diff --git a/tests/army/grant/grantBugs.py b/tests/army/grant/grantBugs.py
new file mode 100644
index 0000000000..8888d50861
--- /dev/null
+++ b/tests/army/grant/grantBugs.py
@@ -0,0 +1,65 @@
+###################################################################
+#           Copyright (c) 2016 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 frame.etool
+
+from frame.log import *
+from frame.cases import *
+from frame.sql import *
+from frame.caseBase import *
+from frame import *
+from frame.autogen import *
+
+
+class TDTestCase(TBase):
+    
+    def td_30642(self):
+        sqls = [
+            "CREATE DATABASE IF NOT EXISTS `_xTest2`",
+            "CREATE USER `_xTest` PASS 'taosdata'",
+            "CREATE TABLE IF NOT EXISTS `_xTest2`.`meters` (ts timestamp, v1 int) tags(t1 int)",
+
+            "CREATE DATABASE IF NOT EXISTS `test2`",
+            "CREATE USER `user1` PASS 'taosdata'",
+            "CREATE TABLE IF NOT EXISTS `test2`.`meters2` (ts timestamp, v1 int) tags(t1 int)"
+        ]
+        tdSql.executes(sqls)
+
+        sql1 = 'GRANT read ON `_xTest2`.`meters` WITH (t1 = 1) TO `_xTest`'
+        tdSql.query(sql1)
+        sql1_verify = "select * from information_schema.ins_user_privileges where user_name='_xTest' and privilege='read' and db_name='_xTest2' and table_name='meters'"
+        tdSql.query(sql1_verify)
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 4, '(`_xTest2`.`meters`.`t1` = 1)')
+
+        sql2 = 'GRANT write ON test2.meters2 WITH (t1 = 1) TO user1'
+        tdSql.query(sql2)
+        sql2_verify = "select * from information_schema.ins_user_privileges where user_name='user1' and privilege='write' and db_name='test2' and table_name='meters2'"
+        tdSql.query(sql2_verify)
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 4, '(`test2`.`meters2`.`t1` = 1)')
+
+    # run
+    def run(self):
+        tdLog.debug(f"start to excute {__file__}")
+
+        # TD-30642
+        self.td_30642()
+
+
+        tdLog.success(f"{__file__} successfully executed")
+
+        
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())
diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 6114a560dc..b96c8eb030 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -30,6 +30,7 @@
 ,,y,army,./pytest.sh python3 ./test.py -f query/subquery/subqueryBugs.py -N 3
 ,,y,army,./pytest.sh python3 ./test.py -f storage/oneStageComp.py -N 3 -L 3 -D 1
 ,,y,army,./pytest.sh python3 ./test.py -f storage/compressBasic.py -N 3
+,,y,army,./pytest.sh python3 ./test.py -f grant/grantBugs.py -N 3
 
 #
 # system test