[TD-5722]test testing one column distinct with subtable

tests/pytest/fulltest.sh

@@ -212,6 +212,7 @@ python3 test.py -f tools/taosdemoAllTest/taosdemoTestInsertWithJson.py
 python3 test.py -f tools/taosdemoAllTest/taosdemoTestQueryWithJson.py
 
 #query
+python3 test.py -f query/distinctOneColTb.py 
 python3 ./test.py -f query/filter.py
 python3 ./test.py -f query/filterCombo.py
 python3 ./test.py -f query/queryNormal.py

tests/pytest/query/distinctOneColTb.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 -*-
+
+import sys
+import taos
+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())
+
+    def tb_all_query(self, num, sql="tb_all", where=""):
+        tdSql.query(
+            f"select distinct(ts2) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cint) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cbigint) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(csmallint) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(ctinyint) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cfloat) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cdouble) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cbool) from {sql} {where}")
+        if num < 2:
+            tdSql.checkRows(num)
+        else:
+            tdSql.checkRows(2)
+        tdSql.query(
+            f"select distinct(cbinary) from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cnchar) from {sql} {where}")
+        tdSql.checkRows(num)
+
+        tdSql.query(
+            f"select distinct(ts2) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cint) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cbigint) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(csmallint) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(ctinyint) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cfloat) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cdouble) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cbool) as a from {sql} {where}")
+        if num < 2:
+            tdSql.checkRows(num)
+        else:
+            tdSql.checkRows(2)
+        tdSql.query(
+            f"select distinct(cbinary) as a from {sql} {where}")
+        tdSql.checkRows(num)
+        tdSql.query(
+            f"select distinct(cnchar) as a from {sql} {where}")
+        tdSql.checkRows(num)
+
+
+    def tb_all_query_sub(self, num, sql="tb_all", where="",colName = "c1"):
+        tdSql.query(
+            f"select distinct({colName}) from {sql} {where}")
+        tdSql.checkRows(num)
+    
+    def errorCheck(self, sql='tb_all'):
+        tdSql.error(f"select distinct() from {sql}")
+        tdSql.error(f"select distinct from {sql}")
+        tdSql.error(f"distinct ts2 from {sql}")
+        tdSql.error(f"distinct(ts2) from {sql}")      
+        tdSql.error(f"distinct c1 from")
+        tdSql.error(f"distinct(c1) from")
+        tdSql.error(f"select distinct(ts2), avg(cint) from {sql}")
+        tdSql.error(f"select distinct ts2, avg(cint) from {sql}")
+
+        ## the following line is going to core dump 
+        #tdSql.error(f"select avg(cint), distinct(ts2)  from {sql}")
+        #tdSql.error(f"select avg(cint), distinct ts2  from {sql}")
+
+        tdSql.error(f"select distinct(ts2), cint from {sql}")
+        tdSql.error(f"select distinct ts2, cint from {sql}")
+        tdSql.error(f"select distinct(ts2) from {sql} group by cint")
+        tdSql.error(f"select distinct ts2 from {sql} group by cint")
+        tdSql.error(f"select distinct(ts2) from {sql} intervasl(1s)")
+        tdSql.error(f"select distinct ts2 from {sql} interval(1s)")
+        tdSql.error(f"select distinct(ts2) from {sql} slimit 1 soffset 1")
+        tdSql.error(f"select distinct ts2 from {sql} slimit 1 soffset 1")
+        tdSql.error(f"select distinct(ts2) from {sql} slimit 1")
+        tdSql.error(f"select distinct ts2 from {sql} slimit 1")
+
+        ##order by is not supported but not being prohibited
+        #tdSql.error(f"select distinct(ts2) from {sql} order by desc")
+        #tdSql.error(f"select distinct ts2 from {sql} order by desc")
+        #tdSql.error(f"select distinct(ts2) from {sql} order by asc")
+        #tdSql.error(f"select distinct ts2 from {sql} order by asc")
+
+        ##distinct should not use on first ts, but it can be applied
+        #tdSql.error(f"select distinct(ts) from {sql}")
+        #tdSql.error(f"select distinct ts from {sql}")
+
+        ##distinct should not be used in inner query, but error did not occur
+        # tdSql.error(f"select distinct(ts2) from (select distinct ts2 from {sql})")
+        # tdSql.error(f"select distinct ts2 from (select distinct ts2 from {sql})")
+
+
+    def query_all_tb(self, whereNum=0,inNum=0,maxNum=0,tbName="tb_all"):
+        self.tb_all_query(maxNum,sql=tbName)
+
+        self.tb_all_query(num=whereNum,where="where ts2 = '2021-08-06 18:01:50.550'",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cint = 1073741820",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cbigint = 1125899906842620",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where csmallint = 150",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where ctinyint = 10",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cfloat = 0.10",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cdouble = 0.130",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cbool = true",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cbinary = 'adc1'",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cnchar = '双精度浮'",sql=tbName)
+        self.tb_all_query(num=inNum,where="where ts2 in ( '2021-08-06 18:01:50.550' , '2021-08-06 18:01:50.551' )",sql=tbName)
+        self.tb_all_query(num=inNum,where="where cint in (1073741820,1073741821)",sql=tbName)
+        self.tb_all_query(num=inNum,where="where cbigint in (1125899906842620,1125899906842621)",sql=tbName)
+        self.tb_all_query(num=inNum,where="where csmallint in (150,151)",sql=tbName)
+        self.tb_all_query(num=inNum,where="where ctinyint in (10,11)",sql=tbName)
+        self.tb_all_query(num=inNum,where="where cfloat in (0.10,0.11)",sql=tbName)
+        self.tb_all_query(num=inNum,where="where cdouble in (0.130,0.131)",sql=tbName)
+        self.tb_all_query(num=inNum,where="where cbinary in ('adc0','adc1')",sql=tbName)
+        self.tb_all_query(num=inNum,where="where cnchar in ('双','双精度浮')",sql=tbName)
+        self.tb_all_query(num=inNum,where="where cbool in (0, 1)",sql=tbName)
+        self.tb_all_query(num=whereNum,where="where cnchar like '双__浮'",sql=tbName)
+        self.tb_all_query(num=maxNum,where="where cnchar like '双%'",sql=tbName)
+        self.tb_all_query(num=maxNum,where="where cbinary like 'adc_'",sql=tbName)
+        self.tb_all_query(num=maxNum,where="where cbinary like 'a%'",sql=tbName)
+        self.tb_all_query(num=whereNum,where="limit 1",sql=tbName)
+        self.tb_all_query(num=whereNum,where="limit 1 offset 1",sql=tbName)
+
+        #subquery
+        self.tb_all_query(num=maxNum,sql=f'(select * from {tbName})')
+
+        #subquery with where in outer query
+        self.tb_all_query(num=whereNum,where="where ts2 = '2021-08-06 18:01:50.550'",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cint = 1073741820",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cbigint = 1125899906842620",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where csmallint = 150",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where ctinyint = 10",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cfloat = 0.10",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cdouble = 0.130",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cbool = true",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cbinary = 'adc1'",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cnchar = '双精度浮'",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where ts2 in ( '2021-08-06 18:01:50.550' , '2021-08-06 18:01:50.551' )",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where cint in (1073741820,1073741821)",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where cbigint in (1125899906842620,1125899906842621)",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where csmallint in (150,151)",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where ctinyint in (10,11)",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where cfloat in (0.10,0.11)",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where cdouble in (0.130,0.131)",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where cbinary in ('adc0','adc1')",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where cnchar in ('双','双精度浮')",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=inNum,where="where cbool in (0, 1)",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="where cnchar like '双__浮'",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=maxNum,where="where cnchar like '双%'",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=maxNum,where="where cbinary like 'adc_'",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=maxNum,where="where cbinary like 'a%'",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="limit 1",sql=f'(select * from {tbName})')
+        self.tb_all_query(num=whereNum,where="limit 1 offset 1",sql=f'(select * from {tbName})')
+        #table query with inner query has error
+        tdSql.error('select distinct ts2 from (select )')
+        #table query with error option
+        self.errorCheck()
+
+
+    def run(self):
+        tdSql.prepare()
+
+        tdLog.notice(
+            "==============phase1 distinct(col1) with no values==========")
+        tdSql.execute("create stable if not exists stb_all (ts timestamp, ts2 timestamp, cint int, cbigint bigint, csmallint smallint, ctinyint tinyint,cfloat float, cdouble double, cbool bool, cbinary binary(32), cnchar nchar(32)) tags(tint int)")    
+        tdSql.execute(
+            "create table if not exists tb_all using stb_all tags(1)")
+        self.query_all_tb()
+
+        tdLog.notice(
+            "==============phase1 finished ==========\n\n\n")
+
+        tdLog.notice(
+            "==============phase2 distinct(col1) all values are null==========")
+        tdSql.execute(
+            "insert into tb_all values(now,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL)")
+        tdSql.execute(
+            "insert into tb_all values(now,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL)")
+        tdSql.execute(
+            "insert into tb_all values(now,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL)")
+
+        # normal query
+        self.query_all_tb()
+
+        tdLog.notice(
+            "==============phase2 finished ==========\n\n\n")
+
+
+        tdLog.notice(
+            "==============phase3 distinct with distinct values ==========\n\n\n")
+        tdSql.execute(
+            "insert into tb_all values(now+1s,'2021-08-06 18:01:50.550',1073741820,1125899906842620,150,10,0.10,0.130, true,'adc0','双')")
+        tdSql.execute(
+            "insert into tb_all values(now+2s,'2021-08-06 18:01:50.551',1073741821,1125899906842621,151,11,0.11,0.131,false,'adc1','双精度浮')")
+        tdSql.execute(
+            "insert into tb_all values(now+3s,'2021-08-06 18:01:50.552',1073741822,1125899906842622,152,12,0.12,0.132,NULL,'adc2','双精度')")
+        tdSql.execute(
+            "insert into tb_all values(now+4s,'2021-08-06 18:01:50.553',1073741823,1125899906842623,153,13,0.13,0.133,NULL,'adc3','双精')")
+        tdSql.execute(
+            "insert into tb_all values(now+5s,'2021-08-06 18:01:50.554',1073741824,1125899906842624,154,14,0.14,0.134,NULL,'adc4','双精度浮点型')")
+
+        # normal query
+        self.query_all_tb(maxNum=5,inNum=2,whereNum=1)
+
+        tdLog.notice(
+            "==============phase3 finishes ==========\n\n\n")
+
+        tdLog.notice(
+            "==============phase4 distinct with some values the same values ==========\n\n\n")
+        tdSql.execute(
+            "insert into tb_all values(now+10s,'2021-08-06 18:01:50.550',1073741820,1125899906842620,150,10,0.10,0.130, true,'adc0','双')")
+        tdSql.execute(
+            "insert into tb_all values(now+20s,'2021-08-06 18:01:50.551',1073741821,1125899906842621,151,11,0.11,0.131,false,'adc1','双精度浮')")
+        tdSql.execute(
+            "insert into tb_all values(now+30s,'2021-08-06 18:01:50.552',1073741822,1125899906842622,152,12,0.12,0.132,NULL,'adc2','双精度')")
+        tdSql.execute(
+            "insert into tb_all values(now+40s,'2021-08-06 18:01:50.553',1073741823,1125899906842623,153,13,0.13,0.133,NULL,'adc3','双精')")
+        tdSql.execute(
+            "insert into tb_all values(now+50s,'2021-08-06 18:01:50.554',1073741824,1125899906842624,154,14,0.14,0.134,NULL,'adc4','双精度浮点型')")
+        # normal query
+        self.query_all_tb(maxNum=5,inNum=2,whereNum=1)
+
+        tdLog.notice(
+            "==============phase4 finishes ==========\n\n\n")
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())