Merge pull request #13882 from taosdata/test/distributed_aggregate

test: add case for max about distribute plan

tests/system-test/2-query/distribute_agg_apercentile.py

+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+import random 
+
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143,
+    "maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.vnode_disbutes = None
+        self.ts = 1537146000000
+
+    def prepare_datas_of_distribute(self):
+        
+        # prepate datas for  20 tables distributed at different vgroups
+        tdSql.execute("create database if not exists testdb keep 3650 duration 1000 vgroups 5")
+        tdSql.execute(" use testdb ")
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
+            '''
+        )
+
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(20):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+
+        for i in range(1,21):
+            if i ==1 or i == 4:
+                continue
+            else:
+                tbname = "ct"+f'{i}'
+                for j in range(9):
+                    tdSql.execute(
+                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+
+        tdLog.info(" prepare data for distributed_aggregate done! ")
+
+    def check_distribute_datas(self):
+        # get vgroup_ids of all
+        tdSql.query("show vgroups ")
+        vgroups = tdSql.queryResult
+
+        vnode_tables={}
+        
+        for vgroup_id in vgroups:
+            vnode_tables[vgroup_id[0]]=[]
+        
+
+        # check sub_table of per vnode ,make sure sub_table has been distributed
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            vnode_tables[table_name[6]].append(table_name[0]) 
+        self.vnode_disbutes = vnode_tables
+
+        count = 0
+        for k ,v in vnode_tables.items():
+            if len(v)>=2:
+                count+=1
+        if count < 2:
+            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")
+        
+    def distribute_agg_query(self):
+        # basic filter
+        tdSql.query("select apercentile(c1 , 20) from stb1 where c1 is null")
+        tdSql.checkRows(0)
+
+        tdSql.query("select apercentile(c1 , 20) from stb1 where t1=1")
+        tdSql.checkData(0,0,2.800000000)
+
+        tdSql.query("select apercentile(c1+c2 ,100) from stb1 where c1 =1 ")
+        tdSql.checkData(0,0,11112.000000000)
+
+        tdSql.query("select apercentile(c1 ,10 ) from stb1 where tbname=\"ct2\"")
+        tdSql.checkData(0,0,2.000000000)
+
+        tdSql.query("select apercentile(c1,20) from stb1 partition by tbname")
+        tdSql.checkRows(20)
+
+        tdSql.query("select apercentile(c1,20) from stb1 where t1> 4  partition by tbname")
+        tdSql.checkRows(15)
+
+        # union all 
+        tdSql.query("select apercentile(c1,20) from stb1 union all select apercentile(c1,20) from stb1 ")
+        tdSql.checkRows(2)
+        tdSql.checkData(0,0,7.389181281)
+
+        # join 
+
+        tdSql.execute(" create database if not exists db ")
+        tdSql.execute(" use db ")
+        tdSql.execute(" create stable st (ts timestamp , c1 int ,c2 float) tags(t1 int) ")
+        tdSql.execute(" create table tb1 using st tags(1) ")
+        tdSql.execute(" create table tb2 using st tags(2) ")
+
+        
+        for i in range(10):
+            ts = i*10 + self.ts
+            tdSql.execute(f" insert into tb1 values({ts},{i},{i}.0)")
+            tdSql.execute(f" insert into tb2 values({ts},{i},{i}.0)")
+
+        tdSql.query("select apercentile(tb1.c1,100), apercentile(tb2.c2,100) from tb1, tb2 where tb1.ts=tb2.ts")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,9.000000000)
+        tdSql.checkData(0,0,9.000000000)
+
+        # group by 
+        tdSql.execute(" use testdb ")
+        tdSql.query(" select max(c1),c1  from stb1 group by t1 ")
+        tdSql.checkRows(20)
+        tdSql.query(" select max(c1),c1  from stb1 group by c1 ")
+        tdSql.checkRows(30)
+        tdSql.query(" select max(c1),c2  from stb1 group by c2 ")
+        tdSql.checkRows(31)
+
+        # partition by tbname or partition by tag
+        tdSql.query("select apercentile(c1 ,10)from stb1 partition by tbname")
+        query_data = tdSql.queryResult
+
+        # nest query for support max
+        tdSql.query("select apercentile(c2+2,10)+1 from (select max(c1) c2  from stb1)")
+        tdSql.checkData(0,0,31.000000000)
+        tdSql.query("select apercentile(c1+2,10)+1  as c2 from (select ts ,c1 ,c2  from stb1)")
+        tdSql.checkData(0,0,7.560701700)
+        tdSql.query("select apercentile(a+2,10)+1  as c2 from (select ts ,abs(c1) a ,c2  from stb1)")
+        tdSql.checkData(0,0,7.560701700)
+
+        # mixup with other functions
+        tdSql.query("select max(c1),count(c1),last(c2,c3),spread(c1), apercentile(c1,10) from stb1")
+        tdSql.checkData(0,0,28)
+        tdSql.checkData(0,1,184)
+        tdSql.checkData(0,2,-99999)
+        tdSql.checkData(0,3,-999)
+        tdSql.checkData(0,4,28.000000000)
+        tdSql.checkData(0,5,4.560701700)
+
+    def run(self):
+
+        self.prepare_datas_of_distribute()
+        self.check_distribute_datas()
+        self.distribute_agg_query()
+
+    
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/distribute_agg_count.py

+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+import random 
+
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143,
+    "maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.vnode_disbutes = None
+        self.ts = 1537146000000
+
+
+    def check_count_functions(self, tbname , col_name):
+
+        max_sql = f"select count({col_name}) from {tbname};"
+
+        same_sql = f"select sum(c) from (select {col_name} ,1 as c  from {tbname} where {col_name} is not null) "
+
+        tdSql.query(max_sql)
+        max_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if max_result !=same_result:
+            tdLog.exit(" count function work not as expected, sql : %s "% max_sql)
+        else:
+            tdLog.info(" count function work as expected, sql : %s "% max_sql)
+
+
+    def prepare_datas_of_distribute(self):
+        
+        # prepate datas for  20 tables distributed at different vgroups
+        tdSql.execute("create database if not exists testdb keep 3650 duration 1000 vgroups 5")
+        tdSql.execute(" use testdb ")
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
+            '''
+        )
+
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(20):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+
+        for i in range(1,21):
+            if i ==1 or i == 4:
+                continue
+            else:
+                tbname = "ct"+f'{i}'
+                for j in range(9):
+                    tdSql.execute(
+                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+
+        tdLog.info(" prepare data for distributed_aggregate done! ")
+
+    def check_distribute_datas(self):
+        # get vgroup_ids of all
+        tdSql.query("show vgroups ")
+        vgroups = tdSql.queryResult
+
+        vnode_tables={}
+        
+        for vgroup_id in vgroups:
+            vnode_tables[vgroup_id[0]]=[]
+        
+
+        # check sub_table of per vnode ,make sure sub_table has been distributed
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            vnode_tables[table_name[6]].append(table_name[0]) 
+        self.vnode_disbutes = vnode_tables
+
+        count = 0
+        for k ,v in vnode_tables.items():
+            if len(v)>=2:
+                count+=1
+        if count < 2:
+            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")
+
+    def check_count_distribute_diff_vnode(self,col_name):
+    
+        vgroup_ids = []
+        for k ,v in self.vnode_disbutes.items():
+            if len(v)>=2:
+                vgroup_ids.append(k)
+        
+        distribute_tbnames = []
+        
+        for vgroup_id in vgroup_ids:
+            vnode_tables = self.vnode_disbutes[vgroup_id]
+            distribute_tbnames.append(random.sample(vnode_tables,1)[0])
+        tbname_ins = ""
+        for tbname in distribute_tbnames:
+            tbname_ins += "'%s' ,"%tbname
+
+        tbname_filters = tbname_ins[:-1]
+        
+        max_sql = f"select count({col_name}) from stb1 where tbname in ({tbname_filters});"
+
+        same_sql = f"select sum(c) from (select {col_name} ,1 as c  from stb1 where tbname in ({tbname_filters}) and {col_name} is not null) "
+
+        tdSql.query(max_sql)
+        max_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if max_result !=same_result:
+            tdLog.exit(" count function work not as expected, sql : %s "% max_sql)
+        else:
+            tdLog.info(" count function work as expected, sql : %s "% max_sql)
+
+    def check_count_status(self):
+        # check max function work status 
+        
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            tablenames.append(table_name[0])
+
+        tdSql.query("desc stb1")
+        col_names = tdSql.queryResult
+        
+        colnames = []
+        for col_name in col_names:
+            if col_name[1] in ["INT" ,"BIGINT" ,"SMALLINT" ,"TINYINT" , "FLOAT" ,"DOUBLE"]:
+                colnames.append(col_name[0])
+        
+        for tablename in tablenames:
+            for colname in colnames:
+                self.check_count_functions(tablename,colname)
+
+        # check max function for different vnode 
+
+        for colname in colnames:
+            if colname.startswith("c"):
+                self.check_count_distribute_diff_vnode(colname)
+            else:
+                # self.check_count_distribute_diff_vnode(colname) # bug for tag 
+                pass
+
+        
+    def distribute_agg_query(self):
+        # basic filter
+        tdSql.query("select count(c1) from stb1 ")
+        tdSql.checkData(0,0,184)
+
+        tdSql.query("select count(c1) from stb1 where t1=1")
+        tdSql.checkData(0,0,9)
+
+        tdSql.query("select count(c1+c2) from stb1 where c1 =1 ")
+        tdSql.checkData(0,0,2)
+
+        tdSql.query("select count(c1) from stb1 where tbname=\"ct2\"")
+        tdSql.checkData(0,0,9)
+
+        tdSql.query("select count(c1) from stb1 partition by tbname")
+        tdSql.checkRows(20)
+
+        tdSql.query("select count(c1) from stb1 where t1> 4  partition by tbname")
+        tdSql.checkRows(15)
+
+        # union all 
+        tdSql.query("select count(c1) from stb1 union all select count(c1) from stb1 ")
+        tdSql.checkRows(2)
+        tdSql.checkData(0,0,184)
+
+        # join 
+
+        tdSql.execute(" create database if not exists db ")
+        tdSql.execute(" use db ")
+        tdSql.execute(" create stable st (ts timestamp , c1 int ,c2 float) tags(t1 int) ")
+        tdSql.execute(" create table tb1 using st tags(1) ")
+        tdSql.execute(" create table tb2 using st tags(2) ")
+
+        
+        for i in range(10):
+            ts = i*10 + self.ts
+            tdSql.execute(f" insert into tb1 values({ts},{i},{i}.0)")
+            tdSql.execute(f" insert into tb2 values({ts},{i},{i}.0)")
+
+        tdSql.query("select count(tb1.c1), count(tb2.c2) from tb1, tb2 where tb1.ts=tb2.ts")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,10)
+        tdSql.checkData(0,1,10)
+
+        # group by 
+        tdSql.execute(" use testdb ")
+
+        tdSql.query(" select count(*)  from stb1 ")
+        tdSql.checkData(0,0,187)
+        tdSql.query(" select count(*)  from stb1 group by t1 ")
+        tdSql.checkRows(20)
+        tdSql.query(" select count(*)  from stb1 group by c1 ")
+        tdSql.checkRows(30)
+        tdSql.query(" select count(*)  from stb1 group by c2 ")
+        tdSql.checkRows(31)
+
+        # partition by tbname or partition by tag
+        tdSql.query("select max(c1),tbname from stb1 partition by tbname")
+        query_data = tdSql.queryResult
+        
+        for row in query_data:
+            tbname = row[1]
+            tdSql.query(" select max(c1) from %s "%tbname)
+            tdSql.checkData(0,0,row[0])
+
+        tdSql.query("select max(c1),tbname from stb1 partition by t1")
+        query_data = tdSql.queryResult
+        
+        for row in query_data:
+            tbname = row[1]
+            tdSql.query(" select max(c1) from %s "%tbname)
+            tdSql.checkData(0,0,row[0])
+
+        # nest query for support max
+        tdSql.query("select abs(c2+2)+1 from (select count(c1) c2  from stb1)")
+        tdSql.checkData(0,0,187.000000000)
+        tdSql.query("select count(c1+2)  as c2 from (select ts ,c1 ,c2  from stb1)")
+        tdSql.checkData(0,0,184)
+        tdSql.query("select count(a+2)  as c2 from (select ts ,abs(c1) a ,c2  from stb1)")
+        tdSql.checkData(0,0,184)
+
+        # mixup with other functions
+        tdSql.query("select max(c1),count(c1),last(c2,c3) from stb1")
+        tdSql.checkData(0,0,28)
+        tdSql.checkData(0,1,184)
+        tdSql.checkData(0,2,-99999)
+        tdSql.checkData(0,3,-999)
+
+    def run(self):
+
+        self.prepare_datas_of_distribute()
+        self.check_distribute_datas()
+        self.check_count_status()
+        self.distribute_agg_query()
+
+    
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/distribute_agg_max.py

+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+import random 
+
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143,
+    "maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.vnode_disbutes = None
+        self.ts = 1537146000000
+
+
+    def check_max_functions(self, tbname , col_name):
+
+        max_sql = f"select max({col_name}) from {tbname};"
+
+        same_sql = f"select {col_name} from {tbname} order by {col_name} desc limit 1"
+
+        tdSql.query(max_sql)
+        max_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if max_result !=same_result:
+            tdLog.exit(" max function work not as expected, sql : %s "% max_sql)
+        else:
+            tdLog.info(" max function work as expected, sql : %s "% max_sql)
+
+
+    def prepare_datas_of_distribute(self):
+        
+        # prepate datas for  20 tables distributed at different vgroups
+        tdSql.execute("create database if not exists testdb keep 3650 duration 1000 vgroups 5")
+        tdSql.execute(" use testdb ")
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
+            '''
+        )
+
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(20):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+
+        for i in range(1,21):
+            if i ==1 or i == 4:
+                continue
+            else:
+                tbname = "ct"+f'{i}'
+                for j in range(9):
+                    tdSql.execute(
+                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+
+        tdLog.info(" prepare data for distributed_aggregate done! ")
+
+    def check_distribute_datas(self):
+        # get vgroup_ids of all
+        tdSql.query("show vgroups ")
+        vgroups = tdSql.queryResult
+
+        vnode_tables={}
+        
+        for vgroup_id in vgroups:
+            vnode_tables[vgroup_id[0]]=[]
+        
+
+        # check sub_table of per vnode ,make sure sub_table has been distributed
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            vnode_tables[table_name[6]].append(table_name[0]) 
+        self.vnode_disbutes = vnode_tables
+
+        count = 0
+        for k ,v in vnode_tables.items():
+            if len(v)>=2:
+                count+=1
+        if count < 2:
+            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")
+
+    def check_max_distribute_diff_vnode(self,col_name):
+    
+        vgroup_ids = []
+        for k ,v in self.vnode_disbutes.items():
+            if len(v)>=2:
+                vgroup_ids.append(k)
+        
+        distribute_tbnames = []
+        
+        for vgroup_id in vgroup_ids:
+            vnode_tables = self.vnode_disbutes[vgroup_id]
+            distribute_tbnames.append(random.sample(vnode_tables,1)[0])
+        tbname_ins = ""
+        for tbname in distribute_tbnames:
+            tbname_ins += "'%s' ,"%tbname
+
+        tbname_filters = tbname_ins[:-1]
+        
+        max_sql = f"select max({col_name}) from stb1 where tbname in ({tbname_filters});"
+
+        same_sql = f"select {col_name} from stb1 where tbname in ({tbname_filters}) order by {col_name} desc limit 1"
+
+        tdSql.query(max_sql)
+        max_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if max_result !=same_result:
+            tdLog.exit(" max function work not as expected, sql : %s "% max_sql)
+        else:
+            tdLog.info(" max function work as expected, sql : %s "% max_sql)
+
+    def check_max_status(self):
+        # check max function work status 
+        
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            tablenames.append(table_name[0])
+
+        tdSql.query("desc stb1")
+        col_names = tdSql.queryResult
+        
+        colnames = []
+        for col_name in col_names:
+            if col_name[1] in ["INT" ,"BIGINT" ,"SMALLINT" ,"TINYINT" , "FLOAT" ,"DOUBLE"]:
+                colnames.append(col_name[0])
+        
+        for tablename in tablenames:
+            for colname in colnames:
+                self.check_max_functions(tablename,colname)
+
+        # check max function for different vnode 
+
+        for colname in colnames:
+            if colname.startswith("c"):
+                self.check_max_distribute_diff_vnode(colname)
+            else:
+                # self.check_max_distribute_diff_vnode(colname) # bug for tag 
+                pass
+
+        
+    def distribute_agg_query(self):
+        # basic filter
+        tdSql.query("select max(c1) from stb1 where c1 is null")
+        tdSql.checkRows(0)
+
+        tdSql.query("select max(c1) from stb1 where t1=1")
+        tdSql.checkData(0,0,10)
+
+        tdSql.query("select max(c1+c2) from stb1 where c1 =1 ")
+        tdSql.checkData(0,0,11112.000000000)
+
+        tdSql.query("select max(c1) from stb1 where tbname=\"ct2\"")
+        tdSql.checkData(0,0,10)
+
+        tdSql.query("select max(c1) from stb1 partition by tbname")
+        tdSql.checkRows(20)
+
+        tdSql.query("select max(c1) from stb1 where t1> 4  partition by tbname")
+        tdSql.checkRows(15)
+
+        # union all 
+        tdSql.query("select max(c1) from stb1 union all select max(c1) from stb1 ")
+        tdSql.checkRows(2)
+        tdSql.checkData(0,0,28)
+
+        # join 
+
+        tdSql.execute(" create database if not exists db ")
+        tdSql.execute(" use db ")
+        tdSql.execute(" create stable st (ts timestamp , c1 int ,c2 float) tags(t1 int) ")
+        tdSql.execute(" create table tb1 using st tags(1) ")
+        tdSql.execute(" create table tb2 using st tags(2) ")
+
+        
+        for i in range(10):
+            ts = i*10 + self.ts
+            tdSql.execute(f" insert into tb1 values({ts},{i},{i}.0)")
+            tdSql.execute(f" insert into tb2 values({ts},{i},{i}.0)")
+
+        tdSql.query("select max(tb1.c1), tb2.c2 from tb1, tb2 where tb1.ts=tb2.ts")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,9)
+        tdSql.checkData(0,0,9.00000)
+
+        # group by 
+        tdSql.execute(" use testdb ")
+        tdSql.query(" select max(c1),c1  from stb1 group by t1 ")
+        tdSql.checkRows(20)
+        tdSql.query(" select max(c1),c1  from stb1 group by c1 ")
+        tdSql.checkRows(30)
+        tdSql.query(" select max(c1),c2  from stb1 group by c2 ")
+        tdSql.checkRows(31)
+
+        # partition by tbname or partition by tag
+        tdSql.query("select max(c1),tbname from stb1 partition by tbname")
+        query_data = tdSql.queryResult
+        
+        for row in query_data:
+            tbname = row[1]
+            tdSql.query(" select max(c1) from %s "%tbname)
+            tdSql.checkData(0,0,row[0])
+
+        tdSql.query("select max(c1),tbname from stb1 partition by t1")
+        query_data = tdSql.queryResult
+        
+        for row in query_data:
+            tbname = row[1]
+            tdSql.query(" select max(c1) from %s "%tbname)
+            tdSql.checkData(0,0,row[0])
+
+        # nest query for support max
+        tdSql.query("select abs(c2+2)+1 from (select max(c1) c2  from stb1)")
+        tdSql.checkData(0,0,31.000000000)
+        tdSql.query("select max(c1+2)+1  as c2 from (select ts ,c1 ,c2  from stb1)")
+        tdSql.checkData(0,0,31.000000000)
+        tdSql.query("select max(a+2)+1  as c2 from (select ts ,abs(c1) a ,c2  from stb1)")
+        tdSql.checkData(0,0,31.000000000)
+
+        # mixup with other functions
+        tdSql.query("select max(c1),count(c1),last(c2,c3) from stb1")
+        tdSql.checkData(0,0,28)
+        tdSql.checkData(0,1,184)
+        tdSql.checkData(0,2,-99999)
+        tdSql.checkData(0,3,-999)
+
+    def run(self):
+
+        self.prepare_datas_of_distribute()
+        self.check_distribute_datas()
+        self.check_max_status()
+        self.distribute_agg_query()
+
+    
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/distribute_agg_min.py

+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+import random 
+
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143,
+    "maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.vnode_disbutes = None
+        self.ts = 1537146000000
+
+
+    def check_min_functions(self, tbname , col_name):
+
+        min_sql = f"select min({col_name}) from {tbname};"
+
+        same_sql = f"select {col_name} from {tbname} where {col_name} is not null order by {col_name} asc limit 1"
+
+        tdSql.query(min_sql)
+        min_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if min_result !=same_result:
+            tdLog.exit(" min function work not as expected, sql : %s "% min_sql)
+        else:
+            tdLog.info(" min function work as expected, sql : %s "% min_sql)
+
+
+    def prepare_datas_of_distribute(self):
+        
+        # prepate datas for  20 tables distributed at different vgroups
+        tdSql.execute("create database if not exists testdb keep 3650 duration 1000 vgroups 5")
+        tdSql.execute(" use testdb ")
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
+            '''
+        )
+
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(20):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+
+        for i in range(1,21):
+            if i ==1 or i == 4:
+                continue
+            else:
+                tbname = "ct"+f'{i}'
+                for j in range(9):
+                    tdSql.execute(
+                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+
+        tdLog.info(" prepare data for distributed_aggregate done! ")
+
+    def check_distribute_datas(self):
+        # get vgroup_ids of all
+        tdSql.query("show vgroups ")
+        vgroups = tdSql.queryResult
+
+        vnode_tables={}
+        
+        for vgroup_id in vgroups:
+            vnode_tables[vgroup_id[0]]=[]
+        
+
+        # check sub_table of per vnode ,make sure sub_table has been distributed
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            vnode_tables[table_name[6]].append(table_name[0]) 
+        self.vnode_disbutes = vnode_tables
+
+        count = 0
+        for k ,v in vnode_tables.items():
+            if len(v)>=2:
+                count+=1
+        if count < 2:
+            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")
+
+    def check_min_distribute_diff_vnode(self,col_name):
+    
+        vgroup_ids = []
+        for k ,v in self.vnode_disbutes.items():
+            if len(v)>=2:
+                vgroup_ids.append(k)
+        
+        distribute_tbnames = []
+        
+        for vgroup_id in vgroup_ids:
+            vnode_tables = self.vnode_disbutes[vgroup_id]
+            distribute_tbnames.append(random.sample(vnode_tables,1)[0])
+        tbname_ins = ""
+        for tbname in distribute_tbnames:
+            tbname_ins += "'%s' ,"%tbname
+
+        tbname_filters = tbname_ins[:-1]
+        
+        min_sql = f"select min({col_name}) from stb1 where tbname in ({tbname_filters});"
+
+        same_sql = f"select {col_name} from stb1 where tbname in ({tbname_filters}) and {col_name} is not null order by {col_name} asc limit 1"
+
+        tdSql.query(min_sql)
+        min_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if min_result !=same_result:
+            tdLog.exit(" min function work not as expected, sql : %s "% min_sql)
+        else:
+            tdLog.info(" min function work as expected, sql : %s "% min_sql)
+
+    def check_min_status(self):
+        # check max function work status 
+        
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            tablenames.append(table_name[0])
+
+        tdSql.query("desc stb1")
+        col_names = tdSql.queryResult
+        
+        colnames = []
+        for col_name in col_names:
+            if col_name[1] in ["INT" ,"BIGINT" ,"SMALLINT" ,"TINYINT" , "FLOAT" ,"DOUBLE"]:
+                colnames.append(col_name[0])
+        
+        for tablename in tablenames:
+            for colname in colnames:
+                self.check_min_functions(tablename,colname)
+
+        # check max function for different vnode 
+
+        for colname in colnames:
+            if colname.startswith("c"):
+                self.check_min_distribute_diff_vnode(colname)
+            else:
+                # self.check_min_distribute_diff_vnode(colname) # bug for tag 
+                pass
+
+        
+    def distribute_agg_query(self):
+        # basic filter
+        tdSql.query("select min(c1) from stb1 where c1 is null")
+        tdSql.checkRows(0)
+
+        tdSql.query("select min(c1) from stb1 where t1=1")
+        tdSql.checkData(0,0,2)
+
+        tdSql.query("select min(c1+c2) from stb1 where c1 =1 ")
+        tdSql.checkData(0,0,11112.000000000)
+
+        tdSql.query("select min(c1) from stb1 where tbname=\"ct2\"")
+        tdSql.checkData(0,0,2)
+
+        tdSql.query("select min(c1) from stb1 partition by tbname")
+        tdSql.checkRows(20)
+
+        tdSql.query("select min(c1) from stb1 where t1> 4  partition by tbname")
+        tdSql.checkRows(15)
+
+        # union all 
+        tdSql.query("select min(c1) from stb1 union all select min(c1) from stb1 ")
+        tdSql.checkRows(2)
+        tdSql.checkData(0,0,0)
+
+        # join 
+
+        tdSql.execute(" create database if not exists db ")
+        tdSql.execute(" use db ")
+        tdSql.execute(" create stable st (ts timestamp , c1 int ,c2 float) tags(t1 int) ")
+        tdSql.execute(" create table tb1 using st tags(1) ")
+        tdSql.execute(" create table tb2 using st tags(2) ")
+
+        
+        for i in range(10):
+            ts = i*10 + self.ts
+            tdSql.execute(f" insert into tb1 values({ts},{i},{i}.0)")
+            tdSql.execute(f" insert into tb2 values({ts},{i},{i}.0)")
+
+        tdSql.query("select min(tb1.c1), tb2.c2 from tb1, tb2 where tb1.ts=tb2.ts")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,0)
+        tdSql.checkData(0,0,0.00000)
+
+        # group by 
+        tdSql.execute(" use testdb ")
+        tdSql.query(" select min(c1),c1  from stb1 group by t1 ")
+        tdSql.checkRows(20)
+        tdSql.query(" select min(c1),c1  from stb1 group by c1 ")
+        tdSql.checkRows(30)
+        tdSql.query(" select min(c1),c2  from stb1 group by c2 ")
+        tdSql.checkRows(31)
+
+        # partition by tbname or partition by tag
+        tdSql.query("select min(c1),tbname from stb1 partition by tbname")
+        query_data = tdSql.queryResult
+        
+        for row in query_data:
+            tbname = row[1]
+            tdSql.query(" select min(c1) from %s "%tbname)
+            tdSql.checkData(0,0,row[0])
+
+        tdSql.query("select min(c1),tbname from stb1 partition by t1")
+        query_data = tdSql.queryResult
+        
+        for row in query_data:
+            tbname = row[1]
+            tdSql.query(" select min(c1) from %s "%tbname)
+            tdSql.checkData(0,0,row[0])
+
+        # nest query for support max
+        tdSql.query("select abs(c2+2)+1 from (select min(c1) c2  from stb1)")
+        tdSql.checkData(0,0,3.000000000)
+        tdSql.query("select min(c1+2)+1  as c2 from (select ts ,c1 ,c2  from stb1)")
+        tdSql.checkData(0,0,3.000000000)
+        tdSql.query("select min(a+2)+1  as c2 from (select ts ,abs(c1) a ,c2  from stb1)")
+        tdSql.checkData(0,0,3.000000000)
+
+        # mixup with other functions
+        tdSql.query("select max(c1),count(c1),last(c2,c3),min(c1) from stb1")
+        tdSql.checkData(0,0,28)
+        tdSql.checkData(0,1,184)
+        tdSql.checkData(0,2,-99999)
+        tdSql.checkData(0,3,-999)
+        tdSql.checkData(0,4,0)
+
+    def run(self):
+
+        self.prepare_datas_of_distribute()
+        self.check_distribute_datas()
+        self.check_min_status()
+        self.distribute_agg_query()
+
+    
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/distribute_agg_spread.py

+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+import random 
+
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143,
+    "maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.vnode_disbutes = None
+        self.ts = 1537146000000
+
+
+    def check_spread_functions(self, tbname , col_name):
+
+        spread_sql = f"select spread({col_name}) from {tbname};"
+
+        same_sql = f"select max({col_name})-min({col_name}) from {tbname}"
+
+        tdSql.query(spread_sql)
+        spread_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if spread_result !=same_result:
+            tdLog.exit(" max function work not as expected, sql : %s "% spread_sql)
+        else:
+            tdLog.info(" max function work as expected, sql : %s "% spread_sql)
+
+
+    def prepare_datas_of_distribute(self):
+        
+        # prepate datas for  20 tables distributed at different vgroups
+        tdSql.execute("create database if not exists testdb keep 3650 duration 1000 vgroups 5")
+        tdSql.execute(" use testdb ")
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
+            '''
+        )
+
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(20):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+
+        for i in range(1,21):
+            if i ==1 or i == 4:
+                continue
+            else:
+                tbname = "ct"+f'{i}'
+                for j in range(9):
+                    tdSql.execute(
+                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+
+        tdLog.info(" prepare data for distributed_aggregate done! ")
+
+    def check_distribute_datas(self):
+        # get vgroup_ids of all
+        tdSql.query("show vgroups ")
+        vgroups = tdSql.queryResult
+
+        vnode_tables={}
+        
+        for vgroup_id in vgroups:
+            vnode_tables[vgroup_id[0]]=[]
+        
+
+        # check sub_table of per vnode ,make sure sub_table has been distributed
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            vnode_tables[table_name[6]].append(table_name[0]) 
+        self.vnode_disbutes = vnode_tables
+
+        count = 0
+        for k ,v in vnode_tables.items():
+            if len(v)>=2:
+                count+=1
+        if count < 2:
+            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")
+
+    def check_spread_distribute_diff_vnode(self,col_name):
+    
+        vgroup_ids = []
+        for k ,v in self.vnode_disbutes.items():
+            if len(v)>=2:
+                vgroup_ids.append(k)
+        
+        distribute_tbnames = []
+        
+        for vgroup_id in vgroup_ids:
+            vnode_tables = self.vnode_disbutes[vgroup_id]
+            distribute_tbnames.append(random.sample(vnode_tables,1)[0])
+        tbname_ins = ""
+        for tbname in distribute_tbnames:
+            tbname_ins += "'%s' ,"%tbname
+
+        tbname_filters = tbname_ins[:-1]
+        
+        spread_sql = f"select spread({col_name}) from stb1 where tbname in ({tbname_filters})"
+
+        same_sql = f"select max({col_name}) - min({col_name}) from stb1 where tbname in ({tbname_filters})"
+
+        tdSql.query(spread_sql)
+        spread_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if spread_result !=same_result:
+            tdLog.exit(" spread function work not as expected, sql : %s "% spread_sql)
+        else:
+            tdLog.info(" spread function work as expected, sql : %s "% spread_sql)
+
+    def check_spread_status(self):
+        # check max function work status 
+        
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            tablenames.append(table_name[0])
+
+        tdSql.query("desc stb1")
+        col_names = tdSql.queryResult
+        
+        colnames = []
+        for col_name in col_names:
+            if col_name[1] in ["INT" ,"BIGINT" ,"SMALLINT" ,"TINYINT" , "FLOAT" ,"DOUBLE"]:
+                colnames.append(col_name[0])
+        
+        for tablename in tablenames:
+            for colname in colnames:
+                self.check_spread_functions(tablename,colname)
+
+        # check max function for different vnode 
+
+        for colname in colnames:
+            if colname.startswith("c"):
+                self.check_spread_distribute_diff_vnode(colname)
+            else:
+                # self.check_spread_distribute_diff_vnode(colname) # bug for tag 
+                pass
+
+        
+    def distribute_agg_query(self):
+        # basic filter
+        tdSql.query("select spread(c1) from stb1 where c1 is null")
+        tdSql.checkRows(0)
+
+        tdSql.query("select spread(c1) from stb1 where t1=1")
+        tdSql.checkData(0,0,8.000000000)
+
+        tdSql.query("select spread(c1+c2) from stb1 where c1 =1 ")
+        tdSql.checkData(0,0,0.000000000)
+
+        tdSql.query("select spread(c1) from stb1 where tbname=\"ct2\"")
+        tdSql.checkData(0,0,8.000000000)
+
+        tdSql.query("select spread(c1) from stb1 partition by tbname")
+        tdSql.checkRows(20)
+
+        tdSql.query("select spread(c1) from stb1 where t1> 4  partition by tbname")
+        tdSql.checkRows(15)
+
+        # union all 
+        tdSql.query("select spread(c1) from stb1 union all select max(c1)-min(c1) from stb1 ")
+        tdSql.checkRows(2)
+        tdSql.checkData(0,0,28.000000000)
+
+        # join 
+
+        tdSql.execute(" create database if not exists db ")
+        tdSql.execute(" use db ")
+        tdSql.execute(" create stable st (ts timestamp , c1 int ,c2 float) tags(t1 int) ")
+        tdSql.execute(" create table tb1 using st tags(1) ")
+        tdSql.execute(" create table tb2 using st tags(2) ")
+
+        
+        for i in range(10):
+            ts = i*10 + self.ts
+            tdSql.execute(f" insert into tb1 values({ts},{i},{i}.0)")
+            tdSql.execute(f" insert into tb2 values({ts},{i},{i}.0)")
+
+        tdSql.query("select spread(tb1.c1), spread(tb2.c2) from tb1, tb2 where tb1.ts=tb2.ts")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,9.000000000)
+        tdSql.checkData(0,0,9.00000)
+
+        # group by 
+        tdSql.execute(" use testdb ")
+        tdSql.query(" select max(c1),c1  from stb1 group by t1 ")
+        tdSql.checkRows(20)
+        tdSql.query(" select max(c1),c1  from stb1 group by c1 ")
+        tdSql.checkRows(30)
+        tdSql.query(" select max(c1),c2  from stb1 group by c2 ")
+        tdSql.checkRows(31)
+
+        # partition by tbname or partition by tag
+        tdSql.query("select spread(c1) from stb1 partition by tbname")
+        query_data = tdSql.queryResult
+
+        # nest query for support max
+        tdSql.query("select spread(c2+2)+1 from (select max(c1) c2  from stb1)")
+        tdSql.checkData(0,0,1.000000000)
+        tdSql.query("select spread(c1+2)+1  as c2 from (select ts ,c1 ,c2  from stb1)")
+        tdSql.checkData(0,0,29.000000000)
+        tdSql.query("select spread(a+2)+1  as c2 from (select ts ,abs(c1) a ,c2  from stb1)")
+        tdSql.checkData(0,0,29.000000000)
+
+        # mixup with other functions
+        tdSql.query("select max(c1),count(c1),last(c2,c3),spread(c1) from stb1")
+        tdSql.checkData(0,0,28)
+        tdSql.checkData(0,1,184)
+        tdSql.checkData(0,2,-99999)
+        tdSql.checkData(0,3,-999)
+        tdSql.checkData(0,4,28.000000000)
+
+    def run(self):
+
+        self.prepare_datas_of_distribute()
+        self.check_distribute_datas()
+        self.check_spread_status()
+        self.distribute_agg_query()
+
+    
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/distribute_agg_sum.py

+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+import random ,os ,sys
+import platform
+
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143,
+    "maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.vnode_disbutes = None
+        self.ts = 1537146000000
+
+
+    def check_sum_functions(self, tbname , col_name):
+
+        sum_sql = f"select sum({col_name}) from {tbname};"
+
+        same_sql = f"select {col_name} from {tbname} where {col_name} is not null "
+   
+        tdSql.query(same_sql)
+        pre_data = np.array(tdSql.queryResult)[np.array(tdSql.queryResult) != None]
+        if (platform.system().lower() == 'windows' and pre_data.dtype == 'int32'):
+            pre_data = np.array(pre_data, dtype = 'int64')
+        pre_sum = np.sum(pre_data)
+
+        tdSql.query(sum_sql)
+        tdSql.checkData(0,0,pre_sum)
+
+    def prepare_datas_of_distribute(self):
+        
+        # prepate datas for  20 tables distributed at different vgroups
+        tdSql.execute("create database if not exists testdb keep 3650 duration 1000 vgroups 5")
+        tdSql.execute(" use testdb ")
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
+            '''
+        )
+
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(20):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+
+        for i in range(1,21):
+            if i ==1 or i == 4:
+                continue
+            else:
+                tbname = "ct"+f'{i}'
+                for j in range(9):
+                    tdSql.execute(
+                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+
+        tdLog.info(" prepare data for distributed_aggregate done! ")
+
+    def check_distribute_datas(self):
+        # get vgroup_ids of all
+        tdSql.query("show vgroups ")
+        vgroups = tdSql.queryResult
+
+        vnode_tables={}
+        
+        for vgroup_id in vgroups:
+            vnode_tables[vgroup_id[0]]=[]
+        
+
+        # check sub_table of per vnode ,make sure sub_table has been distributed
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            vnode_tables[table_name[6]].append(table_name[0]) 
+        self.vnode_disbutes = vnode_tables
+
+        count = 0
+        for k ,v in vnode_tables.items():
+            if len(v)>=2:
+                count+=1
+        if count < 2:
+            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")
+
+    def check_sum_distribute_diff_vnode(self,col_name):
+    
+        vgroup_ids = []
+        for k ,v in self.vnode_disbutes.items():
+            if len(v)>=2:
+                vgroup_ids.append(k)
+        
+        distribute_tbnames = []
+        
+        for vgroup_id in vgroup_ids:
+            vnode_tables = self.vnode_disbutes[vgroup_id]
+            distribute_tbnames.append(random.sample(vnode_tables,1)[0])
+        tbname_ins = ""
+        for tbname in distribute_tbnames:
+            tbname_ins += "'%s' ,"%tbname
+
+        tbname_filters = tbname_ins[:-1]
+        
+        sum_sql = f"select sum({col_name}) from stb1 where tbname in ({tbname_filters});"
+
+        same_sql = f"select {col_name}  from stb1 where tbname in ({tbname_filters}) and {col_name} is not null "
+
+        tdSql.query(same_sql)
+        pre_data = np.array(tdSql.queryResult)[np.array(tdSql.queryResult) != None]
+        if (platform.system().lower() == 'windows' and pre_data.dtype == 'int32'):
+            pre_data = np.array(pre_data, dtype = 'int64')
+        pre_sum = np.sum(pre_data)
+
+        tdSql.query(sum_sql)
+        tdSql.checkData(0,0,pre_sum)
+
+    def check_sum_status(self):
+        # check max function work status 
+        
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            tablenames.append(table_name[0])
+
+        tdSql.query("desc stb1")
+        col_names = tdSql.queryResult
+        
+        colnames = []
+        for col_name in col_names:
+            if col_name[1] in ["INT" ,"BIGINT" ,"SMALLINT" ,"TINYINT" , "FLOAT" ,"DOUBLE"]:
+                colnames.append(col_name[0])
+        
+        for tablename in tablenames:
+            for colname in colnames:
+                self.check_sum_functions(tablename,colname)
+
+        # check max function for different vnode 
+
+        for colname in colnames:
+            if colname.startswith("c"):
+                self.check_sum_distribute_diff_vnode(colname)
+            else:
+                # self.check_sum_distribute_diff_vnode(colname) # bug for tag 
+                pass
+
+        
+    def distribute_agg_query(self):
+        # basic filter
+        tdSql.query(" select sum(c1) from stb1 ")
+        tdSql.checkData(0,0,2592)
+
+        tdSql.query(" select sum(a) from (select sum(c1) a  from stb1 partition by tbname) ")
+        tdSql.checkData(0,0,2592)
+
+        tdSql.query(" select sum(c1) from stb1 where t1=1")
+        tdSql.checkData(0,0,54)
+
+        tdSql.query("select sum(c1+c2) from stb1 where c1 =1 ")
+        tdSql.checkData(0,0,22224.000000000)
+
+        tdSql.query("select sum(c1) from stb1 where tbname=\"ct2\"")
+        tdSql.checkData(0,0,54)
+
+        tdSql.query("select sum(c1) from stb1 partition by tbname")
+        tdSql.checkRows(20)
+
+        tdSql.query("select sum(c1) from stb1 where t1> 4  partition by tbname")
+        tdSql.checkRows(15)
+
+        # union all 
+        tdSql.query("select sum(c1) from stb1 union all select sum(c1) from stb1 ")
+        tdSql.checkRows(2)
+        tdSql.checkData(0,0,2592)
+
+        tdSql.query("select sum(a) from (select sum(c1) a from stb1 union all select sum(c1) a  from stb1)")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,5184)
+
+        # join 
+
+        tdSql.execute(" create database if not exists db ")
+        tdSql.execute(" use db ")
+        tdSql.execute(" create stable st (ts timestamp , c1 int ,c2 float) tags(t1 int) ")
+        tdSql.execute(" create table tb1 using st tags(1) ")
+        tdSql.execute(" create table tb2 using st tags(2) ")
+
+        
+        for i in range(10):
+            ts = i*10 + self.ts
+            tdSql.execute(f" insert into tb1 values({ts},{i},{i}.0)")
+            tdSql.execute(f" insert into tb2 values({ts},{i},{i}.0)")
+
+        tdSql.query("select sum(tb1.c1), sum(tb2.c2) from tb1, tb2 where tb1.ts=tb2.ts")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,45)
+        tdSql.checkData(0,1,45.000000000)
+
+        # group by 
+        tdSql.execute(" use testdb ")
+
+        # partition by tbname or partition by tag
+        tdSql.query("select sum(c1) from stb1 partition by tbname")
+        tdSql.checkRows(20)
+
+        # nest query for support max
+        tdSql.query("select abs(c2+2)+1 from (select sum(c1) c2  from stb1)")
+        tdSql.checkData(0,0,2595.000000000)
+        tdSql.query("select sum(c1+2)  as c2 from (select ts ,c1 ,c2  from stb1)")
+        tdSql.checkData(0,0,2960.000000000)
+        tdSql.query("select sum(a+2)  as c2 from (select ts ,abs(c1) a ,c2  from stb1)")
+        tdSql.checkData(0,0,2960.000000000)
+
+        # mixup with other functions
+        tdSql.query("select max(c1),count(c1),last(c2,c3),sum(c1+c2) from stb1")
+        tdSql.checkData(0,0,28)
+        tdSql.checkData(0,1,184)
+        tdSql.checkData(0,2,-99999)
+        tdSql.checkData(0,3,-999)
+        tdSql.checkData(0,4,28202310.000000000)
+
+    def run(self):
+
+        self.prepare_datas_of_distribute()
+        self.check_distribute_datas()
+        self.check_sum_status()
+        self.distribute_agg_query()
+
+    
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/max.py

@@ -5,198 +5,215 @@ import numpy as np
 
 
 class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143,
+    "maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }
     def init(self, conn, logSql):
         tdLog.debug("start to execute %s" % __file__)
         tdSql.init(conn.cursor())
 
         self.rowNum = 10
         self.ts = 1537146000000
-
-    def prepare_data(self):
-        
-        pass    
-    def run(self):
+        self.binary_str = 'taosdata'
+        self.nchar_str = '涛思数据'
+    def max_check_stb_and_tb_base(self):
         tdSql.prepare()
-
         intData = []        
         floatData = []
-
-        tdSql.execute('''create table stb(ts timestamp, col1 tinyint, col2 smallint, col3 int, col4 bigint, col5 float, col6 double, 
-                    col7 bool, col8 binary(20), col9 nchar(20), col11 tinyint unsigned, col12 smallint unsigned, col13 int unsigned, col14 bigint unsigned) tags(loc nchar(20))''')
+        tdSql.execute('''create table stb(ts timestamp, col1 tinyint, col2 smallint, col3 int, col4 bigint, col5 tinyint unsigned, col6 smallint unsigned, 
+                    col7 int unsigned, col8 bigint unsigned, col9 float, col10 double, col11 bool, col12 binary(20), col13 nchar(20)) tags(loc nchar(20))''')
         tdSql.execute("create table stb_1 using stb tags('beijing')")
-        tdSql.execute('''create table ntb(ts timestamp, col1 tinyint, col2 smallint, col3 int, col4 bigint, col5 float, col6 double, 
-                    col7 bool, col8 binary(20), col9 nchar(20), col11 tinyint unsigned, col12 smallint unsigned, col13 int unsigned, col14 bigint unsigned)''')
         for i in range(self.rowNum):
-            tdSql.execute("insert into ntb values(%d, %d, %d, %d, %d, %f, %f, %d, 'taosdata%d', '涛思数据%d', %d, %d, %d, %d)" 
-                        % (self.ts + i, i + 1, i + 1, i + 1, i + 1, i + 0.1, i + 0.1, i % 2, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1))
+            tdSql.execute(f"insert into stb_1 values(%d, %d, %d, %d, %d, %d, %d, %d, %d, %f, %f, %d, '{self.binary_str}%d', '{self.nchar_str}%d')"
+                          % (self.ts + i, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1, i + 0.1, i + 0.1, i % 2, i + 1, i + 1))
             intData.append(i + 1)            
             floatData.append(i + 0.1)
+        for i in ['ts','col11','col12','col13']:
+            for j in ['db.stb','stb','db.stb_1','stb_1']:
+                tdSql.error(f'select max({i} from {j} )')
+
+        for i in range(1,11):
+            for j in ['db.stb','stb','db.stb_1','stb_1']:
+                tdSql.query(f"select max(col{i}) from {j}")
+                if i<9:
+                    tdSql.checkData(0, 0, np.max(intData))
+                elif i>=9:
+                    tdSql.checkData(0, 0, np.max(floatData))
+        tdSql.query("select max(col1) from stb_1 where col2<=5")
+        tdSql.checkData(0,0,5)
+        tdSql.query("select max(col1) from stb where col2<=5")
+        tdSql.checkData(0,0,5)
+        tdSql.execute('drop database db')
+        
+    def max_check_ntb_base(self):
+        tdSql.prepare()
+        intData = []        
+        floatData = []
+        tdSql.execute('''create table ntb(ts timestamp, col1 tinyint, col2 smallint, col3 int, col4 bigint, col5 tinyint unsigned, col6 smallint unsigned, 
+                    col7 int unsigned, col8 bigint unsigned, col9 float, col10 double, col11 bool, col12 binary(20), col13 nchar(20))''')
         for i in range(self.rowNum):
-            tdSql.execute("insert into stb_1 values(%d, %d, %d, %d, %d, %f, %f, %d, 'taosdata%d', '涛思数据%d', %d, %d, %d, %d)" 
-                        % (self.ts + i, i + 1, i + 1, i + 1, i + 1, i + 0.1, i + 0.1, i % 2, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1))
+            tdSql.execute(f"insert into ntb values(%d, %d, %d, %d, %d, %d, %d, %d, %d, %f, %f, %d, '{self.binary_str}%d', '{self.nchar_str}%d')"
+                          % (self.ts + i, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1, i + 0.1, i + 0.1, i % 2, i + 1, i + 1))
             intData.append(i + 1)            
-            floatData.append(i + 0.1)                        
-
-        # max verifacation 
-        tdSql.error("select max(ts) from stb_1")
-        tdSql.error("select max(ts) from db.stb_1")
-        tdSql.error("select max(col7) from stb_1")
-        tdSql.error("select max(col7) from db.stb_1")
-        tdSql.error("select max(col8) from stb_1")
-        tdSql.error("select max(col8) from db.stb_1")
-        tdSql.error("select max(col9) from stb_1")
-        tdSql.error("select max(col9) from db.stb_1")
-
-        tdSql.query("select max(col1) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col1) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col2) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col2) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col3) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col3) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col4) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col4) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col11) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col11) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col12) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col12) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col13) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col13) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col14) from stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col14) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col5) from stb_1")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col5) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col6) from stb_1")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col6) from db.stb_1")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col1) from stb_1 where col2<=5")
+            floatData.append(i + 0.1)
+        for i in ['ts','col11','col12','col13']:
+            for j in ['db.ntb','ntb']:
+                tdSql.error(f'select max({i} from {j} )')
+        for i in range(1,11):
+            for j in ['db.ntb','ntb']:
+                tdSql.query(f"select max(col{i}) from {j}")
+                if i<9:
+                    tdSql.checkData(0, 0, np.max(intData))
+                elif i>=9:
+                    tdSql.checkData(0, 0, np.max(floatData))
+        tdSql.query("select max(col1) from ntb where col2<=5")
         tdSql.checkData(0,0,5)
+        tdSql.execute('drop database db')
+
+
+    def check_max_functions(self, tbname , col_name):
+
+        max_sql = f"select max({col_name}) from {tbname};"
+
+        same_sql = f"select {col_name} from {tbname} order by {col_name} desc limit 1"
+
+        tdSql.query(max_sql)
+        max_result = tdSql.queryResult 
+
+        tdSql.query(same_sql)
+        same_result = tdSql.queryResult
+
+        if max_result !=same_result:
+            tdLog.exit(" max function work not as expected, sql : %s "% max_sql)
+        else:
+            tdLog.info(" max function work as expected, sql : %s "% max_sql)
+
+
+    def support_distributed_aggregate(self):
+        
+        # prepate datas for  20 tables distributed at different vgroups
+        tdSql.execute("create database if not exists testdb keep 3650 duration 1000 vgroups 5")
+        tdSql.execute(" use testdb ")
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
+            '''
+        )
+
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(20):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+
+        for i in range(1,21):
+            if i ==1 or i == 4:
+                continue
+            else:
+                tbname = "ct"+f'{i}'
+                for j in range(9):
+                    tdSql.execute(
+                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+
+        tdLog.info(" prepare data for distributed_aggregate done! ")
+
+        # get vgroup_ids of all
+        tdSql.query("show vgroups ")
+        vgroups = tdSql.queryResult
+
+        vnode_tables={}
+        
+        for vgroup_id in vgroups:
+            vnode_tables[vgroup_id[0]]=[]
         
 
+        # check sub_table of per vnode ,make sure sub_table has been distributed
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            vnode_tables[table_name[6]].append(table_name[0]) 
+
+        count = 0
+        for k ,v in vnode_tables.items():
+            if len(v)>=2:
+                count+=1
+        if count < 2:
+            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")
+
+        # check max function work status 
+        
+        tdSql.query("show tables like 'ct%'")
+        table_names = tdSql.queryResult
+        tablenames = []
+        for table_name in table_names:
+            tablenames.append(table_name[0])
+
+        tdSql.query("desc stb1")
+        col_names = tdSql.queryResult
+        
+        colnames = []
+        for col_name in col_names:
+            if col_name[1] in ["INT" ,"BIGINT" ,"SMALLINT" ,"TINYINT" , "FLOAT" ,"DOUBLE"]:
+                colnames.append(col_name[0])
+        
+        for tablename in tablenames:
+            for colname in colnames:
+                self.check_max_functions(tablename,colname)
 
-        tdSql.error("select max(ts) from stb")
-        tdSql.error("select max(ts) from db.stb")
-        tdSql.error("select max(col7) from stb")
-        tdSql.error("select max(col7) from db.stb")
-        tdSql.error("select max(col8) from stb")
-        tdSql.error("select max(col8) from db.stb")
-        tdSql.error("select max(col9) from stb")
-        tdSql.error("select max(col9) from db.stb")
-
-        tdSql.query("select max(col1) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col1) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col2) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col2) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col3) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col3) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col4) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col4) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col11) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col11) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col12) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col12) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col13) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col13) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col14) from stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col14) from db.stb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col5) from stb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col5) from db.stb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col6) from stb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col6) from db.stb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col1) from stb where col2<=5")
-        tdSql.checkData(0,0,5)
+        # max function with basic filter 
+        print(vnode_tables)
 
 
 
-        tdSql.error("select max(ts) from ntb")
-        tdSql.error("select max(ts) from db.ntb")
-        tdSql.error("select max(col7) from ntb")
-        tdSql.error("select max(col7) from db.ntb")
-        tdSql.error("select max(col8) from ntb")
-        tdSql.error("select max(col8) from db.ntb")
-        tdSql.error("select max(col9) from ntb")
-        tdSql.error("select max(col9) from db.ntb")
-
-        tdSql.query("select max(col1) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col1) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col2) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col2) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col3) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col3) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col4) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col4) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col11) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col11) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col12) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col12) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col13) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col13) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col14) from ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col14) from db.ntb")
-        tdSql.checkData(0, 0, np.max(intData))
-        tdSql.query("select max(col5) from ntb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col5) from db.ntb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col6) from ntb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col6) from db.ntb")
-        tdSql.checkData(0, 0, np.max(floatData))
-        tdSql.query("select max(col1) from stb_1 where col2<=5")
-        tdSql.checkData(0,0,5)
+    def run(self):                 
+
+        # max verifacation 
+        self.max_check_stb_and_tb_base()
+        self.max_check_ntb_base()
+
+        self.support_distributed_aggregate()
+
+    
     def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)

tests/system-test/fulltest.sh

@@ -98,6 +98,12 @@ python3 ./test.py -f 2-query/stateduration.py
 python3 ./test.py -f 2-query/function_stateduration.py
 python3 ./test.py -f 2-query/statecount.py
 python3 ./test.py -f 2-query/tail.py
+python3 ./test.py -f 2-query/distribute_agg_count.py
+python3 ./test.py -f 2-query/distribute_agg_max.py
+python3 ./test.py -f 2-query/distribute_agg_min.py
+python3 ./test.py -f 2-query/distribute_agg_sum.py
+python3 ./test.py -f 2-query/distribute_agg_spread.py
+python3 ./test.py -f 2-query/distribute_agg_apercentile.py
 
 python3 ./test.py -f 6-cluster/5dnode1mnode.py 
 python3 ./test.py -f 6-cluster/5dnode2mnode.py