Merge pull request #7988 from taosdata/test/td-6586-2

[TD-6586]<test>: add 1 testcase for TD-6586:Binary type value return None with python connector

tests/pytest/fulltest.sh

@@ -267,6 +267,7 @@ python3 ./test.py -f query/nestquery_last_row.py
 python3 ./test.py -f query/queryCnameDisplay.py
 python3 ./test.py -f query/operator_cost.py
 python3 test.py -f query/nestedQuery/queryWithSpread.py
+python3 ./test.py -f query/bug6586.py
 
 #stream
 python3 ./test.py -f stream/metric_1.py

tests/pytest/query/bug6586.py

+###################################################################
+#           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 -*-
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        # TD-6586 Binary type value return None with python connector
+        # PR: https://github.com/taosdata/TDengine/pull/7913/files
+
+        tdSql.execute("create database if not exists binary_convertion")
+        tdSql.execute("use binary_convertion")
+        tdSql.execute("create stable stb (ts timestamp,value binary(3)) tags (t0 bool,t1 tinyint,t2 smallint,t3 int,t4 bigint,t5 float,t6 double,t7 binary(3),t8 nchar(3))")
+        tdSql.execute("create table if not exists tb1 using stb(t0,t1,t2,t3,t4,t5,t6,t7,t8) tags (1,127,32767,2147483647,9223372036854775807,11.123450279,22.123456789,'aaa','aaa')")
+        tdSql.execute("insert into tb1 (ts,value) values (1600000000000, \"aaa\")")
+        res = tdSql.query('select * from stb', True)
+        expected_res = [(datetime.datetime(2020, 9, 13, 20, 26, 40), 'aaa', True, 127, 32767, 2147483647, 9223372036854775807, 11.12345027923584, 22.123456789, 'aaa', 'aaa')]
+        tdSql.checkEqual(res, expected_res)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())