diff --git a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlASTVisitorAdapter.java b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlASTVisitorAdapter.java
new file mode 100644
index 0000000000..6c774fd09d
--- /dev/null
+++ b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlASTVisitorAdapter.java
@@ -0,0 +1,303 @@
+package com.alibaba.druid.sql.dialect.mysql.visitor;
+
+import com.alibaba.druid.sql.dialect.mysql.ast.MySqlKey;
+import com.alibaba.druid.sql.dialect.mysql.ast.MySqlPrimaryKey;
+import com.alibaba.druid.sql.dialect.mysql.ast.expr.MySqlBinaryExpr;
+import com.alibaba.druid.sql.dialect.mysql.ast.expr.MySqlBooleanExpr;
+import com.alibaba.druid.sql.dialect.mysql.ast.expr.MySqlExtractExpr;
+import com.alibaba.druid.sql.dialect.mysql.ast.expr.MySqlIntervalExpr;
+import com.alibaba.druid.sql.dialect.mysql.ast.expr.MySqlMatchAgainstExpr;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlCommitStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlDeleteStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlExecuteStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlInsertStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlLoadDataInFileStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlLoadXmlStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlPrepareStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlReplicateStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlRollbackStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectGroupBy;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock.Limit;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowColumnsStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatusStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowTablesStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowWarningsStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlStartTransactionStatement;
+import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlTableIndex;
+import com.alibaba.druid.sql.visitor.SQLASTVisitorAdapter;
+
+public class MySqlASTVisitorAdapter extends SQLASTVisitorAdapter implements MySqlASTVisitor {
+
+    @Override
+    public boolean visit(MySqlBooleanExpr x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlBooleanExpr x) {
+
+    }
+
+    @Override
+    public boolean visit(Limit x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(Limit x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlTableIndex x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlTableIndex x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlKey x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlKey x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlPrimaryKey x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlPrimaryKey x) {
+
+    }
+
+    @Override
+    public void endVisit(MySqlIntervalExpr x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlIntervalExpr x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlExtractExpr x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlExtractExpr x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlMatchAgainstExpr x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlMatchAgainstExpr x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlBinaryExpr x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlBinaryExpr x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlPrepareStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlPrepareStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlExecuteStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlExecuteStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlDeleteStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlDeleteStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlInsertStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlInsertStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlLoadDataInFileStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlLoadDataInFileStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlLoadXmlStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlLoadXmlStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlReplicateStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlReplicateStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlSelectGroupBy x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlSelectGroupBy x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlStartTransactionStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlStartTransactionStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlCommitStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlCommitStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlRollbackStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlRollbackStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlShowColumnsStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlShowColumnsStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlShowTablesStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlShowTablesStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlShowDatabasesStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlShowDatabasesStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlShowWarningsStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlShowWarningsStatement x) {
+
+        return true;
+    }
+
+    @Override
+    public void endVisit(MySqlShowStatusStatement x) {
+
+    }
+
+    @Override
+    public boolean visit(MySqlShowStatusStatement x) {
+
+        return true;
+    }
+
+}
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlSchemaStatVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlSchemaStatVisitor.java
new file mode 100644
index 0000000000..1fdbca9897
--- /dev/null
+++ b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlSchemaStatVisitor.java
@@ -0,0 +1,15 @@
+package com.alibaba.druid.sql.dialect.mysql.visitor;
+
+import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
+import com.alibaba.druid.sql.ast.expr.SQLPropertyExpr;
+
+public class MySqlSchemaStatVisitor extends MySqlASTVisitorAdapter {
+
+    public boolean visit(SQLPropertyExpr x) {
+        return true;
+    }
+
+    public boolean visit(SQLIdentifierExpr astNode) {
+        return true;
+    }
+}