add case for agg max functions

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 days 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)
+
+        tdSql.query("select max(c1) from stb1 where t1> 4  partition by tbname")
+        tdSql.checkRows(15)
+
+
+    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())