2,11 @@ package ai.chat2db.plugin.mariadb;
 
 import java.sql.Connection;
 
+import ai.chat2db.plugin.mysql.MysqlDBManage;
 import ai.chat2db.spi.DBManage;
 import ai.chat2db.spi.jdbc.DefaultDBManage;
 import ai.chat2db.spi.sql.SQLExecutor;
 
-public class MariaDBManage extends DefaultDBManage implements DBManage {
+public class MariaDBManage extends MysqlDBManage implements DBManage {
 
-
-    @Override
-    public void dropTable(Connection connection, String databaseName, String schemaName, String tableName) {
-        String sql = "DROP TABLE " +tableName ;
-        SQLExecutor.getInstance().executeSql(connection,sql, resultSet -> null);
-    }
 }
diff --git a/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBMetaData.java b/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBMetaData.java
index ccfca079..675cd3f4 100644
--- a/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-mariadb/src/main/java/ai/chat2db/plugin/mariadb/MariaDBMetaData.java
@@ -1,122 +1,9 @@
 package ai.chat2db.plugin.mariadb;
 
-import java.sql.Connection;
-import java.util.ArrayList;
-import java.util.List;
 
 import ai.chat2db.plugin.mysql.MysqlMetaData;
 import ai.chat2db.spi.MetaData;
-import ai.chat2db.spi.jdbc.DefaultMetaService;
-import ai.chat2db.spi.model.Function;
-import ai.chat2db.spi.model.Procedure;
-import ai.chat2db.spi.model.Table;
-import ai.chat2db.spi.model.Trigger;
-import ai.chat2db.spi.sql.SQLExecutor;
-import jakarta.validation.constraints.NotEmpty;
 
 public class MariaDBMetaData extends MysqlMetaData implements MetaData {
 
-
-//    private static String ROUTINES_SQL
-//        =
-//        "SELECT SPECIFIC_NAME, ROUTINE_COMMENT, ROUTINE_DEFINITION FROM information_schema.routines WHERE "
-//            + "routine_type = '%s' AND ROUTINE_SCHEMA ='%s'  AND "
-//            + "routine_name = '%s';";
-//
-//    @Override
-//    public Function function(Connection connection, @NotEmpty String databaseName, String schemaName,
-//        String functionName) {
-//
-//        String sql = String.format(ROUTINES_SQL, "FUNCTION", databaseName, functionName);
-//        return SQLExecutor.getInstance().execute(connection, sql, resultSet -> {
-//            Function function = new Function();
-//            function.setDatabaseName(databaseName);
-//            function.setSchemaName(schemaName);
-//            function.setFunctionName(functionName);
-//            if (resultSet.next()) {
-//                function.setSpecificName(resultSet.getString("SPECIFIC_NAME"));
-//                function.setRemarks(resultSet.getString("ROUTINE_COMMENT"));
-//                function.setFunctionBody(resultSet.getString("ROUTINE_DEFINITION"));
-//            }
-//            return function;
-//        });
-//
-//    }
-//
-//    private static String TRIGGER_SQL
-//        = "SELECT TRIGGER_NAME,EVENT_MANIPULATION, ACTION_STATEMENT  FROM INFORMATION_SCHEMA.TRIGGERS where "
-//        + "TRIGGER_SCHEMA = '%s' AND TRIGGER_NAME = '%s';";
-//
-//    private static String TRIGGER_SQL_LIST
-//        = "SELECT TRIGGER_NAME FROM INFORMATION_SCHEMA.TRIGGERS where TRIGGER_SCHEMA = '%s';";
-//
-//    @Override
-//    public List<Trigger> triggers(Connection connection, String databaseName, String schemaName) {
-//        List<Trigger> triggers = new ArrayList<>();
-//        String sql = String.format(TRIGGER_SQL_LIST, databaseName);
-//        return SQLExecutor.getInstance().execute(connection, sql, resultSet -> {
-//            while (resultSet.next()) {
-//                Trigger trigger = new Trigger();
-//                trigger.setTriggerName(resultSet.getString("TRIGGER_NAME"));
-//                trigger.setSchemaName(schemaName);
-//                trigger.setDatabaseName(databaseName);
-//                triggers.add(trigger);
-//            }
-//            return triggers;
-//        });
-//    }
-//
-//    @Override
-//    public Trigger trigger(Connection connection, @NotEmpty String databaseName, String schemaName,
-//        String triggerName) {
-//
-//        String sql = String.format(TRIGGER_SQL, databaseName, triggerName);
-//        return SQLExecutor.getInstance().execute(connection, sql, resultSet -> {
-//            Trigger trigger = new Trigger();
-//            trigger.setDatabaseName(databaseName);
-//            trigger.setSchemaName(schemaName);
-//            trigger.setTriggerName(triggerName);
-//            if (resultSet.next()) {
-//                trigger.setTriggerBody(resultSet.getString("ACTION_STATEMENT"));
-//            }
-//            return trigger;
-//        });
-//    }
-//
-//    @Override
-//    public Procedure procedure(Connection connection, @NotEmpty String databaseName, String schemaName,
-//        String procedureName) {
-//        String sql = String.format(ROUTINES_SQL, "PROCEDURE", databaseName, procedureName);
-//        return SQLExecutor.getInstance().execute(connection, sql, resultSet -> {
-//            Procedure procedure = new Procedure();
-//            procedure.setDatabaseName(databaseName);
-//            procedure.setSchemaName(schemaName);
-//            procedure.setProcedureName(procedureName);
-//            if (resultSet.next()) {
-//                procedure.setSpecificName(resultSet.getString("SPECIFIC_NAME"));
-//                procedure.setRemarks(resultSet.getString("ROUTINE_COMMENT"));
-//                procedure.setProcedureBody(resultSet.getString("ROUTINE_DEFINITION"));
-//            }
-//            return procedure;
-//        });
-//    }
-//
-//    private static String VIEW_SQL
-//        = "SELECT TABLE_SCHEMA AS DatabaseName, TABLE_NAME AS ViewName, VIEW_DEFINITION AS definition, CHECK_OPTION, "
-//        + "IS_UPDATABLE FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_SCHEMA = '%s' AND TABLE_NAME = '%s';";
-//
-//    @Override
-//    public Table view(Connection connection, String databaseName, String schemaName, String viewName) {
-//        String sql = String.format(VIEW_SQL, databaseName, viewName);
-//        return SQLExecutor.getInstance().execute(connection, sql, resultSet -> {
-//            Table table = new Table();
-//            table.setDatabaseName(databaseName);
-//            table.setSchemaName(schemaName);
-//            table.setName(viewName);
-//            if (resultSet.next()) {
-//                table.setDdl(resultSet.getString("definition"));
-//            }
-//            return table;
-//        });
-//    }
 }
diff --git a/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/sql/SQLExecutor.java b/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/sql/SQLExecutor.java
index fc962c57..834a3749 100644
--- a/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/sql/SQLExecutor.java
+++ b/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/sql/SQLExecutor.java
@@ -461,7 +461,6 @@ public class SQLExecutor {
             return dbVersion;
         } catch (Exception e) {
             log.error("get db version error", e);
-            //throw new RuntimeException(e);
         }
         return "";
     }