[TD-13246]<fix>(query): Coredump when parentheses appear before the insert_sql

tests/develop-test/2-query/TD-13246.py

+###################################################################
+#           Copyright (c) 2021 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1<ganlin zhao>: [TD-13246] Coredump when parentheses appear before the insert_sql
+        '''
+        return
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.prepare()
+
+        tdSql.execute('create stable st(ts timestamp , value int) tags (ind int)')
+        tdSql.execute('create table  ctb using st tags(1)')
+        tdSql.execute('create table  tb (ts timestamp, value int)')
+        tdSql.query('insert into ctb values(now, 1)');
+        tdSql.query('insert into tb values(now, 1)');
+
+        tdSql.error('(insert into ctb values(now, 1)');
+        tdSql.error('(insert into tb values(now, 1)');
+        tdSql.error('(insert into ctb values');
+        tdSql.error('(insert into ctb');
+        tdSql.error('(insert into');
+        tdSql.error('(insert');
+        tdSql.error('(');
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())