[TD-2161]<test> add test case

tests/pytest/fulltest.sh

@@ -161,6 +161,7 @@ python3 ./test.py -f query/bug1875.py
 python3 ./test.py -f query/bug1876.py
 python3 ./test.py -f query/bug2218.py
 python3 ./test.py -f query/bug2117.py
+python3 ./test.py -f query/bug2143.py
 python3 ./test.py -f query/sliding.py 
 
 #stream

tests/pytest/query/bug2143.py

@@ -0,0 +1,73 @@
+###################################################################
+#           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 sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+        print("==========step1")
+        print("create table && insert data")
+        
+        tdSql.execute("create table mt0 (ts timestamp, c1 int, c2 float, c3 bigint, c4 smallint, c5 tinyint, c6 double, c7 bool,c8 binary(20),c9 nchar(20))")
+        insertRows = 1000
+        t0 = 1604298064000
+        tdLog.info("insert %d rows" % (insertRows))
+        for i in range(insertRows):
+            ret = tdSql.execute(
+                "insert into mt0 values (%d , %d,%d,%d,%d,%d,%d,%d,'%s','%s')" %
+                (t0+i,i%100,i/2.0,i%41,i%51,i%53,i*1.0,i%2,'taos'+str(i%43),'涛思'+str(i%41)))
+        print("==========step2")
+        print("test group by normal_col with limit offset")
+        tdSql.query('select max(c1),min(c1),first(c1),last(c1) from mt0 group by c3 limit 3 offset 2')
+        tdSql.checkData(0,0,99)
+        tdSql.checkData(0,1,2)
+        tdSql.checkData(0,2,2)
+        tdSql.checkData(0,3,86)
+        tdSql.checkData(1,0,95)
+        tdSql.checkData(2,1,1)
+        tdSql.query('select max(c1),min(c1),first(c1),last(c1) from mt0 group by c3 limit 3 offset 40')
+        tdSql.checkRows(1)
+        tdSql.query('select max(c1),min(c1),first(c1),last(c1) from mt0 group by c3 limit 3 offset 41')
+        tdSql.checkRows(0)
+        tdSql.query('select max(c1),min(c1),first(c1),last(c1) from mt0 group by c3 limit 3 offset 99')
+        tdSql.checkRows(0)
+        tdSql.query('select max(c1),min(c1),first(c1),last(c1) from mt0 group by c3 limit 70 offset 3')
+        tdSql.checkRows(38)
+        tdSql.query('select max(c1),min(c1),first(c1),last(c1) from mt0 group by c8 limit 3 offset 2')
+        tdSql.checkData(0,0,91)
+        tdSql.checkData(0,1,2)
+        tdSql.checkData(0,2,2)
+        tdSql.checkData(0,3,91)
+        tdSql.checkData(1,0,92)
+        tdSql.checkData(2,1,4)
+        tdSql.query('select max(c1),min(c1),first(c1),last(c1) from mt0 group by c9 limit 2 offset 9')
+        tdSql.checkData(0,0,96)
+        tdSql.checkData(0,1,1)
+        tdSql.checkData(0,2,9)
+        tdSql.checkData(0,3,93)
+        tdSql.checkData(1,0,97)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())