(query):add lower, upper, ltrim, and rtrim test case

tests/develop-test/2-query/lower_func.py

+import sys 
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import tdDnodes
+from math import inf
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1<shenglian zhou>: [TD-11204]Difference improvement that can ignore negative 
+        ''' 
+        return
+    
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn
+        
+    def restartTaosd(self, index=1, dbname="db"):
+        tdDnodes.stop(index)
+        tdDnodes.startWithoutSleep(index)
+        tdSql.execute(f"use lower_func")
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.execute("drop database if exists lower_func")
+        tdSql.execute("create database if not exists lower_func")
+        tdSql.execute('use lower_func')
+        tdSql.execute('create table stb1 (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tb1 using stb1 tags(1,'1',1.0);")
+
+        tdSql.execute("create table tb2 using stb1 tags(2,'2',2.0);")
+
+        tdSql.execute("create table tb3 using stb1 tags(3,'3',3.0);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"123","1234",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute("insert into tb1 values ('2021-11-11 09:00:01',true,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:02\',true,2,NULL,2,NULL,2,NULL,"234",NULL,2,NULL,2,NULL,\' XiaoBo \',NULL);')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:03\',false,NULL,3,NULL,3,NULL,3,NULL,"3456",NULL,3,NULL,3,NULL,\'bOxiaO\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:04\',true,4,4,4,4,4,4,"456","4567",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:05\',true,127,32767,2147483647,9223372036854775807,3.402823466e+38,1.79769e+308,"567","5678",254,65534,4294967294,9223372036854775807,\'27\',\'278\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:06\',true,-127,-32767,-2147483647,-9223372036854775807,-3.402823466e+38,-1.79769e+308,"678","6789",0,0,0,0,\'\',\'\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('create table tbn (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30));')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.error('select lower(*) from tb1;')
+
+        tdSql.error('select lower(*) + 1 as a from tb1;')
+
+        tdSql.error('select lower(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select lower(*) from tb1;')
+
+        tdSql.error('select lower(c1) from tb1;')
+
+        tdSql.error('select lower(13) from tb1;')
+
+        tdSql.error('select lower(c1) from tb1;')
+
+        tdSql.error('select lower(c2) from tb1;')
+
+        tdSql.error('select lower(c3) from tb1;')
+
+        tdSql.error('select lower(c4) from tb1;')
+
+        tdSql.error('select lower(c5) from tb1;')
+
+        tdSql.error('select lower(c6) from tb1;')
+
+        tdSql.error('select lower(c7) from tb1;')
+
+        tdSql.query('select lower(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select lower(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  wade zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select lower(c10) from tb1;')
+
+        tdSql.error('select lower(c11) from tb1;')
+
+        tdSql.error('select lower(c12) from tb1;')
+
+        tdSql.error('select lower(c13) from tb1;')
+
+        tdSql.query("select lower('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct lower(123) from tb1;')
+
+        tdSql.error('select lower(t1) from stb1;')
+
+        tdSql.error('select lower(c8),avg(c3) from tb1;')
+
+        tdSql.error('select lower(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select lower(c8),lower(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(0, 1, '  taosdata  ')
+        tdSql.checkData(1, 0, 'bcd')
+        tdSql.checkData(1, 1, '  jeff tao')
+        tdSql.checkData(2, 0, 'cde')
+        tdSql.checkData(2, 1, '  steven li')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(3, 1, '  wade zhang')
+        tdSql.checkData(4, 0, 'efg')
+        tdSql.checkData(4, 1, ' simonguan')
+        tdSql.checkData(5, 0, 'f gh')
+        tdSql.checkData(5, 1, ' ph. d. liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, ' hongze cheng ')
+
+        tdSql.error('select lower(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select lower(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select lower("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'abc')
+        tdSql.checkData(2, 0, 'abc')
+        tdSql.checkData(3, 0, 'abc')
+        tdSql.checkData(4, 0, 'abc')
+        tdSql.checkData(5, 0, 'abc')
+        tdSql.checkData(6, 0, 'abc')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  wade zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select lower((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  wade zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select lower('11')+c2 from tb1;")
+
+        tdSql.error('select lower(c8)+c2 from tb1;')
+
+        tdSql.error('select lower(c14)+11 from tb1;')
+
+        tdSql.query('select lower(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select lower(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select lower(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select lower(c8),lower(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  wade zhang')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  wade zhang')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select lower(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, '  wade zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, ' xiaobo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '  taosdata  ')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  wade zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 xiaobo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  taosdata  ')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  wade zhang')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 xiaobo ')
+
+        tdSql.query('select lower(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  wade zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  taosdata  ')
+        tdSql.checkData(8, 0, '  jeff tao')
+        tdSql.checkData(9, 0, '  steven li')
+        tdSql.checkData(10, 0, '  wade zhang')
+        tdSql.checkData(11, 0, ' simonguan')
+        tdSql.checkData(12, 0, ' ph. d. liao')
+        tdSql.checkData(13, 0, ' hongze cheng ')
+
+        tdSql.query('select lower(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select lower(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select lower(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'boxiao')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, ' wade zhang  ')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, '  tdengine  ')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'jeff tao')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'steven li')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, ' wade zhang  ')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'shengliang guan  ')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'haojun liao  ')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, '  hongzecheng')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select lower(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'jeff tao')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'steven li')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, ' wade zhang  ')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'shengliang guan  ')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'haojun liao  ')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, '  hongzecheng')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select lower(c8),lower(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(0, 1, '  taosdata  ')
+        tdSql.checkData(1, 0, 'bcd')
+        tdSql.checkData(1, 1, '  jeff tao')
+        tdSql.checkData(2, 0, 'cde')
+        tdSql.checkData(2, 1, '  steven li')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(3, 1, '  wade zhang')
+        tdSql.checkData(4, 0, 'efg')
+        tdSql.checkData(4, 1, ' simonguan')
+        tdSql.checkData(5, 0, 'f gh')
+        tdSql.checkData(5, 1, ' ph. d. liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, ' hongze cheng ')
+
+        tdSql.query('select lower(c8),lower(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ghi  ')
+        tdSql.checkData(0, 1, ' hongze cheng ')
+        tdSql.checkData(1, 0, 'f gh')
+        tdSql.checkData(1, 1, ' ph. d. liao')
+        tdSql.checkData(2, 0, 'efg')
+        tdSql.checkData(2, 1, ' simonguan')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(3, 1, '  wade zhang')
+        tdSql.checkData(4, 0, 'cde')
+        tdSql.checkData(4, 1, '  steven li')
+        tdSql.checkData(5, 0, 'bcd')
+        tdSql.checkData(5, 1, '  jeff tao')
+        tdSql.checkData(6, 0, 'abc')
+        tdSql.checkData(6, 1, '  taosdata  ')
+
+        tdSql.query('select lower(lower(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'bcd')
+        tdSql.checkData(2, 0, 'cde')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(4, 0, 'efg')
+        tdSql.checkData(5, 0, 'f gh')
+        tdSql.checkData(6, 0, 'ghi  ')
+
+        tdSql.query('select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select lower(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  wade zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  taosdata  ')
+        tdSql.checkData(8, 0, '  jeff tao')
+        tdSql.checkData(9, 0, '  steven li')
+        tdSql.checkData(10, 0, '  wade zhang')
+        tdSql.checkData(11, 0, ' simonguan')
+        tdSql.checkData(12, 0, ' ph. d. liao')
+        tdSql.checkData(13, 0, ' hongze cheng ')
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select lower(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select lower(tb1.c15),lower(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(0, 1, '  tdengine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'jeff tao')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'steven li')
+        tdSql.checkData(3, 0, 'boxiao')
+        tdSql.checkData(3, 1, ' wade zhang  ')
+        tdSql.checkData(4, 0, ' wade zhang  ')
+        tdSql.checkData(4, 1, 'shengliang guan  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'haojun liao  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  hongzecheng')
+
+        tdSql.query('select lower(c15) from tb1 union all select lower(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'boxiao')
+        tdSql.checkData(4, 0, ' wade zhang  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  tdengine  ')
+        tdSql.checkData(8, 0, 'jeff tao')
+        tdSql.checkData(9, 0, 'steven li')
+        tdSql.checkData(10, 0, ' wade zhang  ')
+        tdSql.checkData(11, 0, 'shengliang guan  ')
+        tdSql.checkData(12, 0, 'haojun liao  ')
+        tdSql.checkData(13, 0, '  hongzecheng')
+
+
+        tdSql.execute('create table stba (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tba1 using stba tags(1,'1',1.0);")
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:00\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:01\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:02\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:04\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:05\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:06\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:07\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:08\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:09\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='lower_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:10\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:11\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:12\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:13\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:14\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:15\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:16\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:17\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:18\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:19\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='lower_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:20\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:21\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:22\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:23\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:24\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:25\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:26\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:27\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:28\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:29\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        tdSql.error('select lower(*) from tb1;')
+
+        tdSql.error('select lower(*) + 1 as a from tb1;')
+
+        tdSql.error('select lower(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select lower(*) from tb1;')
+
+        tdSql.error('select lower(c1) from tb1;')
+
+        tdSql.error('select lower(13) from tb1;')
+
+        tdSql.error('select lower(c1) from tb1;')
+
+        tdSql.error('select lower(c2) from tb1;')
+
+        tdSql.error('select lower(c3) from tb1;')
+
+        tdSql.error('select lower(c4) from tb1;')
+
+        tdSql.error('select lower(c5) from tb1;')
+
+        tdSql.error('select lower(c6) from tb1;')
+
+        tdSql.error('select lower(c7) from tb1;')
+
+        tdSql.query('select lower(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select lower(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  wade zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select lower(c10) from tb1;')
+
+        tdSql.error('select lower(c11) from tb1;')
+
+        tdSql.error('select lower(c12) from tb1;')
+
+        tdSql.error('select lower(c13) from tb1;')
+
+        tdSql.query("select lower('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct lower(123) from tb1;')
+
+        tdSql.error('select lower(t1) from stb1;')
+
+        tdSql.error('select lower(c8),avg(c3) from tb1;')
+
+        tdSql.error('select lower(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select lower(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select lower(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select lower(c8),lower(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(0, 1, '  taosdata  ')
+        tdSql.checkData(1, 0, 'bcd')
+        tdSql.checkData(1, 1, '  jeff tao')
+        tdSql.checkData(2, 0, 'cde')
+        tdSql.checkData(2, 1, '  steven li')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(3, 1, '  wade zhang')
+        tdSql.checkData(4, 0, 'efg')
+        tdSql.checkData(4, 1, ' simonguan')
+        tdSql.checkData(5, 0, 'f gh')
+        tdSql.checkData(5, 1, ' ph. d. liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, ' hongze cheng ')
+
+        tdSql.error('select lower(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select lower(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select lower("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'abc')
+        tdSql.checkData(2, 0, 'abc')
+        tdSql.checkData(3, 0, 'abc')
+        tdSql.checkData(4, 0, 'abc')
+        tdSql.checkData(5, 0, 'abc')
+        tdSql.checkData(6, 0, 'abc')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  wade zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select lower((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  wade zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select lower('11')+c2 from tb1;")
+
+        tdSql.error('select lower(c8)+c2 from tb1;')
+
+        tdSql.error('select lower(c14)+11 from tb1;')
+
+        tdSql.query('select lower(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select lower(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select lower(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select lower(c8),lower(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  wade zhang')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  wade zhang')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select lower(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, '  wade zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, ' xiaobo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '  taosdata  ')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  wade zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 xiaobo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  taosdata  ')
+
+        tdSql.query('select lower(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  wade zhang')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 xiaobo ')
+
+        tdSql.query('select lower(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  wade zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  taosdata  ')
+        tdSql.checkData(8, 0, '  jeff tao')
+        tdSql.checkData(9, 0, '  steven li')
+        tdSql.checkData(10, 0, '  wade zhang')
+        tdSql.checkData(11, 0, ' simonguan')
+        tdSql.checkData(12, 0, ' ph. d. liao')
+        tdSql.checkData(13, 0, ' hongze cheng ')
+
+        tdSql.query('select lower(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select lower(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select lower(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'boxiao')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, ' wade zhang  ')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, '  tdengine  ')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'jeff tao')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'steven li')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, ' wade zhang  ')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'shengliang guan  ')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'haojun liao  ')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, '  hongzecheng')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select lower(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'jeff tao')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'steven li')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, ' wade zhang  ')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'shengliang guan  ')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'haojun liao  ')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, '  hongzecheng')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select lower(c8),lower(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(0, 1, '  taosdata  ')
+        tdSql.checkData(1, 0, 'bcd')
+        tdSql.checkData(1, 1, '  jeff tao')
+        tdSql.checkData(2, 0, 'cde')
+        tdSql.checkData(2, 1, '  steven li')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(3, 1, '  wade zhang')
+        tdSql.checkData(4, 0, 'efg')
+        tdSql.checkData(4, 1, ' simonguan')
+        tdSql.checkData(5, 0, 'f gh')
+        tdSql.checkData(5, 1, ' ph. d. liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, ' hongze cheng ')
+
+        tdSql.query('select lower(c8),lower(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ghi  ')
+        tdSql.checkData(0, 1, ' hongze cheng ')
+        tdSql.checkData(1, 0, 'f gh')
+        tdSql.checkData(1, 1, ' ph. d. liao')
+        tdSql.checkData(2, 0, 'efg')
+        tdSql.checkData(2, 1, ' simonguan')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(3, 1, '  wade zhang')
+        tdSql.checkData(4, 0, 'cde')
+        tdSql.checkData(4, 1, '  steven li')
+        tdSql.checkData(5, 0, 'bcd')
+        tdSql.checkData(5, 1, '  jeff tao')
+        tdSql.checkData(6, 0, 'abc')
+        tdSql.checkData(6, 1, '  taosdata  ')
+
+        tdSql.query('select lower(lower(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'bcd')
+        tdSql.checkData(2, 0, 'cde')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(4, 0, 'efg')
+        tdSql.checkData(5, 0, 'f gh')
+        tdSql.checkData(6, 0, 'ghi  ')
+
+        tdSql.query('select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select lower(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  taosdata  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' xiaobo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  wade zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  taosdata  ')
+        tdSql.checkData(8, 0, '  jeff tao')
+        tdSql.checkData(9, 0, '  steven li')
+        tdSql.checkData(10, 0, '  wade zhang')
+        tdSql.checkData(11, 0, ' simonguan')
+        tdSql.checkData(12, 0, ' ph. d. liao')
+        tdSql.checkData(13, 0, ' hongze cheng ')
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select lower(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select lower(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select lower(tb1.c15),lower(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(0, 1, '  tdengine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'jeff tao')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'steven li')
+        tdSql.checkData(3, 0, 'boxiao')
+        tdSql.checkData(3, 1, ' wade zhang  ')
+        tdSql.checkData(4, 0, ' wade zhang  ')
+        tdSql.checkData(4, 1, 'shengliang guan  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'haojun liao  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  hongzecheng')
+
+        tdSql.query('select lower(c15) from tb1 union all select lower(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tdengine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'boxiao')
+        tdSql.checkData(4, 0, ' wade zhang  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  tdengine  ')
+        tdSql.checkData(8, 0, 'jeff tao')
+        tdSql.checkData(9, 0, 'steven li')
+        tdSql.checkData(10, 0, ' wade zhang  ')
+        tdSql.checkData(11, 0, 'shengliang guan  ')
+        tdSql.checkData(12, 0, 'haojun liao  ')
+        tdSql.checkData(13, 0, '  hongzecheng')
+
+        tdSql.query('select lower(stb1.c14),lower(stba.c15) from stb1,stba where stb1.t1=stba.t1 and stb1.ts=stba.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  taosdata  ')
+        tdSql.checkData(0, 1, '  tdengine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'jeff tao')
+        tdSql.checkData(2, 0, ' xiaobo ')
+        tdSql.checkData(2, 1, 'steven li')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, ' wade zhang  ')
+        tdSql.checkData(4, 0, '  wade zhang')
+        tdSql.checkData(4, 1, 'shengliang guan  ')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(5, 1, 'haojun liao  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  hongzecheng')
+
+        tdSql.error('select lower(c14) as a from stb1 union all select lower(c15) as a from stba;')
+
+        tdSql.query('select lower(c8) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'bcd')
+        tdSql.checkData(2, 0, 'cde')
+        tdSql.checkData(3, 0, 'def')
+        tdSql.checkData(4, 0, 'efg')
+        tdSql.checkData(5, 0, 'f gh')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(7, 0, 'ghi  ')
+        tdSql.checkData(8, 0, ' taos data  ')
+        tdSql.checkData(9, 0, ' taos data  ')
+        tdSql.checkData(10, 0, 'abc')
+        tdSql.checkData(11, 0, 'bcd')
+        tdSql.checkData(12, 0, 'cde')
+        tdSql.checkData(13, 0, 'def')
+        tdSql.checkData(14, 0, 'efg')
+        tdSql.checkData(15, 0, 'f gh')
+        tdSql.checkData(16, 0, 'ghi  ')
+        tdSql.checkData(17, 0, 'ghi  ')
+        tdSql.checkData(18, 0, ' taos data  ')
+        tdSql.checkData(19, 0, ' taos data  ')
+        tdSql.checkData(20, 0, 'abc')
+        tdSql.checkData(21, 0, 'bcd')
+        tdSql.checkData(22, 0, 'cde')
+        tdSql.checkData(23, 0, 'def')
+        tdSql.checkData(24, 0, 'efg')
+        tdSql.checkData(25, 0, 'f gh')
+        tdSql.checkData(26, 0, 'ghi  ')
+        tdSql.checkData(27, 0, 'ghi  ')
+        tdSql.checkData(28, 0, ' taos data  ')
+        tdSql.checkData(29, 0, ' taos data  ')
+
+        tdSql.query('select lower(c9) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'abcd')
+        tdSql.checkData(1, 0, 'bcde')
+        tdSql.checkData(2, 0, 'cdef')
+        tdSql.checkData(3, 0, 'defg')
+        tdSql.checkData(4, 0, 'efgh')
+        tdSql.checkData(5, 0, ' fghk ')
+        tdSql.checkData(6, 0, '  ghij ')
+        tdSql.checkData(7, 0, '  涛思数据 ')
+        tdSql.checkData(8, 0, '  涛思数据 ')
+        tdSql.checkData(9, 0, '  涛思数据2022 ')
+        tdSql.checkData(10, 0, 'abcd')
+        tdSql.checkData(11, 0, 'bcde')
+        tdSql.checkData(12, 0, 'cdef')
+        tdSql.checkData(13, 0, 'defg')
+        tdSql.checkData(14, 0, 'efgh')
+        tdSql.checkData(15, 0, ' fghk ')
+        tdSql.checkData(16, 0, '  ghij ')
+        tdSql.checkData(17, 0, '  涛思数据 ')
+        tdSql.checkData(18, 0, '  涛思数据 ')
+        tdSql.checkData(19, 0, '  涛思数据2022 ')
+        tdSql.checkData(20, 0, 'abcd')
+        tdSql.checkData(21, 0, 'bcde')
+        tdSql.checkData(22, 0, 'cdef')
+        tdSql.checkData(23, 0, 'defg')
+        tdSql.checkData(24, 0, 'efgh')
+        tdSql.checkData(25, 0, ' fghk ')
+        tdSql.checkData(26, 0, '  ghij ')
+        tdSql.checkData(27, 0, '  涛思数据 ')
+        tdSql.checkData(28, 0, '  涛思数据 ')
+        tdSql.checkData(29, 0, '  涛思数据2022 ')
+
+        tdSql.query('select lower(cast(min(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select lower(cast(max(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9')
+
+        tdSql.query('select lower(cast(count(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '30')
+
+        tdSql.query('select lower(cast(sum(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '135')
+
+        tdSql.query('select lower(cast(avg(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.500000')
+
+        tdSql.query('select lower(cast(percentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.900000')
+
+        tdSql.query('select lower(cast(apercentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select lower(cast(stddev(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '2.872281')
+
+        tdSql.query('select lower(cast(spread(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9.000000')
+
+        tdSql.query('select lower(cast(twa(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.637931')
+
+        tdSql.error('select lower(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.query('select lower(cast(interp(c2) as binary(20))) from tba1 every(1s)')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 1, '1')
+        tdSql.checkData(1, 0, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 1, '2')
+        tdSql.checkData(2, 0, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 1, '3')
+        tdSql.checkData(3, 0, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 1, '4')
+        tdSql.checkData(4, 0, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 1, '5')
+        tdSql.checkData(5, 0, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 1, '6')
+        tdSql.checkData(6, 0, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 1, '7')
+        tdSql.checkData(7, 0, datetime.datetime(2021, 11, 11, 9, 0, 7))
+        tdSql.checkData(7, 1, '8')
+        tdSql.checkData(8, 0, datetime.datetime(2021, 11, 11, 9, 0, 8))
+        tdSql.checkData(8, 1, '9')
+        tdSql.checkData(9, 0, datetime.datetime(2021, 11, 11, 9, 0, 9))
+        tdSql.checkData(9, 1, '0')
+        tdSql.checkData(10, 0, datetime.datetime(2021, 11, 11, 9, 0, 10))
+        tdSql.checkData(10, 1, '1')
+        tdSql.checkData(11, 0, datetime.datetime(2021, 11, 11, 9, 0, 11))
+        tdSql.checkData(11, 1, '2')
+        tdSql.checkData(12, 0, datetime.datetime(2021, 11, 11, 9, 0, 12))
+        tdSql.checkData(12, 1, '3')
+        tdSql.checkData(13, 0, datetime.datetime(2021, 11, 11, 9, 0, 13))
+        tdSql.checkData(13, 1, '4')
+        tdSql.checkData(14, 0, datetime.datetime(2021, 11, 11, 9, 0, 14))
+        tdSql.checkData(14, 1, '5')
+        tdSql.checkData(15, 0, datetime.datetime(2021, 11, 11, 9, 0, 15))
+        tdSql.checkData(15, 1, '6')
+        tdSql.checkData(16, 0, datetime.datetime(2021, 11, 11, 9, 0, 16))
+        tdSql.checkData(16, 1, '7')
+        tdSql.checkData(17, 0, datetime.datetime(2021, 11, 11, 9, 0, 17))
+        tdSql.checkData(17, 1, '8')
+        tdSql.checkData(18, 0, datetime.datetime(2021, 11, 11, 9, 0, 18))
+        tdSql.checkData(18, 1, '9')
+        tdSql.checkData(19, 0, datetime.datetime(2021, 11, 11, 9, 0, 19))
+        tdSql.checkData(19, 1, '0')
+        tdSql.checkData(20, 0, datetime.datetime(2021, 11, 11, 9, 0, 20))
+        tdSql.checkData(20, 1, '1')
+        tdSql.checkData(21, 0, datetime.datetime(2021, 11, 11, 9, 0, 21))
+        tdSql.checkData(21, 1, '2')
+        tdSql.checkData(22, 0, datetime.datetime(2021, 11, 11, 9, 0, 22))
+        tdSql.checkData(22, 1, '3')
+        tdSql.checkData(23, 0, datetime.datetime(2021, 11, 11, 9, 0, 23))
+        tdSql.checkData(23, 1, '4')
+        tdSql.checkData(24, 0, datetime.datetime(2021, 11, 11, 9, 0, 24))
+        tdSql.checkData(24, 1, '5')
+        tdSql.checkData(25, 0, datetime.datetime(2021, 11, 11, 9, 0, 25))
+        tdSql.checkData(25, 1, '6')
+        tdSql.checkData(26, 0, datetime.datetime(2021, 11, 11, 9, 0, 26))
+        tdSql.checkData(26, 1, '7')
+        tdSql.checkData(27, 0, datetime.datetime(2021, 11, 11, 9, 0, 27))
+        tdSql.checkData(27, 1, '8')
+        tdSql.checkData(28, 0, datetime.datetime(2021, 11, 11, 9, 0, 28))
+        tdSql.checkData(28, 1, '9')
+        tdSql.checkData(29, 0, datetime.datetime(2021, 11, 11, 9, 0, 29))
+        tdSql.checkData(29, 1, '0')
+
+        tdSql.error('select lower(cast(interp(c2) as binary(20))) stba every(1s) group by tbname;')
+
+        tdSql.query('select lower(cast(elapsed(ts) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '29000.000000')
+
+        tdSql.query('select lower(cast(rate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.896552')
+
+        tdSql.query('select lower(cast(irate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select lower(cast(first(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '1')
+
+        tdSql.query('select lower(cast(last(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select lower(cast(last_row(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.error('select lower(cast(top(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(bottom(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(derivative(c2, 1s, 0) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(diff(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(csum(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(mavg(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(sample(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select lower(cast(_block_dist() as binary(20))) from tba1;')
+
+
+        tdSql.execute('drop database lower_func')
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/develop-test/2-query/ltrim_func.py

+import sys 
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import tdDnodes
+from math import inf
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1<shenglian zhou>: [TD-11204]Difference improvement that can ignore negative 
+        ''' 
+        return
+    
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn
+        
+    def restartTaosd(self, index=1, dbname="db"):
+        tdDnodes.stop(index)
+        tdDnodes.startWithoutSleep(index)
+        tdSql.execute(f"use ltrim_func")
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.execute("drop database if exists ltrim_func")
+        tdSql.execute("create database if not exists ltrim_func")
+        tdSql.execute('use ltrim_func')
+        tdSql.execute('create table stb1 (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tb1 using stb1 tags(1,'1',1.0);")
+
+        tdSql.execute("create table tb2 using stb1 tags(2,'2',2.0);")
+
+        tdSql.execute("create table tb3 using stb1 tags(3,'3',3.0);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"123","1234",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute("insert into tb1 values ('2021-11-11 09:00:01',true,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:02\',true,2,NULL,2,NULL,2,NULL,"234",NULL,2,NULL,2,NULL,\' XiaoBo \',NULL);')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:03\',false,NULL,3,NULL,3,NULL,3,NULL,"3456",NULL,3,NULL,3,NULL,\'bOxiaO\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:04\',true,4,4,4,4,4,4,"456","4567",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:05\',true,127,32767,2147483647,9223372036854775807,3.402823466e+38,1.79769e+308,"567","5678",254,65534,4294967294,9223372036854775807,\'27\',\'278\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:06\',true,-127,-32767,-2147483647,-9223372036854775807,-3.402823466e+38,-1.79769e+308,"678","6789",0,0,0,0,\'\',\'\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('create table tbn (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30));')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.error('select ltrim(*) from tb1;')
+
+        tdSql.error('select ltrim(*) + 1 as a from tb1;')
+
+        tdSql.error('select ltrim(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select ltrim(*) from tb1;')
+
+        tdSql.error('select ltrim(c1) from tb1;')
+
+        tdSql.error('select ltrim(13) from tb1;')
+
+        tdSql.error('select ltrim(c1) from tb1;')
+
+        tdSql.error('select ltrim(c2) from tb1;')
+
+        tdSql.error('select ltrim(c3) from tb1;')
+
+        tdSql.error('select ltrim(c4) from tb1;')
+
+        tdSql.error('select ltrim(c5) from tb1;')
+
+        tdSql.error('select ltrim(c6) from tb1;')
+
+        tdSql.error('select ltrim(c7) from tb1;')
+
+        tdSql.query('select ltrim(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select ltrim(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, 'XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select ltrim(c10) from tb1;')
+
+        tdSql.error('select ltrim(c11) from tb1;')
+
+        tdSql.error('select ltrim(c12) from tb1;')
+
+        tdSql.error('select ltrim(c13) from tb1;')
+
+        tdSql.query("select ltrim('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct ltrim(123) from tb1;')
+
+        tdSql.error('select ltrim(t1) from stb1;')
+
+        tdSql.error('select ltrim(c8),avg(c3) from tb1;')
+
+        tdSql.error('select ltrim(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select ltrim(c8),ltrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, 'TaosdAta  ')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, 'jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, 'Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, 'Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, 'simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, 'Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, 'hongZe cheng ')
+
+        tdSql.error('select ltrim(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select ltrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select ltrim("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'abc')
+        tdSql.checkData(2, 0, 'abc')
+        tdSql.checkData(3, 0, 'abc')
+        tdSql.checkData(4, 0, 'abc')
+        tdSql.checkData(5, 0, 'abc')
+        tdSql.checkData(6, 0, 'abc')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select ltrim((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select ltrim('11')+c2 from tb1;")
+
+        tdSql.error('select ltrim(c8)+c2 from tb1;')
+
+        tdSql.error('select ltrim(c14)+11 from tb1;')
+
+        tdSql.query('select ltrim(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select ltrim(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select ltrim(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select ltrim(c8),ltrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select ltrim(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, 'Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'XiaoBo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, 'TaosdAta  ')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 XiaoBo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  TaosdAta  ')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  Wade Zhang')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo ')
+
+        tdSql.query('select ltrim(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, 'XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, 'TaosdAta  ')
+        tdSql.checkData(8, 0, 'jeFF tAo')
+        tdSql.checkData(9, 0, 'Steven Li')
+        tdSql.checkData(10, 0, 'Wade Zhang')
+        tdSql.checkData(11, 0, 'simOnGuan')
+        tdSql.checkData(12, 0, 'Ph. D. Liao')
+        tdSql.checkData(13, 0, 'hongZe cheng ')
+
+        tdSql.query('select ltrim(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select ltrim(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select ltrim(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, 'Wade ZhAng  ')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, 'tDenGine  ')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, 'Wade ZhAng  ')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'shengliang guaN  ')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'haojun Liao  ')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, 'hongzecheng')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select ltrim(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'Jeff Tao')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'SteVeN LI')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, 'Wade ZhAng  ')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'shengliang guaN  ')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'haojun Liao  ')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, 'hongzecheng')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select ltrim(c8),ltrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, 'TaosdAta  ')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, 'jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, 'Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, 'Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, 'simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, 'Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, 'hongZe cheng ')
+
+        tdSql.query('select ltrim(c8),ltrim(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ghi  ')
+        tdSql.checkData(0, 1, 'hongZe cheng ')
+        tdSql.checkData(1, 0, 'f Gh')
+        tdSql.checkData(1, 1, 'Ph. D. Liao')
+        tdSql.checkData(2, 0, 'efG')
+        tdSql.checkData(2, 1, 'simOnGuan')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, 'Wade Zhang')
+        tdSql.checkData(4, 0, 'cdE')
+        tdSql.checkData(4, 1, 'Steven Li')
+        tdSql.checkData(5, 0, 'Bcd')
+        tdSql.checkData(5, 1, 'jeFF tAo')
+        tdSql.checkData(6, 0, 'aBc')
+        tdSql.checkData(6, 1, 'TaosdAta  ')
+
+        tdSql.query('select ltrim(ltrim(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(6, 0, 'ghi  ')
+
+        tdSql.query('select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select ltrim(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, 'XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, 'TaosdAta  ')
+        tdSql.checkData(8, 0, 'jeFF tAo')
+        tdSql.checkData(9, 0, 'Steven Li')
+        tdSql.checkData(10, 0, 'Wade Zhang')
+        tdSql.checkData(11, 0, 'simOnGuan')
+        tdSql.checkData(12, 0, 'Ph. D. Liao')
+        tdSql.checkData(13, 0, 'hongZe cheng ')
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select ltrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select ltrim(tb1.c15),ltrim(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(0, 1, 'tDenGine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'Jeff Tao')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'SteVeN LI')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, 'Wade ZhAng  ')
+        tdSql.checkData(4, 0, 'Wade ZhAng  ')
+        tdSql.checkData(4, 1, 'shengliang guaN  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'haojun Liao  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'hongzecheng')
+
+        tdSql.query('select ltrim(c15) from tb1 union all select ltrim(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(4, 0, 'Wade ZhAng  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, 'tDenGine  ')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(10, 0, 'Wade ZhAng  ')
+        tdSql.checkData(11, 0, 'shengliang guaN  ')
+        tdSql.checkData(12, 0, 'haojun Liao  ')
+        tdSql.checkData(13, 0, 'hongzecheng')
+
+
+        tdSql.execute('create table stba (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tba1 using stba tags(1,'1',1.0);")
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:00\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:01\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:02\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:04\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:05\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:06\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:07\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:08\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:09\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='ltrim_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:10\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:11\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:12\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:13\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:14\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:15\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:16\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:17\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:18\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:19\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='ltrim_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:20\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:21\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:22\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:23\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:24\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:25\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:26\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:27\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:28\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:29\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        tdSql.error('select ltrim(*) from tb1;')
+
+        tdSql.error('select ltrim(*) + 1 as a from tb1;')
+
+        tdSql.error('select ltrim(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select ltrim(*) from tb1;')
+
+        tdSql.error('select ltrim(c1) from tb1;')
+
+        tdSql.error('select ltrim(13) from tb1;')
+
+        tdSql.error('select ltrim(c1) from tb1;')
+
+        tdSql.error('select ltrim(c2) from tb1;')
+
+        tdSql.error('select ltrim(c3) from tb1;')
+
+        tdSql.error('select ltrim(c4) from tb1;')
+
+        tdSql.error('select ltrim(c5) from tb1;')
+
+        tdSql.error('select ltrim(c6) from tb1;')
+
+        tdSql.error('select ltrim(c7) from tb1;')
+
+        tdSql.query('select ltrim(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select ltrim(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, 'XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select ltrim(c10) from tb1;')
+
+        tdSql.error('select ltrim(c11) from tb1;')
+
+        tdSql.error('select ltrim(c12) from tb1;')
+
+        tdSql.error('select ltrim(c13) from tb1;')
+
+        tdSql.query("select ltrim('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct ltrim(123) from tb1;')
+
+        tdSql.error('select ltrim(t1) from stb1;')
+
+        tdSql.error('select ltrim(c8),avg(c3) from tb1;')
+
+        tdSql.error('select ltrim(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select ltrim(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select ltrim(c8),ltrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, 'TaosdAta  ')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, 'jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, 'Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, 'Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, 'simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, 'Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, 'hongZe cheng ')
+
+        tdSql.error('select ltrim(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select ltrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select ltrim("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'abc')
+        tdSql.checkData(2, 0, 'abc')
+        tdSql.checkData(3, 0, 'abc')
+        tdSql.checkData(4, 0, 'abc')
+        tdSql.checkData(5, 0, 'abc')
+        tdSql.checkData(6, 0, 'abc')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select ltrim((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select ltrim('11')+c2 from tb1;")
+
+        tdSql.error('select ltrim(c8)+c2 from tb1;')
+
+        tdSql.error('select ltrim(c14)+11 from tb1;')
+
+        tdSql.query('select ltrim(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select ltrim(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select ltrim(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select ltrim(c8),ltrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select ltrim(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, 'Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'XiaoBo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, 'TaosdAta  ')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 XiaoBo ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  TaosdAta  ')
+
+        tdSql.query('select ltrim(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  Wade Zhang')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo ')
+
+        tdSql.query('select ltrim(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, 'XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, 'TaosdAta  ')
+        tdSql.checkData(8, 0, 'jeFF tAo')
+        tdSql.checkData(9, 0, 'Steven Li')
+        tdSql.checkData(10, 0, 'Wade Zhang')
+        tdSql.checkData(11, 0, 'simOnGuan')
+        tdSql.checkData(12, 0, 'Ph. D. Liao')
+        tdSql.checkData(13, 0, 'hongZe cheng ')
+
+        tdSql.query('select ltrim(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select ltrim(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select ltrim(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, 'Wade ZhAng  ')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, 'tDenGine  ')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, 'Wade ZhAng  ')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'shengliang guaN  ')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'haojun Liao  ')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, 'hongzecheng')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select ltrim(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'Jeff Tao')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'SteVeN LI')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, 'Wade ZhAng  ')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'shengliang guaN  ')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'haojun Liao  ')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, 'hongzecheng')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select ltrim(c8),ltrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, 'TaosdAta  ')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, 'jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, 'Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, 'Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, 'simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, 'Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(6, 1, 'hongZe cheng ')
+
+        tdSql.query('select ltrim(c8),ltrim(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ghi  ')
+        tdSql.checkData(0, 1, 'hongZe cheng ')
+        tdSql.checkData(1, 0, 'f Gh')
+        tdSql.checkData(1, 1, 'Ph. D. Liao')
+        tdSql.checkData(2, 0, 'efG')
+        tdSql.checkData(2, 1, 'simOnGuan')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, 'Wade Zhang')
+        tdSql.checkData(4, 0, 'cdE')
+        tdSql.checkData(4, 1, 'Steven Li')
+        tdSql.checkData(5, 0, 'Bcd')
+        tdSql.checkData(5, 1, 'jeFF tAo')
+        tdSql.checkData(6, 0, 'aBc')
+        tdSql.checkData(6, 1, 'TaosdAta  ')
+
+        tdSql.query('select ltrim(ltrim(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(6, 0, 'ghi  ')
+
+        tdSql.query('select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select ltrim(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'TaosdAta  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, 'XiaoBo ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, 'Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, 'TaosdAta  ')
+        tdSql.checkData(8, 0, 'jeFF tAo')
+        tdSql.checkData(9, 0, 'Steven Li')
+        tdSql.checkData(10, 0, 'Wade Zhang')
+        tdSql.checkData(11, 0, 'simOnGuan')
+        tdSql.checkData(12, 0, 'Ph. D. Liao')
+        tdSql.checkData(13, 0, 'hongZe cheng ')
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select ltrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select ltrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select ltrim(tb1.c15),ltrim(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(0, 1, 'tDenGine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'Jeff Tao')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'SteVeN LI')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, 'Wade ZhAng  ')
+        tdSql.checkData(4, 0, 'Wade ZhAng  ')
+        tdSql.checkData(4, 1, 'shengliang guaN  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'haojun Liao  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'hongzecheng')
+
+        tdSql.query('select ltrim(c15) from tb1 union all select ltrim(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, 'tDenGine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(4, 0, 'Wade ZhAng  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, 'tDenGine  ')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(10, 0, 'Wade ZhAng  ')
+        tdSql.checkData(11, 0, 'shengliang guaN  ')
+        tdSql.checkData(12, 0, 'haojun Liao  ')
+        tdSql.checkData(13, 0, 'hongzecheng')
+
+        tdSql.query('select ltrim(stb1.c14),ltrim(stba.c15) from stb1,stba where stb1.t1=stba.t1 and stb1.ts=stba.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'TaosdAta  ')
+        tdSql.checkData(0, 1, 'tDenGine  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'Jeff Tao')
+        tdSql.checkData(2, 0, 'XiaoBo ')
+        tdSql.checkData(2, 1, 'SteVeN LI')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 'Wade ZhAng  ')
+        tdSql.checkData(4, 0, 'Wade Zhang')
+        tdSql.checkData(4, 1, 'shengliang guaN  ')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(5, 1, 'haojun Liao  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'hongzecheng')
+
+        tdSql.error('select ltrim(c14) as a from stb1 union all select ltrim(c15) as a from stba;')
+
+        tdSql.query('select ltrim(c8) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(6, 0, 'ghi  ')
+        tdSql.checkData(7, 0, 'ghi  ')
+        tdSql.checkData(8, 0, 'taos Data  ')
+        tdSql.checkData(9, 0, 'taOs Data  ')
+        tdSql.checkData(10, 0, 'aBc')
+        tdSql.checkData(11, 0, 'Bcd')
+        tdSql.checkData(12, 0, 'cdE')
+        tdSql.checkData(13, 0, 'deF')
+        tdSql.checkData(14, 0, 'efG')
+        tdSql.checkData(15, 0, 'f Gh')
+        tdSql.checkData(16, 0, 'ghi  ')
+        tdSql.checkData(17, 0, 'ghi  ')
+        tdSql.checkData(18, 0, 'taos Data  ')
+        tdSql.checkData(19, 0, 'taOs Data  ')
+        tdSql.checkData(20, 0, 'aBc')
+        tdSql.checkData(21, 0, 'Bcd')
+        tdSql.checkData(22, 0, 'cdE')
+        tdSql.checkData(23, 0, 'deF')
+        tdSql.checkData(24, 0, 'efG')
+        tdSql.checkData(25, 0, 'f Gh')
+        tdSql.checkData(26, 0, 'ghi  ')
+        tdSql.checkData(27, 0, 'ghi  ')
+        tdSql.checkData(28, 0, 'taos Data  ')
+        tdSql.checkData(29, 0, 'taOs Data  ')
+
+        tdSql.query('select ltrim(c9) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'AbCd')
+        tdSql.checkData(1, 0, 'BcdE')
+        tdSql.checkData(2, 0, 'cdEf')
+        tdSql.checkData(3, 0, 'deFg')
+        tdSql.checkData(4, 0, 'efGH')
+        tdSql.checkData(5, 0, 'fgHk ')
+        tdSql.checkData(6, 0, 'ghiJ ')
+        tdSql.checkData(7, 0, '涛思数据 ')
+        tdSql.checkData(8, 0, '涛思数据 ')
+        tdSql.checkData(9, 0, '涛思数据2022 ')
+        tdSql.checkData(10, 0, 'AbCd')
+        tdSql.checkData(11, 0, 'BcdE')
+        tdSql.checkData(12, 0, 'cdEf')
+        tdSql.checkData(13, 0, 'deFg')
+        tdSql.checkData(14, 0, 'efGH')
+        tdSql.checkData(15, 0, 'fgHk ')
+        tdSql.checkData(16, 0, 'ghiJ ')
+        tdSql.checkData(17, 0, '涛思数据 ')
+        tdSql.checkData(18, 0, '涛思数据 ')
+        tdSql.checkData(19, 0, '涛思数据2022 ')
+        tdSql.checkData(20, 0, 'AbCd')
+        tdSql.checkData(21, 0, 'BcdE')
+        tdSql.checkData(22, 0, 'cdEf')
+        tdSql.checkData(23, 0, 'deFg')
+        tdSql.checkData(24, 0, 'efGH')
+        tdSql.checkData(25, 0, 'fgHk ')
+        tdSql.checkData(26, 0, 'ghiJ ')
+        tdSql.checkData(27, 0, '涛思数据 ')
+        tdSql.checkData(28, 0, '涛思数据 ')
+        tdSql.checkData(29, 0, '涛思数据2022 ')
+
+        tdSql.query('select ltrim(cast(min(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select ltrim(cast(max(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9')
+
+        tdSql.query('select ltrim(cast(count(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '30')
+
+        tdSql.query('select ltrim(cast(sum(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '135')
+
+        tdSql.query('select ltrim(cast(avg(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.500000')
+
+        tdSql.query('select ltrim(cast(percentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.900000')
+
+        tdSql.query('select ltrim(cast(apercentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select ltrim(cast(stddev(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '2.872281')
+
+        tdSql.query('select ltrim(cast(spread(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9.000000')
+
+        tdSql.query('select ltrim(cast(twa(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.637931')
+
+        tdSql.error('select ltrim(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.query('select ltrim(cast(interp(c2) as binary(20))) from tba1 every(1s)')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 1, '1')
+        tdSql.checkData(1, 0, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 1, '2')
+        tdSql.checkData(2, 0, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 1, '3')
+        tdSql.checkData(3, 0, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 1, '4')
+        tdSql.checkData(4, 0, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 1, '5')
+        tdSql.checkData(5, 0, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 1, '6')
+        tdSql.checkData(6, 0, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 1, '7')
+        tdSql.checkData(7, 0, datetime.datetime(2021, 11, 11, 9, 0, 7))
+        tdSql.checkData(7, 1, '8')
+        tdSql.checkData(8, 0, datetime.datetime(2021, 11, 11, 9, 0, 8))
+        tdSql.checkData(8, 1, '9')
+        tdSql.checkData(9, 0, datetime.datetime(2021, 11, 11, 9, 0, 9))
+        tdSql.checkData(9, 1, '0')
+        tdSql.checkData(10, 0, datetime.datetime(2021, 11, 11, 9, 0, 10))
+        tdSql.checkData(10, 1, '1')
+        tdSql.checkData(11, 0, datetime.datetime(2021, 11, 11, 9, 0, 11))
+        tdSql.checkData(11, 1, '2')
+        tdSql.checkData(12, 0, datetime.datetime(2021, 11, 11, 9, 0, 12))
+        tdSql.checkData(12, 1, '3')
+        tdSql.checkData(13, 0, datetime.datetime(2021, 11, 11, 9, 0, 13))
+        tdSql.checkData(13, 1, '4')
+        tdSql.checkData(14, 0, datetime.datetime(2021, 11, 11, 9, 0, 14))
+        tdSql.checkData(14, 1, '5')
+        tdSql.checkData(15, 0, datetime.datetime(2021, 11, 11, 9, 0, 15))
+        tdSql.checkData(15, 1, '6')
+        tdSql.checkData(16, 0, datetime.datetime(2021, 11, 11, 9, 0, 16))
+        tdSql.checkData(16, 1, '7')
+        tdSql.checkData(17, 0, datetime.datetime(2021, 11, 11, 9, 0, 17))
+        tdSql.checkData(17, 1, '8')
+        tdSql.checkData(18, 0, datetime.datetime(2021, 11, 11, 9, 0, 18))
+        tdSql.checkData(18, 1, '9')
+        tdSql.checkData(19, 0, datetime.datetime(2021, 11, 11, 9, 0, 19))
+        tdSql.checkData(19, 1, '0')
+        tdSql.checkData(20, 0, datetime.datetime(2021, 11, 11, 9, 0, 20))
+        tdSql.checkData(20, 1, '1')
+        tdSql.checkData(21, 0, datetime.datetime(2021, 11, 11, 9, 0, 21))
+        tdSql.checkData(21, 1, '2')
+        tdSql.checkData(22, 0, datetime.datetime(2021, 11, 11, 9, 0, 22))
+        tdSql.checkData(22, 1, '3')
+        tdSql.checkData(23, 0, datetime.datetime(2021, 11, 11, 9, 0, 23))
+        tdSql.checkData(23, 1, '4')
+        tdSql.checkData(24, 0, datetime.datetime(2021, 11, 11, 9, 0, 24))
+        tdSql.checkData(24, 1, '5')
+        tdSql.checkData(25, 0, datetime.datetime(2021, 11, 11, 9, 0, 25))
+        tdSql.checkData(25, 1, '6')
+        tdSql.checkData(26, 0, datetime.datetime(2021, 11, 11, 9, 0, 26))
+        tdSql.checkData(26, 1, '7')
+        tdSql.checkData(27, 0, datetime.datetime(2021, 11, 11, 9, 0, 27))
+        tdSql.checkData(27, 1, '8')
+        tdSql.checkData(28, 0, datetime.datetime(2021, 11, 11, 9, 0, 28))
+        tdSql.checkData(28, 1, '9')
+        tdSql.checkData(29, 0, datetime.datetime(2021, 11, 11, 9, 0, 29))
+        tdSql.checkData(29, 1, '0')
+
+        tdSql.error('select ltrim(cast(interp(c2) as binary(20))) stba every(1s) group by tbname;')
+
+        tdSql.query('select ltrim(cast(elapsed(ts) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '29000.000000')
+
+        tdSql.query('select ltrim(cast(rate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.896552')
+
+        tdSql.query('select ltrim(cast(irate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select ltrim(cast(first(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '1')
+
+        tdSql.query('select ltrim(cast(last(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select ltrim(cast(last_row(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.error('select ltrim(cast(top(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(bottom(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(derivative(c2, 1s, 0) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(diff(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(csum(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(mavg(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(sample(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select ltrim(cast(_block_dist() as binary(20))) from tba1;')
+
+
+        tdSql.execute('drop database ltrim_func')
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/develop-test/2-query/rtrim_func.py

+import sys 
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import tdDnodes
+from math import inf
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1<shenglian zhou>: [TD-11204]Difference improvement that can ignore negative 
+        ''' 
+        return
+    
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn
+        
+    def restartTaosd(self, index=1, dbname="db"):
+        tdDnodes.stop(index)
+        tdDnodes.startWithoutSleep(index)
+        tdSql.execute(f"use rtrim_func")
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.execute("drop database if exists rtrim_func")
+        tdSql.execute("create database if not exists rtrim_func")
+        tdSql.execute('use rtrim_func')
+        tdSql.execute('create table stb1 (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tb1 using stb1 tags(1,'1',1.0);")
+
+        tdSql.execute("create table tb2 using stb1 tags(2,'2',2.0);")
+
+        tdSql.execute("create table tb3 using stb1 tags(3,'3',3.0);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"123","1234",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute("insert into tb1 values ('2021-11-11 09:00:01',true,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:02\',true,2,NULL,2,NULL,2,NULL,"234",NULL,2,NULL,2,NULL,\' XiaoBo \',NULL);')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:03\',false,NULL,3,NULL,3,NULL,3,NULL,"3456",NULL,3,NULL,3,NULL,\'bOxiaO\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:04\',true,4,4,4,4,4,4,"456","4567",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:05\',true,127,32767,2147483647,9223372036854775807,3.402823466e+38,1.79769e+308,"567","5678",254,65534,4294967294,9223372036854775807,\'27\',\'278\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:06\',true,-127,-32767,-2147483647,-9223372036854775807,-3.402823466e+38,-1.79769e+308,"678","6789",0,0,0,0,\'\',\'\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('create table tbn (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30));')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.error('select rtrim(*) from tb1;')
+
+        tdSql.error('select rtrim(*) + 1 as a from tb1;')
+
+        tdSql.error('select rtrim(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select rtrim(*) from tb1;')
+
+        tdSql.error('select rtrim(c1) from tb1;')
+
+        tdSql.error('select rtrim(13) from tb1;')
+
+        tdSql.error('select rtrim(c1) from tb1;')
+
+        tdSql.error('select rtrim(c2) from tb1;')
+
+        tdSql.error('select rtrim(c3) from tb1;')
+
+        tdSql.error('select rtrim(c4) from tb1;')
+
+        tdSql.error('select rtrim(c5) from tb1;')
+
+        tdSql.error('select rtrim(c6) from tb1;')
+
+        tdSql.error('select rtrim(c7) from tb1;')
+
+        tdSql.query('select rtrim(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select rtrim(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select rtrim(c10) from tb1;')
+
+        tdSql.error('select rtrim(c11) from tb1;')
+
+        tdSql.error('select rtrim(c12) from tb1;')
+
+        tdSql.error('select rtrim(c13) from tb1;')
+
+        tdSql.query("select rtrim('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct rtrim(123) from tb1;')
+
+        tdSql.error('select rtrim(t1) from stb1;')
+
+        tdSql.error('select rtrim(c8),avg(c3) from tb1;')
+
+        tdSql.error('select rtrim(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select rtrim(c8),rtrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, '  TaosdAta')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, '  jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, '  Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, '  Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, ' simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, ' Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi')
+        tdSql.checkData(6, 1, ' hongZe cheng')
+
+        tdSql.error('select rtrim(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select rtrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select rtrim("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'abc')
+        tdSql.checkData(2, 0, 'abc')
+        tdSql.checkData(3, 0, 'abc')
+        tdSql.checkData(4, 0, 'abc')
+        tdSql.checkData(5, 0, 'abc')
+        tdSql.checkData(6, 0, 'abc')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select rtrim((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select rtrim('11')+c2 from tb1;")
+
+        tdSql.error('select rtrim(c8)+c2 from tb1;')
+
+        tdSql.error('select rtrim(c14)+11 from tb1;')
+
+        tdSql.query('select rtrim(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select rtrim(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select rtrim(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select rtrim(c8),rtrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select rtrim(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, '  Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, ' XiaoBo')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '  TaosdAta')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 XiaoBo')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  TaosdAta')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  Wade Zhang')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo')
+
+        tdSql.query('select rtrim(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TaosdAta')
+        tdSql.checkData(8, 0, '  jeFF tAo')
+        tdSql.checkData(9, 0, '  Steven Li')
+        tdSql.checkData(10, 0, '  Wade Zhang')
+        tdSql.checkData(11, 0, ' simOnGuan')
+        tdSql.checkData(12, 0, ' Ph. D. Liao')
+        tdSql.checkData(13, 0, ' hongZe cheng')
+
+        tdSql.query('select rtrim(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select rtrim(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select rtrim(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, ' Wade ZhAng')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, '  tDenGine')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, ' Wade ZhAng')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'shengliang guaN')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'haojun Liao')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, '  hongzecheng')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select rtrim(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'Jeff Tao')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'SteVeN LI')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, ' Wade ZhAng')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'shengliang guaN')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'haojun Liao')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, '  hongzecheng')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select rtrim(c8),rtrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, '  TaosdAta')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, '  jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, '  Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, '  Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, ' simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, ' Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi')
+        tdSql.checkData(6, 1, ' hongZe cheng')
+
+        tdSql.query('select rtrim(c8),rtrim(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ghi')
+        tdSql.checkData(0, 1, ' hongZe cheng')
+        tdSql.checkData(1, 0, 'f Gh')
+        tdSql.checkData(1, 1, ' Ph. D. Liao')
+        tdSql.checkData(2, 0, 'efG')
+        tdSql.checkData(2, 1, ' simOnGuan')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, '  Wade Zhang')
+        tdSql.checkData(4, 0, 'cdE')
+        tdSql.checkData(4, 1, '  Steven Li')
+        tdSql.checkData(5, 0, 'Bcd')
+        tdSql.checkData(5, 1, '  jeFF tAo')
+        tdSql.checkData(6, 0, 'aBc')
+        tdSql.checkData(6, 1, '  TaosdAta')
+
+        tdSql.query('select rtrim(rtrim(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(6, 0, 'ghi')
+
+        tdSql.query('select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select rtrim(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TaosdAta')
+        tdSql.checkData(8, 0, '  jeFF tAo')
+        tdSql.checkData(9, 0, '  Steven Li')
+        tdSql.checkData(10, 0, '  Wade Zhang')
+        tdSql.checkData(11, 0, ' simOnGuan')
+        tdSql.checkData(12, 0, ' Ph. D. Liao')
+        tdSql.checkData(13, 0, ' hongZe cheng')
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select rtrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select rtrim(tb1.c15),rtrim(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(0, 1, '  tDenGine')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'Jeff Tao')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'SteVeN LI')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, ' Wade ZhAng')
+        tdSql.checkData(4, 0, ' Wade ZhAng')
+        tdSql.checkData(4, 1, 'shengliang guaN')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'haojun Liao')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  hongzecheng')
+
+        tdSql.query('select rtrim(c15) from tb1 union all select rtrim(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(4, 0, ' Wade ZhAng')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  tDenGine')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(10, 0, ' Wade ZhAng')
+        tdSql.checkData(11, 0, 'shengliang guaN')
+        tdSql.checkData(12, 0, 'haojun Liao')
+        tdSql.checkData(13, 0, '  hongzecheng')
+
+
+        tdSql.execute('create table stba (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tba1 using stba tags(1,'1',1.0);")
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:00\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:01\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:02\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:04\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:05\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:06\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:07\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:08\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:09\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='rtrim_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:10\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:11\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:12\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:13\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:14\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:15\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:16\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:17\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:18\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:19\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='rtrim_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:20\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:21\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:22\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:23\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:24\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:25\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:26\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:27\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:28\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:29\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        tdSql.error('select rtrim(*) from tb1;')
+
+        tdSql.error('select rtrim(*) + 1 as a from tb1;')
+
+        tdSql.error('select rtrim(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select rtrim(*) from tb1;')
+
+        tdSql.error('select rtrim(c1) from tb1;')
+
+        tdSql.error('select rtrim(13) from tb1;')
+
+        tdSql.error('select rtrim(c1) from tb1;')
+
+        tdSql.error('select rtrim(c2) from tb1;')
+
+        tdSql.error('select rtrim(c3) from tb1;')
+
+        tdSql.error('select rtrim(c4) from tb1;')
+
+        tdSql.error('select rtrim(c5) from tb1;')
+
+        tdSql.error('select rtrim(c6) from tb1;')
+
+        tdSql.error('select rtrim(c7) from tb1;')
+
+        tdSql.query('select rtrim(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select rtrim(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select rtrim(c10) from tb1;')
+
+        tdSql.error('select rtrim(c11) from tb1;')
+
+        tdSql.error('select rtrim(c12) from tb1;')
+
+        tdSql.error('select rtrim(c13) from tb1;')
+
+        tdSql.query("select rtrim('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct rtrim(123) from tb1;')
+
+        tdSql.error('select rtrim(t1) from stb1;')
+
+        tdSql.error('select rtrim(c8),avg(c3) from tb1;')
+
+        tdSql.error('select rtrim(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select rtrim(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select rtrim(c8),rtrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, '  TaosdAta')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, '  jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, '  Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, '  Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, ' simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, ' Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi')
+        tdSql.checkData(6, 1, ' hongZe cheng')
+
+        tdSql.error('select rtrim(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select rtrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select rtrim("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'abc')
+        tdSql.checkData(1, 0, 'abc')
+        tdSql.checkData(2, 0, 'abc')
+        tdSql.checkData(3, 0, 'abc')
+        tdSql.checkData(4, 0, 'abc')
+        tdSql.checkData(5, 0, 'abc')
+        tdSql.checkData(6, 0, 'abc')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select rtrim((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select rtrim('11')+c2 from tb1;")
+
+        tdSql.error('select rtrim(c8)+c2 from tb1;')
+
+        tdSql.error('select rtrim(c14)+11 from tb1;')
+
+        tdSql.query('select rtrim(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select rtrim(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select rtrim(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select rtrim(c8),rtrim(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  Wade Zhang')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select rtrim(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, '  Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, ' XiaoBo')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '  TaosdAta')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  Wade Zhang')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 XiaoBo')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  TaosdAta')
+
+        tdSql.query('select rtrim(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  Wade Zhang')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XiaoBo')
+
+        tdSql.query('select rtrim(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TaosdAta')
+        tdSql.checkData(8, 0, '  jeFF tAo')
+        tdSql.checkData(9, 0, '  Steven Li')
+        tdSql.checkData(10, 0, '  Wade Zhang')
+        tdSql.checkData(11, 0, ' simOnGuan')
+        tdSql.checkData(12, 0, ' Ph. D. Liao')
+        tdSql.checkData(13, 0, ' hongZe cheng')
+
+        tdSql.query('select rtrim(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select rtrim(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select rtrim(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, ' Wade ZhAng')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, '  tDenGine')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, ' Wade ZhAng')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'shengliang guaN')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'haojun Liao')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, '  hongzecheng')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select rtrim(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'Jeff Tao')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'SteVeN LI')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, ' Wade ZhAng')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'shengliang guaN')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'haojun Liao')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, '  hongzecheng')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select rtrim(c8),rtrim(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(0, 1, '  TaosdAta')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(1, 1, '  jeFF tAo')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(2, 1, '  Steven Li')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, '  Wade Zhang')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(4, 1, ' simOnGuan')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(5, 1, ' Ph. D. Liao')
+        tdSql.checkData(6, 0, 'ghi')
+        tdSql.checkData(6, 1, ' hongZe cheng')
+
+        tdSql.query('select rtrim(c8),rtrim(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ghi')
+        tdSql.checkData(0, 1, ' hongZe cheng')
+        tdSql.checkData(1, 0, 'f Gh')
+        tdSql.checkData(1, 1, ' Ph. D. Liao')
+        tdSql.checkData(2, 0, 'efG')
+        tdSql.checkData(2, 1, ' simOnGuan')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(3, 1, '  Wade Zhang')
+        tdSql.checkData(4, 0, 'cdE')
+        tdSql.checkData(4, 1, '  Steven Li')
+        tdSql.checkData(5, 0, 'Bcd')
+        tdSql.checkData(5, 1, '  jeFF tAo')
+        tdSql.checkData(6, 0, 'aBc')
+        tdSql.checkData(6, 1, '  TaosdAta')
+
+        tdSql.query('select rtrim(rtrim(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(6, 0, 'ghi')
+
+        tdSql.query('select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select rtrim(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TaosdAta')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XiaoBo')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  Wade Zhang')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TaosdAta')
+        tdSql.checkData(8, 0, '  jeFF tAo')
+        tdSql.checkData(9, 0, '  Steven Li')
+        tdSql.checkData(10, 0, '  Wade Zhang')
+        tdSql.checkData(11, 0, ' simOnGuan')
+        tdSql.checkData(12, 0, ' Ph. D. Liao')
+        tdSql.checkData(13, 0, ' hongZe cheng')
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select rtrim(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select rtrim(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select rtrim(tb1.c15),rtrim(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(0, 1, '  tDenGine')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'Jeff Tao')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'SteVeN LI')
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(3, 1, ' Wade ZhAng')
+        tdSql.checkData(4, 0, ' Wade ZhAng')
+        tdSql.checkData(4, 1, 'shengliang guaN')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'haojun Liao')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  hongzecheng')
+
+        tdSql.query('select rtrim(c15) from tb1 union all select rtrim(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  tDenGine')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'bOxiaO')
+        tdSql.checkData(4, 0, ' Wade ZhAng')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  tDenGine')
+        tdSql.checkData(8, 0, 'Jeff Tao')
+        tdSql.checkData(9, 0, 'SteVeN LI')
+        tdSql.checkData(10, 0, ' Wade ZhAng')
+        tdSql.checkData(11, 0, 'shengliang guaN')
+        tdSql.checkData(12, 0, 'haojun Liao')
+        tdSql.checkData(13, 0, '  hongzecheng')
+
+        tdSql.query('select rtrim(stb1.c14),rtrim(stba.c15) from stb1,stba where stb1.t1=stba.t1 and stb1.ts=stba.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TaosdAta')
+        tdSql.checkData(0, 1, '  tDenGine')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'Jeff Tao')
+        tdSql.checkData(2, 0, ' XiaoBo')
+        tdSql.checkData(2, 1, 'SteVeN LI')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, ' Wade ZhAng')
+        tdSql.checkData(4, 0, '  Wade Zhang')
+        tdSql.checkData(4, 1, 'shengliang guaN')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(5, 1, 'haojun Liao')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  hongzecheng')
+
+        tdSql.error('select rtrim(c14) as a from stb1 union all select rtrim(c15) as a from stba;')
+
+        tdSql.query('select rtrim(c8) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'aBc')
+        tdSql.checkData(1, 0, 'Bcd')
+        tdSql.checkData(2, 0, 'cdE')
+        tdSql.checkData(3, 0, 'deF')
+        tdSql.checkData(4, 0, 'efG')
+        tdSql.checkData(5, 0, 'f Gh')
+        tdSql.checkData(6, 0, 'ghi')
+        tdSql.checkData(7, 0, 'ghi')
+        tdSql.checkData(8, 0, ' taos Data')
+        tdSql.checkData(9, 0, ' taOs Data')
+        tdSql.checkData(10, 0, 'aBc')
+        tdSql.checkData(11, 0, 'Bcd')
+        tdSql.checkData(12, 0, 'cdE')
+        tdSql.checkData(13, 0, 'deF')
+        tdSql.checkData(14, 0, 'efG')
+        tdSql.checkData(15, 0, 'f Gh')
+        tdSql.checkData(16, 0, 'ghi')
+        tdSql.checkData(17, 0, 'ghi')
+        tdSql.checkData(18, 0, ' taos Data')
+        tdSql.checkData(19, 0, ' taOs Data')
+        tdSql.checkData(20, 0, 'aBc')
+        tdSql.checkData(21, 0, 'Bcd')
+        tdSql.checkData(22, 0, 'cdE')
+        tdSql.checkData(23, 0, 'deF')
+        tdSql.checkData(24, 0, 'efG')
+        tdSql.checkData(25, 0, 'f Gh')
+        tdSql.checkData(26, 0, 'ghi')
+        tdSql.checkData(27, 0, 'ghi')
+        tdSql.checkData(28, 0, ' taos Data')
+        tdSql.checkData(29, 0, ' taOs Data')
+
+        tdSql.query('select rtrim(c9) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'AbCd')
+        tdSql.checkData(1, 0, 'BcdE')
+        tdSql.checkData(2, 0, 'cdEf')
+        tdSql.checkData(3, 0, 'deFg')
+        tdSql.checkData(4, 0, 'efGH')
+        tdSql.checkData(5, 0, ' fgHk')
+        tdSql.checkData(6, 0, '  ghiJ')
+        tdSql.checkData(7, 0, '  涛思数据')
+        tdSql.checkData(8, 0, '  涛思数据')
+        tdSql.checkData(9, 0, '  涛思数据2022')
+        tdSql.checkData(10, 0, 'AbCd')
+        tdSql.checkData(11, 0, 'BcdE')
+        tdSql.checkData(12, 0, 'cdEf')
+        tdSql.checkData(13, 0, 'deFg')
+        tdSql.checkData(14, 0, 'efGH')
+        tdSql.checkData(15, 0, ' fgHk')
+        tdSql.checkData(16, 0, '  ghiJ')
+        tdSql.checkData(17, 0, '  涛思数据')
+        tdSql.checkData(18, 0, '  涛思数据')
+        tdSql.checkData(19, 0, '  涛思数据2022')
+        tdSql.checkData(20, 0, 'AbCd')
+        tdSql.checkData(21, 0, 'BcdE')
+        tdSql.checkData(22, 0, 'cdEf')
+        tdSql.checkData(23, 0, 'deFg')
+        tdSql.checkData(24, 0, 'efGH')
+        tdSql.checkData(25, 0, ' fgHk')
+        tdSql.checkData(26, 0, '  ghiJ')
+        tdSql.checkData(27, 0, '  涛思数据')
+        tdSql.checkData(28, 0, '  涛思数据')
+        tdSql.checkData(29, 0, '  涛思数据2022')
+
+        tdSql.query('select rtrim(cast(min(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select rtrim(cast(max(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9')
+
+        tdSql.query('select rtrim(cast(count(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '30')
+
+        tdSql.query('select rtrim(cast(sum(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '135')
+
+        tdSql.query('select rtrim(cast(avg(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.500000')
+
+        tdSql.query('select rtrim(cast(percentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.900000')
+
+        tdSql.query('select rtrim(cast(apercentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select rtrim(cast(stddev(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '2.872281')
+
+        tdSql.query('select rtrim(cast(spread(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9.000000')
+
+        tdSql.query('select rtrim(cast(twa(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.637931')
+
+        tdSql.error('select rtrim(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.query('select rtrim(cast(interp(c2) as binary(20))) from tba1 every(1s)')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 1, '1')
+        tdSql.checkData(1, 0, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 1, '2')
+        tdSql.checkData(2, 0, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 1, '3')
+        tdSql.checkData(3, 0, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 1, '4')
+        tdSql.checkData(4, 0, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 1, '5')
+        tdSql.checkData(5, 0, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 1, '6')
+        tdSql.checkData(6, 0, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 1, '7')
+        tdSql.checkData(7, 0, datetime.datetime(2021, 11, 11, 9, 0, 7))
+        tdSql.checkData(7, 1, '8')
+        tdSql.checkData(8, 0, datetime.datetime(2021, 11, 11, 9, 0, 8))
+        tdSql.checkData(8, 1, '9')
+        tdSql.checkData(9, 0, datetime.datetime(2021, 11, 11, 9, 0, 9))
+        tdSql.checkData(9, 1, '0')
+        tdSql.checkData(10, 0, datetime.datetime(2021, 11, 11, 9, 0, 10))
+        tdSql.checkData(10, 1, '1')
+        tdSql.checkData(11, 0, datetime.datetime(2021, 11, 11, 9, 0, 11))
+        tdSql.checkData(11, 1, '2')
+        tdSql.checkData(12, 0, datetime.datetime(2021, 11, 11, 9, 0, 12))
+        tdSql.checkData(12, 1, '3')
+        tdSql.checkData(13, 0, datetime.datetime(2021, 11, 11, 9, 0, 13))
+        tdSql.checkData(13, 1, '4')
+        tdSql.checkData(14, 0, datetime.datetime(2021, 11, 11, 9, 0, 14))
+        tdSql.checkData(14, 1, '5')
+        tdSql.checkData(15, 0, datetime.datetime(2021, 11, 11, 9, 0, 15))
+        tdSql.checkData(15, 1, '6')
+        tdSql.checkData(16, 0, datetime.datetime(2021, 11, 11, 9, 0, 16))
+        tdSql.checkData(16, 1, '7')
+        tdSql.checkData(17, 0, datetime.datetime(2021, 11, 11, 9, 0, 17))
+        tdSql.checkData(17, 1, '8')
+        tdSql.checkData(18, 0, datetime.datetime(2021, 11, 11, 9, 0, 18))
+        tdSql.checkData(18, 1, '9')
+        tdSql.checkData(19, 0, datetime.datetime(2021, 11, 11, 9, 0, 19))
+        tdSql.checkData(19, 1, '0')
+        tdSql.checkData(20, 0, datetime.datetime(2021, 11, 11, 9, 0, 20))
+        tdSql.checkData(20, 1, '1')
+        tdSql.checkData(21, 0, datetime.datetime(2021, 11, 11, 9, 0, 21))
+        tdSql.checkData(21, 1, '2')
+        tdSql.checkData(22, 0, datetime.datetime(2021, 11, 11, 9, 0, 22))
+        tdSql.checkData(22, 1, '3')
+        tdSql.checkData(23, 0, datetime.datetime(2021, 11, 11, 9, 0, 23))
+        tdSql.checkData(23, 1, '4')
+        tdSql.checkData(24, 0, datetime.datetime(2021, 11, 11, 9, 0, 24))
+        tdSql.checkData(24, 1, '5')
+        tdSql.checkData(25, 0, datetime.datetime(2021, 11, 11, 9, 0, 25))
+        tdSql.checkData(25, 1, '6')
+        tdSql.checkData(26, 0, datetime.datetime(2021, 11, 11, 9, 0, 26))
+        tdSql.checkData(26, 1, '7')
+        tdSql.checkData(27, 0, datetime.datetime(2021, 11, 11, 9, 0, 27))
+        tdSql.checkData(27, 1, '8')
+        tdSql.checkData(28, 0, datetime.datetime(2021, 11, 11, 9, 0, 28))
+        tdSql.checkData(28, 1, '9')
+        tdSql.checkData(29, 0, datetime.datetime(2021, 11, 11, 9, 0, 29))
+        tdSql.checkData(29, 1, '0')
+
+        tdSql.error('select rtrim(cast(interp(c2) as binary(20))) stba every(1s) group by tbname;')
+
+        tdSql.query('select rtrim(cast(elapsed(ts) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '29000.000000')
+
+        tdSql.query('select rtrim(cast(rate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.896552')
+
+        tdSql.query('select rtrim(cast(irate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select rtrim(cast(first(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '1')
+
+        tdSql.query('select rtrim(cast(last(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select rtrim(cast(last_row(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.error('select rtrim(cast(top(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(bottom(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(derivative(c2, 1s, 0) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(diff(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(csum(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(mavg(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(sample(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select rtrim(cast(_block_dist() as binary(20))) from tba1;')
+
+
+        tdSql.execute('drop database rtrim_func')
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/develop-test/2-query/upper_func.py

+import sys 
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import tdDnodes
+from math import inf
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1<shenglian zhou>: [TD-11204]Difference improvement that can ignore negative 
+        ''' 
+        return
+    
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn
+        
+    def restartTaosd(self, index=1, dbname="db"):
+        tdDnodes.stop(index)
+        tdDnodes.startWithoutSleep(index)
+        tdSql.execute(f"use upper_func")
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.execute("drop database if exists upper_func")
+        tdSql.execute("create database if not exists upper_func")
+        tdSql.execute('use upper_func')
+        tdSql.execute('create table stb1 (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tb1 using stb1 tags(1,'1',1.0);")
+
+        tdSql.execute("create table tb2 using stb1 tags(2,'2',2.0);")
+
+        tdSql.execute("create table tb3 using stb1 tags(3,'3',3.0);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"123","1234",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute("insert into tb1 values ('2021-11-11 09:00:01',true,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);")
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:02\',true,2,NULL,2,NULL,2,NULL,"234",NULL,2,NULL,2,NULL,\' XiaoBo \',NULL);')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:03\',false,NULL,3,NULL,3,NULL,3,NULL,"3456",NULL,3,NULL,3,NULL,\'bOxiaO\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:04\',true,4,4,4,4,4,4,"456","4567",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:05\',true,127,32767,2147483647,9223372036854775807,3.402823466e+38,1.79769e+308,"567","5678",254,65534,4294967294,9223372036854775807,\'27\',\'278\');')
+
+        tdSql.execute('insert into tb1 values (\'2021-11-11 09:00:06\',true,-127,-32767,-2147483647,-9223372036854775807,-3.402823466e+38,-1.79769e+308,"678","6789",0,0,0,0,\'\',\'\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tb2 values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('create table tbn (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30));')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:00\',true,1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:01\',true,2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:02\',true,3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:04\',true,5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:05\',true,6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tbn values (\'2021-11-11 09:00:06\',true,7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.error('select upper(*) from tb1;')
+
+        tdSql.error('select upper(*) + 1 as a from tb1;')
+
+        tdSql.error('select upper(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select upper(*) from tb1;')
+
+        tdSql.error('select upper(c1) from tb1;')
+
+        tdSql.error('select upper(13) from tb1;')
+
+        tdSql.error('select upper(c1) from tb1;')
+
+        tdSql.error('select upper(c2) from tb1;')
+
+        tdSql.error('select upper(c3) from tb1;')
+
+        tdSql.error('select upper(c4) from tb1;')
+
+        tdSql.error('select upper(c5) from tb1;')
+
+        tdSql.error('select upper(c6) from tb1;')
+
+        tdSql.error('select upper(c7) from tb1;')
+
+        tdSql.query('select upper(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select upper(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  WADE ZHANG')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select upper(c10) from tb1;')
+
+        tdSql.error('select upper(c11) from tb1;')
+
+        tdSql.error('select upper(c12) from tb1;')
+
+        tdSql.error('select upper(c13) from tb1;')
+
+        tdSql.query("select upper('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct upper(123) from tb1;')
+
+        tdSql.error('select upper(t1) from stb1;')
+
+        tdSql.error('select upper(c8),avg(c3) from tb1;')
+
+        tdSql.error('select upper(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select upper(c8),upper(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(0, 1, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, 'BCD')
+        tdSql.checkData(1, 1, '  JEFF TAO')
+        tdSql.checkData(2, 0, 'CDE')
+        tdSql.checkData(2, 1, '  STEVEN LI')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(3, 1, '  WADE ZHANG')
+        tdSql.checkData(4, 0, 'EFG')
+        tdSql.checkData(4, 1, ' SIMONGUAN')
+        tdSql.checkData(5, 0, 'F GH')
+        tdSql.checkData(5, 1, ' PH. D. LIAO')
+        tdSql.checkData(6, 0, 'GHI  ')
+        tdSql.checkData(6, 1, ' HONGZE CHENG ')
+
+        tdSql.error('select upper(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select upper(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select upper("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(1, 0, 'ABC')
+        tdSql.checkData(2, 0, 'ABC')
+        tdSql.checkData(3, 0, 'ABC')
+        tdSql.checkData(4, 0, 'ABC')
+        tdSql.checkData(5, 0, 'ABC')
+        tdSql.checkData(6, 0, 'ABC')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  WADE ZHANG')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select upper((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  WADE ZHANG')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select upper('11')+c2 from tb1;")
+
+        tdSql.error('select upper(c8)+c2 from tb1;')
+
+        tdSql.error('select upper(c14)+11 from tb1;')
+
+        tdSql.query('select upper(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select upper(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select upper(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select upper(c8),upper(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  WADE ZHANG')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  WADE ZHANG')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select upper(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, '  WADE ZHANG')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, ' XIAOBO ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '  TAOSDATA  ')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  WADE ZHANG')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 XIAOBO ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  TAOSDATA  ')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  WADE ZHANG')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XIAOBO ')
+
+        tdSql.query('select upper(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  WADE ZHANG')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TAOSDATA  ')
+        tdSql.checkData(8, 0, '  JEFF TAO')
+        tdSql.checkData(9, 0, '  STEVEN LI')
+        tdSql.checkData(10, 0, '  WADE ZHANG')
+        tdSql.checkData(11, 0, ' SIMONGUAN')
+        tdSql.checkData(12, 0, ' PH. D. LIAO')
+        tdSql.checkData(13, 0, ' HONGZE CHENG ')
+
+        tdSql.query('select upper(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select upper(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select upper(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'BOXIAO')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, ' WADE ZHANG  ')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, '  TDENGINE  ')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'JEFF TAO')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'STEVEN LI')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, ' WADE ZHANG  ')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'HAOJUN LIAO  ')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, '  HONGZECHENG')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select upper(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'JEFF TAO')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'STEVEN LI')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, ' WADE ZHANG  ')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'HAOJUN LIAO  ')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, '  HONGZECHENG')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select upper(c8),upper(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(0, 1, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, 'BCD')
+        tdSql.checkData(1, 1, '  JEFF TAO')
+        tdSql.checkData(2, 0, 'CDE')
+        tdSql.checkData(2, 1, '  STEVEN LI')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(3, 1, '  WADE ZHANG')
+        tdSql.checkData(4, 0, 'EFG')
+        tdSql.checkData(4, 1, ' SIMONGUAN')
+        tdSql.checkData(5, 0, 'F GH')
+        tdSql.checkData(5, 1, ' PH. D. LIAO')
+        tdSql.checkData(6, 0, 'GHI  ')
+        tdSql.checkData(6, 1, ' HONGZE CHENG ')
+
+        tdSql.query('select upper(c8),upper(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'GHI  ')
+        tdSql.checkData(0, 1, ' HONGZE CHENG ')
+        tdSql.checkData(1, 0, 'F GH')
+        tdSql.checkData(1, 1, ' PH. D. LIAO')
+        tdSql.checkData(2, 0, 'EFG')
+        tdSql.checkData(2, 1, ' SIMONGUAN')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(3, 1, '  WADE ZHANG')
+        tdSql.checkData(4, 0, 'CDE')
+        tdSql.checkData(4, 1, '  STEVEN LI')
+        tdSql.checkData(5, 0, 'BCD')
+        tdSql.checkData(5, 1, '  JEFF TAO')
+        tdSql.checkData(6, 0, 'ABC')
+        tdSql.checkData(6, 1, '  TAOSDATA  ')
+
+        tdSql.query('select upper(upper(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(1, 0, 'BCD')
+        tdSql.checkData(2, 0, 'CDE')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(4, 0, 'EFG')
+        tdSql.checkData(5, 0, 'F GH')
+        tdSql.checkData(6, 0, 'GHI  ')
+
+        tdSql.query('select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select upper(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  WADE ZHANG')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TAOSDATA  ')
+        tdSql.checkData(8, 0, '  JEFF TAO')
+        tdSql.checkData(9, 0, '  STEVEN LI')
+        tdSql.checkData(10, 0, '  WADE ZHANG')
+        tdSql.checkData(11, 0, ' SIMONGUAN')
+        tdSql.checkData(12, 0, ' PH. D. LIAO')
+        tdSql.checkData(13, 0, ' HONGZE CHENG ')
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select upper(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select upper(tb1.c15),upper(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(0, 1, '  TDENGINE  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'JEFF TAO')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'STEVEN LI')
+        tdSql.checkData(3, 0, 'BOXIAO')
+        tdSql.checkData(3, 1, ' WADE ZHANG  ')
+        tdSql.checkData(4, 0, ' WADE ZHANG  ')
+        tdSql.checkData(4, 1, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'HAOJUN LIAO  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  HONGZECHENG')
+
+        tdSql.query('select upper(c15) from tb1 union all select upper(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'BOXIAO')
+        tdSql.checkData(4, 0, ' WADE ZHANG  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TDENGINE  ')
+        tdSql.checkData(8, 0, 'JEFF TAO')
+        tdSql.checkData(9, 0, 'STEVEN LI')
+        tdSql.checkData(10, 0, ' WADE ZHANG  ')
+        tdSql.checkData(11, 0, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(12, 0, 'HAOJUN LIAO  ')
+        tdSql.checkData(13, 0, '  HONGZECHENG')
+
+
+        tdSql.execute('create table stba (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, c6 float, c7 double, c8 binary(20), c9 nchar(20), c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned, c14 binary(20), c15 nchar(30)) TAGS(t1 int, t2 binary(10), t3 double);')
+
+        tdSql.execute("create table tba1 using stba tags(1,'1',1.0);")
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:00\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:01\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:02\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:03\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:04\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:05\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:06\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:07\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:08\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:09\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='upper_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:10\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:11\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:12\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:13\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:14\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:15\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:16\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:17\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:18\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:19\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        self.restartTaosd(1, dbname='upper_func')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:20\',true, 1,1,1,1,1,1,"aBc", "AbCd",1,1,1,1,\'  TaosdAta  \',\'  tDenGine  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:21\',true, 2,2,2,2,2,2,"Bcd", "BcdE",2,2,2,2,\'  jeFF tAo\',\'Jeff Tao\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:22\',true, 3,3,2,3,3,3,"cdE", "cdEf",3,3,3,3,\'  Steven Li\',\'SteVeN LI\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:23\',false,4,4,4,4,4,4,"deF", "deFg",4,4,4,4,\'  Wade Zhang\',\' Wade ZhAng  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:24\',true, 5,5,5,5,5,5,"efG", "efGH",5,5,5,5,\' simOnGuan\',\'shengliang guaN  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:25\',true, 6,6,6,6,6,6,"f Gh", " fgHk ",6,6,6,6,\' Ph. D. Liao\',\'haojun Liao  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:26\',true, 7,7,7,7,7,7,"ghi  ", "  ghiJ ",7,7,7,7,\' hongZe cheng \',\'  hongzecheng\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:27\',true, 8,8,8,8,8,8,"ghi  ", "  涛思数据 ",8,8,8,8,\' jiangyi HOU\',\'hou jiangyi\');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:28\',true, 9,9,9,9,9,9," taos Data  ", "  涛思数据 ",9,9,9,9,\' Jing Wang\',\'  运营  \');')
+
+        tdSql.execute('insert into tba1 values (\'2021-11-11 09:00:29\',true, 0,0,0,0,0,0," taOs Data  ", "  涛思数据2022 ",0,0,0,0,\'guang li\',\'销售：\');')
+
+        tdSql.error('select upper(*) from tb1;')
+
+        tdSql.error('select upper(*) + 1 as a from tb1;')
+
+        tdSql.error('select upper(tb1.*) + 1 as a from tb1;')
+
+        tdSql.error('select upper(*) from tb1;')
+
+        tdSql.error('select upper(c1) from tb1;')
+
+        tdSql.error('select upper(13) from tb1;')
+
+        tdSql.error('select upper(c1) from tb1;')
+
+        tdSql.error('select upper(c2) from tb1;')
+
+        tdSql.error('select upper(c3) from tb1;')
+
+        tdSql.error('select upper(c4) from tb1;')
+
+        tdSql.error('select upper(c5) from tb1;')
+
+        tdSql.error('select upper(c6) from tb1;')
+
+        tdSql.error('select upper(c7) from tb1;')
+
+        tdSql.query('select upper(c8) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select upper(c14) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  WADE ZHANG')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+
+        tdSql.error('select upper(c10) from tb1;')
+
+        tdSql.error('select upper(c11) from tb1;')
+
+        tdSql.error('select upper(c12) from tb1;')
+
+        tdSql.error('select upper(c13) from tb1;')
+
+        tdSql.query("select upper('12345678900000000000000000') from tb1;")
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '12345678900000000000000000')
+        tdSql.checkData(1, 0, '12345678900000000000000000')
+        tdSql.checkData(2, 0, '12345678900000000000000000')
+        tdSql.checkData(3, 0, '12345678900000000000000000')
+        tdSql.checkData(4, 0, '12345678900000000000000000')
+        tdSql.checkData(5, 0, '12345678900000000000000000')
+        tdSql.checkData(6, 0, '12345678900000000000000000')
+
+        tdSql.error('select distinct upper(123) from tb1;')
+
+        tdSql.error('select upper(t1) from stb1;')
+
+        tdSql.error('select upper(c8),avg(c3) from tb1;')
+
+        tdSql.error('select upper(c8),top(c3,1) from tb1;')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 session(ts, 1s);')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 STATE_WINDOW(c1);')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 interval(1s) sliding(1s) fill(NULL);')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by t1;')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by ts;')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by c1;')
+
+        tdSql.error('select upper(concat(c8,c14)) from stb1 group by tbname;')
+
+        tdSql.error('select upper(concat(c8,c14)) from tb1 order by c2;')
+
+        tdSql.query('select upper(c8),upper(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(0, 1, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, 'BCD')
+        tdSql.checkData(1, 1, '  JEFF TAO')
+        tdSql.checkData(2, 0, 'CDE')
+        tdSql.checkData(2, 1, '  STEVEN LI')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(3, 1, '  WADE ZHANG')
+        tdSql.checkData(4, 0, 'EFG')
+        tdSql.checkData(4, 1, ' SIMONGUAN')
+        tdSql.checkData(5, 0, 'F GH')
+        tdSql.checkData(5, 1, ' PH. D. LIAO')
+        tdSql.checkData(6, 0, 'GHI  ')
+        tdSql.checkData(6, 1, ' HONGZE CHENG ')
+
+        tdSql.error('select upper(ts) from (select avg(c2) as a from stb1 interval(1s));')
+
+        tdSql.query('select upper(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select upper("abc") from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(1, 0, 'ABC')
+        tdSql.checkData(2, 0, 'ABC')
+        tdSql.checkData(3, 0, 'ABC')
+        tdSql.checkData(4, 0, 'ABC')
+        tdSql.checkData(5, 0, 'ABC')
+        tdSql.checkData(6, 0, 'ABC')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  WADE ZHANG')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.query('select upper((concat(c8,c14))) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '456  WADE ZHANG')
+        tdSql.checkData(5, 0, '56727')
+        tdSql.checkData(6, 0, '678')
+
+        tdSql.error("select upper('11')+c2 from tb1;")
+
+        tdSql.error('select upper(c8)+c2 from tb1;')
+
+        tdSql.error('select upper(c14)+11 from tb1;')
+
+        tdSql.query('select upper(c8),c8,c2 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(1, 2, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234')
+        tdSql.checkData(2, 2, 2)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(3, 2, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456')
+        tdSql.checkData(4, 2, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '567')
+        tdSql.checkData(5, 2, 127)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+        tdSql.checkData(6, 2, -127)
+
+        tdSql.query('select upper(c8),t1,ts,tbname,_C0,_c0 from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(0, 2, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 3, 'tb1')
+        tdSql.checkData(0, 4, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 5, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(1, 2, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 3, 'tb1')
+        tdSql.checkData(1, 4, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 5, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(2, 2, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 3, 'tb1')
+        tdSql.checkData(2, 4, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 5, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(3, 2, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 3, 'tb1')
+        tdSql.checkData(3, 4, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 5, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(4, 2, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 3, 'tb1')
+        tdSql.checkData(4, 4, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 5, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(5, 2, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 3, 'tb1')
+        tdSql.checkData(5, 4, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 5, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(6, 2, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 3, 'tb1')
+        tdSql.checkData(6, 4, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 5, datetime.datetime(2021, 11, 11, 9, 0, 6))
+
+        tdSql.query('select upper(c8),floor(c3) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, None)
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, 3)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, 32767)
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, -32767)
+
+        tdSql.query('select upper(c8),upper(concat(c8,c14)) from tb1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '123')
+        tdSql.checkData(0, 1, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 0, '234')
+        tdSql.checkData(2, 1, '234 XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, None)
+        tdSql.checkData(4, 0, '456')
+        tdSql.checkData(4, 1, '456  WADE ZHANG')
+        tdSql.checkData(5, 0, '567')
+        tdSql.checkData(5, 1, '56727')
+        tdSql.checkData(6, 0, '678')
+        tdSql.checkData(6, 1, '678')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1 where c9 is not null and c15 is not null;')
+        tdSql.checkRows(5)
+        tdSql.checkData(0, 0, '123  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '456  WADE ZHANG')
+        tdSql.checkData(3, 0, '56727')
+        tdSql.checkData(4, 0, '678')
+
+        tdSql.query('select upper(c14) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '')
+        tdSql.checkData(1, 0, '27')
+        tdSql.checkData(2, 0, '  WADE ZHANG')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, ' XIAOBO ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '  TAOSDATA  ')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1 order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '678')
+        tdSql.checkData(1, 0, '56727')
+        tdSql.checkData(2, 0, '456  WADE ZHANG')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '234 XIAOBO ')
+        tdSql.checkData(5, 0, None)
+        tdSql.checkData(6, 0, '123  TAOSDATA  ')
+
+        tdSql.query('select upper(concat(c8,c14)) from tb1 order by ts desc limit 3 offset 2;')
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 0, '456  WADE ZHANG')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '234 XIAOBO ')
+
+        tdSql.query('select upper(c14) from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  WADE ZHANG')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TAOSDATA  ')
+        tdSql.checkData(8, 0, '  JEFF TAO')
+        tdSql.checkData(9, 0, '  STEVEN LI')
+        tdSql.checkData(10, 0, '  WADE ZHANG')
+        tdSql.checkData(11, 0, ' SIMONGUAN')
+        tdSql.checkData(12, 0, ' PH. D. LIAO')
+        tdSql.checkData(13, 0, ' HONGZE CHENG ')
+
+        tdSql.query('select upper(c14) from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select upper(c14),t1 from stb1 order by ts desc;')
+        tdSql.checkRows(14)
+
+        tdSql.query('select upper(c15),tbname from stb1;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(0, 1, 'tb1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'tb1')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'tb1')
+        tdSql.checkData(3, 0, 'BOXIAO')
+        tdSql.checkData(3, 1, 'tb1')
+        tdSql.checkData(4, 0, ' WADE ZHANG  ')
+        tdSql.checkData(4, 1, 'tb1')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'tb1')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, 'tb1')
+        tdSql.checkData(7, 0, '  TDENGINE  ')
+        tdSql.checkData(7, 1, 'tb2')
+        tdSql.checkData(8, 0, 'JEFF TAO')
+        tdSql.checkData(8, 1, 'tb2')
+        tdSql.checkData(9, 0, 'STEVEN LI')
+        tdSql.checkData(9, 1, 'tb2')
+        tdSql.checkData(10, 0, ' WADE ZHANG  ')
+        tdSql.checkData(10, 1, 'tb2')
+        tdSql.checkData(11, 0, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(11, 1, 'tb2')
+        tdSql.checkData(12, 0, 'HAOJUN LIAO  ')
+        tdSql.checkData(12, 1, 'tb2')
+        tdSql.checkData(13, 0, '  HONGZECHENG')
+        tdSql.checkData(13, 1, 'tb2')
+
+        tdSql.query('select upper(c15),tbname from stb1 where t1 > 1;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(0, 1, 'tb2')
+        tdSql.checkData(1, 0, 'JEFF TAO')
+        tdSql.checkData(1, 1, 'tb2')
+        tdSql.checkData(2, 0, 'STEVEN LI')
+        tdSql.checkData(2, 1, 'tb2')
+        tdSql.checkData(3, 0, ' WADE ZHANG  ')
+        tdSql.checkData(3, 1, 'tb2')
+        tdSql.checkData(4, 0, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(4, 1, 'tb2')
+        tdSql.checkData(5, 0, 'HAOJUN LIAO  ')
+        tdSql.checkData(5, 1, 'tb2')
+        tdSql.checkData(6, 0, '  HONGZECHENG')
+        tdSql.checkData(6, 1, 'tb2')
+
+        tdSql.query('select upper(c8),upper(c14) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(0, 1, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, 'BCD')
+        tdSql.checkData(1, 1, '  JEFF TAO')
+        tdSql.checkData(2, 0, 'CDE')
+        tdSql.checkData(2, 1, '  STEVEN LI')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(3, 1, '  WADE ZHANG')
+        tdSql.checkData(4, 0, 'EFG')
+        tdSql.checkData(4, 1, ' SIMONGUAN')
+        tdSql.checkData(5, 0, 'F GH')
+        tdSql.checkData(5, 1, ' PH. D. LIAO')
+        tdSql.checkData(6, 0, 'GHI  ')
+        tdSql.checkData(6, 1, ' HONGZE CHENG ')
+
+        tdSql.query('select upper(c8),upper(c14) from tbn order by ts desc;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'GHI  ')
+        tdSql.checkData(0, 1, ' HONGZE CHENG ')
+        tdSql.checkData(1, 0, 'F GH')
+        tdSql.checkData(1, 1, ' PH. D. LIAO')
+        tdSql.checkData(2, 0, 'EFG')
+        tdSql.checkData(2, 1, ' SIMONGUAN')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(3, 1, '  WADE ZHANG')
+        tdSql.checkData(4, 0, 'CDE')
+        tdSql.checkData(4, 1, '  STEVEN LI')
+        tdSql.checkData(5, 0, 'BCD')
+        tdSql.checkData(5, 1, '  JEFF TAO')
+        tdSql.checkData(6, 0, 'ABC')
+        tdSql.checkData(6, 1, '  TAOSDATA  ')
+
+        tdSql.query('select upper(upper(c8)) from tbn;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(1, 0, 'BCD')
+        tdSql.checkData(2, 0, 'CDE')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(4, 0, 'EFG')
+        tdSql.checkData(5, 0, 'F GH')
+        tdSql.checkData(6, 0, 'GHI  ')
+
+        tdSql.query('select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 interval(1s));')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+
+        tdSql.query('select upper(c14) from (select * from stb1);')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TAOSDATA  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, ' XIAOBO ')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '  WADE ZHANG')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TAOSDATA  ')
+        tdSql.checkData(8, 0, '  JEFF TAO')
+        tdSql.checkData(9, 0, '  STEVEN LI')
+        tdSql.checkData(10, 0, '  WADE ZHANG')
+        tdSql.checkData(11, 0, ' SIMONGUAN')
+        tdSql.checkData(12, 0, ' PH. D. LIAO')
+        tdSql.checkData(13, 0, ' HONGZE CHENG ')
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null));")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '1.000000')
+        tdSql.checkData(1, 0, '2.000000')
+        tdSql.checkData(2, 0, '2.500000')
+        tdSql.checkData(3, 0, '4.000000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '66.500000')
+        tdSql.checkData(6, 0, '-60.000000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by ts desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '-60.000000')
+        tdSql.checkData(4, 0, '66.500000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '4.000000')
+        tdSql.checkData(7, 0, '2.500000')
+        tdSql.checkData(8, 0, '2.000000')
+        tdSql.checkData(9, 0, '1.000000')
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a desc;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, '66.500000')
+        tdSql.checkData(4, 0, '4.500000')
+        tdSql.checkData(5, 0, '4.000000')
+        tdSql.checkData(6, 0, '2.500000')
+        tdSql.checkData(7, 0, '2.000000')
+        tdSql.checkData(8, 0, '1.000000')
+        tdSql.checkData(9, 0, '-60.000000')
+
+        tdSql.query("select upper(cast(a as binary(10))) from (select avg(c2) as a from stb1 where ts >= '2021-11-11 09:00:00.000' and ts <= '2021-11-11 09:00:09.000' interval(1s) fill(null)) order by a;")
+        tdSql.checkRows(10)
+        tdSql.checkData(0, 0, '-60.000000')
+        tdSql.checkData(1, 0, '1.000000')
+        tdSql.checkData(2, 0, '2.000000')
+        tdSql.checkData(3, 0, '2.500000')
+        tdSql.checkData(4, 0, '4.000000')
+        tdSql.checkData(5, 0, '4.500000')
+        tdSql.checkData(6, 0, '66.500000')
+        tdSql.checkData(7, 0, None)
+        tdSql.checkData(8, 0, None)
+        tdSql.checkData(9, 0, None)
+
+        tdSql.query('select upper(cast(a as binary(10))) from (select abs(c2) as a from tb1);')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '1')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, '2')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(4, 0, '4')
+        tdSql.checkData(5, 0, '127')
+        tdSql.checkData(6, 0, '127')
+
+        tdSql.query('select upper(tb1.c15),upper(tb2.c15) from tb1,tb2 where tb1.ts=tb2.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(0, 1, '  TDENGINE  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'JEFF TAO')
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(2, 1, 'STEVEN LI')
+        tdSql.checkData(3, 0, 'BOXIAO')
+        tdSql.checkData(3, 1, ' WADE ZHANG  ')
+        tdSql.checkData(4, 0, ' WADE ZHANG  ')
+        tdSql.checkData(4, 1, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(5, 1, 'HAOJUN LIAO  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  HONGZECHENG')
+
+        tdSql.query('select upper(c15) from tb1 union all select upper(c15) from tb2;')
+        tdSql.checkRows(14)
+        tdSql.checkData(0, 0, '  TDENGINE  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(2, 0, None)
+        tdSql.checkData(3, 0, 'BOXIAO')
+        tdSql.checkData(4, 0, ' WADE ZHANG  ')
+        tdSql.checkData(5, 0, '278')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(7, 0, '  TDENGINE  ')
+        tdSql.checkData(8, 0, 'JEFF TAO')
+        tdSql.checkData(9, 0, 'STEVEN LI')
+        tdSql.checkData(10, 0, ' WADE ZHANG  ')
+        tdSql.checkData(11, 0, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(12, 0, 'HAOJUN LIAO  ')
+        tdSql.checkData(13, 0, '  HONGZECHENG')
+
+        tdSql.query('select upper(stb1.c14),upper(stba.c15) from stb1,stba where stb1.t1=stba.t1 and stb1.ts=stba.ts;')
+        tdSql.checkRows(7)
+        tdSql.checkData(0, 0, '  TAOSDATA  ')
+        tdSql.checkData(0, 1, '  TDENGINE  ')
+        tdSql.checkData(1, 0, None)
+        tdSql.checkData(1, 1, 'JEFF TAO')
+        tdSql.checkData(2, 0, ' XIAOBO ')
+        tdSql.checkData(2, 1, 'STEVEN LI')
+        tdSql.checkData(3, 0, None)
+        tdSql.checkData(3, 1, ' WADE ZHANG  ')
+        tdSql.checkData(4, 0, '  WADE ZHANG')
+        tdSql.checkData(4, 1, 'SHENGLIANG GUAN  ')
+        tdSql.checkData(5, 0, '27')
+        tdSql.checkData(5, 1, 'HAOJUN LIAO  ')
+        tdSql.checkData(6, 0, '')
+        tdSql.checkData(6, 1, '  HONGZECHENG')
+
+        tdSql.error('select upper(c14) as a from stb1 union all select upper(c15) as a from stba;')
+
+        tdSql.query('select upper(c8) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'ABC')
+        tdSql.checkData(1, 0, 'BCD')
+        tdSql.checkData(2, 0, 'CDE')
+        tdSql.checkData(3, 0, 'DEF')
+        tdSql.checkData(4, 0, 'EFG')
+        tdSql.checkData(5, 0, 'F GH')
+        tdSql.checkData(6, 0, 'GHI  ')
+        tdSql.checkData(7, 0, 'GHI  ')
+        tdSql.checkData(8, 0, ' TAOS DATA  ')
+        tdSql.checkData(9, 0, ' TAOS DATA  ')
+        tdSql.checkData(10, 0, 'ABC')
+        tdSql.checkData(11, 0, 'BCD')
+        tdSql.checkData(12, 0, 'CDE')
+        tdSql.checkData(13, 0, 'DEF')
+        tdSql.checkData(14, 0, 'EFG')
+        tdSql.checkData(15, 0, 'F GH')
+        tdSql.checkData(16, 0, 'GHI  ')
+        tdSql.checkData(17, 0, 'GHI  ')
+        tdSql.checkData(18, 0, ' TAOS DATA  ')
+        tdSql.checkData(19, 0, ' TAOS DATA  ')
+        tdSql.checkData(20, 0, 'ABC')
+        tdSql.checkData(21, 0, 'BCD')
+        tdSql.checkData(22, 0, 'CDE')
+        tdSql.checkData(23, 0, 'DEF')
+        tdSql.checkData(24, 0, 'EFG')
+        tdSql.checkData(25, 0, 'F GH')
+        tdSql.checkData(26, 0, 'GHI  ')
+        tdSql.checkData(27, 0, 'GHI  ')
+        tdSql.checkData(28, 0, ' TAOS DATA  ')
+        tdSql.checkData(29, 0, ' TAOS DATA  ')
+
+        tdSql.query('select upper(c9) from stba;')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, 'ABCD')
+        tdSql.checkData(1, 0, 'BCDE')
+        tdSql.checkData(2, 0, 'CDEF')
+        tdSql.checkData(3, 0, 'DEFG')
+        tdSql.checkData(4, 0, 'EFGH')
+        tdSql.checkData(5, 0, ' FGHK ')
+        tdSql.checkData(6, 0, '  GHIJ ')
+        tdSql.checkData(7, 0, '  涛思数据 ')
+        tdSql.checkData(8, 0, '  涛思数据 ')
+        tdSql.checkData(9, 0, '  涛思数据2022 ')
+        tdSql.checkData(10, 0, 'ABCD')
+        tdSql.checkData(11, 0, 'BCDE')
+        tdSql.checkData(12, 0, 'CDEF')
+        tdSql.checkData(13, 0, 'DEFG')
+        tdSql.checkData(14, 0, 'EFGH')
+        tdSql.checkData(15, 0, ' FGHK ')
+        tdSql.checkData(16, 0, '  GHIJ ')
+        tdSql.checkData(17, 0, '  涛思数据 ')
+        tdSql.checkData(18, 0, '  涛思数据 ')
+        tdSql.checkData(19, 0, '  涛思数据2022 ')
+        tdSql.checkData(20, 0, 'ABCD')
+        tdSql.checkData(21, 0, 'BCDE')
+        tdSql.checkData(22, 0, 'CDEF')
+        tdSql.checkData(23, 0, 'DEFG')
+        tdSql.checkData(24, 0, 'EFGH')
+        tdSql.checkData(25, 0, ' FGHK ')
+        tdSql.checkData(26, 0, '  GHIJ ')
+        tdSql.checkData(27, 0, '  涛思数据 ')
+        tdSql.checkData(28, 0, '  涛思数据 ')
+        tdSql.checkData(29, 0, '  涛思数据2022 ')
+
+        tdSql.query('select upper(cast(min(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select upper(cast(max(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9')
+
+        tdSql.query('select upper(cast(count(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '30')
+
+        tdSql.query('select upper(cast(sum(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '135')
+
+        tdSql.query('select upper(cast(avg(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.500000')
+
+        tdSql.query('select upper(cast(percentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.900000')
+
+        tdSql.query('select upper(cast(apercentile(c2, 10) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select upper(cast(stddev(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '2.872281')
+
+        tdSql.query('select upper(cast(spread(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '9.000000')
+
+        tdSql.query('select upper(cast(twa(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '4.637931')
+
+        tdSql.error('select upper(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.query('select upper(cast(interp(c2) as binary(20))) from tba1 every(1s)')
+        tdSql.checkRows(30)
+        tdSql.checkData(0, 0, datetime.datetime(2021, 11, 11, 9, 0))
+        tdSql.checkData(0, 1, '1')
+        tdSql.checkData(1, 0, datetime.datetime(2021, 11, 11, 9, 0, 1))
+        tdSql.checkData(1, 1, '2')
+        tdSql.checkData(2, 0, datetime.datetime(2021, 11, 11, 9, 0, 2))
+        tdSql.checkData(2, 1, '3')
+        tdSql.checkData(3, 0, datetime.datetime(2021, 11, 11, 9, 0, 3))
+        tdSql.checkData(3, 1, '4')
+        tdSql.checkData(4, 0, datetime.datetime(2021, 11, 11, 9, 0, 4))
+        tdSql.checkData(4, 1, '5')
+        tdSql.checkData(5, 0, datetime.datetime(2021, 11, 11, 9, 0, 5))
+        tdSql.checkData(5, 1, '6')
+        tdSql.checkData(6, 0, datetime.datetime(2021, 11, 11, 9, 0, 6))
+        tdSql.checkData(6, 1, '7')
+        tdSql.checkData(7, 0, datetime.datetime(2021, 11, 11, 9, 0, 7))
+        tdSql.checkData(7, 1, '8')
+        tdSql.checkData(8, 0, datetime.datetime(2021, 11, 11, 9, 0, 8))
+        tdSql.checkData(8, 1, '9')
+        tdSql.checkData(9, 0, datetime.datetime(2021, 11, 11, 9, 0, 9))
+        tdSql.checkData(9, 1, '0')
+        tdSql.checkData(10, 0, datetime.datetime(2021, 11, 11, 9, 0, 10))
+        tdSql.checkData(10, 1, '1')
+        tdSql.checkData(11, 0, datetime.datetime(2021, 11, 11, 9, 0, 11))
+        tdSql.checkData(11, 1, '2')
+        tdSql.checkData(12, 0, datetime.datetime(2021, 11, 11, 9, 0, 12))
+        tdSql.checkData(12, 1, '3')
+        tdSql.checkData(13, 0, datetime.datetime(2021, 11, 11, 9, 0, 13))
+        tdSql.checkData(13, 1, '4')
+        tdSql.checkData(14, 0, datetime.datetime(2021, 11, 11, 9, 0, 14))
+        tdSql.checkData(14, 1, '5')
+        tdSql.checkData(15, 0, datetime.datetime(2021, 11, 11, 9, 0, 15))
+        tdSql.checkData(15, 1, '6')
+        tdSql.checkData(16, 0, datetime.datetime(2021, 11, 11, 9, 0, 16))
+        tdSql.checkData(16, 1, '7')
+        tdSql.checkData(17, 0, datetime.datetime(2021, 11, 11, 9, 0, 17))
+        tdSql.checkData(17, 1, '8')
+        tdSql.checkData(18, 0, datetime.datetime(2021, 11, 11, 9, 0, 18))
+        tdSql.checkData(18, 1, '9')
+        tdSql.checkData(19, 0, datetime.datetime(2021, 11, 11, 9, 0, 19))
+        tdSql.checkData(19, 1, '0')
+        tdSql.checkData(20, 0, datetime.datetime(2021, 11, 11, 9, 0, 20))
+        tdSql.checkData(20, 1, '1')
+        tdSql.checkData(21, 0, datetime.datetime(2021, 11, 11, 9, 0, 21))
+        tdSql.checkData(21, 1, '2')
+        tdSql.checkData(22, 0, datetime.datetime(2021, 11, 11, 9, 0, 22))
+        tdSql.checkData(22, 1, '3')
+        tdSql.checkData(23, 0, datetime.datetime(2021, 11, 11, 9, 0, 23))
+        tdSql.checkData(23, 1, '4')
+        tdSql.checkData(24, 0, datetime.datetime(2021, 11, 11, 9, 0, 24))
+        tdSql.checkData(24, 1, '5')
+        tdSql.checkData(25, 0, datetime.datetime(2021, 11, 11, 9, 0, 25))
+        tdSql.checkData(25, 1, '6')
+        tdSql.checkData(26, 0, datetime.datetime(2021, 11, 11, 9, 0, 26))
+        tdSql.checkData(26, 1, '7')
+        tdSql.checkData(27, 0, datetime.datetime(2021, 11, 11, 9, 0, 27))
+        tdSql.checkData(27, 1, '8')
+        tdSql.checkData(28, 0, datetime.datetime(2021, 11, 11, 9, 0, 28))
+        tdSql.checkData(28, 1, '9')
+        tdSql.checkData(29, 0, datetime.datetime(2021, 11, 11, 9, 0, 29))
+        tdSql.checkData(29, 1, '0')
+
+        tdSql.error('select upper(cast(interp(c2) as binary(20))) stba every(1s) group by tbname;')
+
+        tdSql.query('select upper(cast(elapsed(ts) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '29000.000000')
+
+        tdSql.query('select upper(cast(rate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.896552')
+
+        tdSql.query('select upper(cast(irate(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0.000000')
+
+        tdSql.query('select upper(cast(first(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '1')
+
+        tdSql.query('select upper(cast(last(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.query('select upper(cast(last_row(c2) as binary(20))) from tba1;')
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, '0')
+
+        tdSql.error('select upper(cast(top(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(bottom(c2, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(leastsquares(c2, 1, 1) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(derivative(c2, 1s, 0) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(diff(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(csum(c2) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(mavg(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(sample(c2,2) as binary(20))) from tba1;')
+
+        tdSql.error('select upper(cast(_block_dist() as binary(20))) from tba1;')
+
+
+        tdSql.execute('drop database upper_func')
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/develop-test/fulltest-query.sh

@@ -9,3 +9,7 @@ python3 ./test.py -f 2-query/escape.py
 python3 ./test.py -f 2-query/func_compare.py
 python3 ./test.py -f 2-query/diff_ignore_negative.py
 python3 ./test.py -f 2-query/diff_funcs.py
+python3 ./test.py -f 2-query/lower_func.py
+python3 ./test.py -f 2-query/uppper_func.py
+python3 ./test.py -f 2-query/ltrim_func.py
+python3 ./test.py -f 2-query/rtrim_func.py