Merge branch 'main' into fix/liaohj

docs/zh/12-taos-sql/06-select.md

@@ -248,11 +248,11 @@ NULLS 语法用来指定 NULL 值在排序中输出的位置。NULLS LAST 是升
 
 LIMIT 控制输出条数，OFFSET 指定从第几条之后开始输出。LIMIT/OFFSET 对结果集的执行顺序在 ORDER BY 之后。LIMIT 5 OFFSET 2 可以简写为 LIMIT 2, 5，都输出第 3 行到第 7 行数据。
 
-在有 PARTITION BY 子句时，LIMIT 控制的是每个切分的分片中的输出，而不是总的结果集输出。
+在有 PARTITION BY/GROUP BY 子句时，LIMIT 控制的是每个切分的分片中的输出，而不是总的结果集输出。
 
 ## SLIMIT
 
-SLIMIT 和 PARTITION BY 子句一起使用，用来控制输出的分片的数量。SLIMIT 5 SOFFSET 2 可以简写为 SLIMIT 2, 5，都表示输出第 3 个到第 7 个分片。
+SLIMIT 和 PARTITION BY/GROUP BY 子句一起使用，用来控制输出的分片的数量。SLIMIT 5 SOFFSET 2 可以简写为 SLIMIT 2, 5，都表示输出第 3 个到第 7 个分片。
 
 需要注意，如果有 ORDER BY 子句，则输出只有一个分片。
 

include/util/taoserror.h

@@ -642,7 +642,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_PAR_INCORRECT_NUM_OF_COL      TAOS_DEF_ERROR_CODE(0, 0x2634)
 #define TSDB_CODE_PAR_INCORRECT_TIMESTAMP_VAL   TAOS_DEF_ERROR_CODE(0, 0x2635)
 #define TSDB_CODE_PAR_OFFSET_LESS_ZERO          TAOS_DEF_ERROR_CODE(0, 0x2637)
-#define TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_BY  TAOS_DEF_ERROR_CODE(0, 0x2638)
+#define TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_GROUP_BY  TAOS_DEF_ERROR_CODE(0, 0x2638)
 #define TSDB_CODE_PAR_INVALID_TOPIC_QUERY       TAOS_DEF_ERROR_CODE(0, 0x2639)
 #define TSDB_CODE_PAR_INVALID_DROP_STABLE       TAOS_DEF_ERROR_CODE(0, 0x263A)
 #define TSDB_CODE_PAR_INVALID_FILL_TIME_RANGE   TAOS_DEF_ERROR_CODE(0, 0x263B)

source/libs/executor/inc/executorimpl.h

@@ -750,7 +750,7 @@ void clearResultRowInitFlag(SqlFunctionCtx* pCtx, int32_t numOfOutput);
 
 SResultRow* doSetResultOutBufByKey(SDiskbasedBuf* pResultBuf, SResultRowInfo* pResultRowInfo, char* pData,
                                    int16_t bytes, bool masterscan, uint64_t groupId, SExecTaskInfo* pTaskInfo,
-                                   bool isIntervalQuery, SAggSupporter* pSup);
+                                   bool isIntervalQuery, SAggSupporter* pSup, bool keepGroup);
 // operator creater functions
 // clang-format off
 SOperatorInfo* createExchangeOperatorInfo(void* pTransporter, SExchangePhysiNode* pExNode, SExecTaskInfo* pTaskInfo);

source/libs/executor/src/executorimpl.c

@@ -195,9 +195,12 @@ SResultRow* getNewResultRow(SDiskbasedBuf* pResultBuf, int32_t* currentPageId, i
  */
 SResultRow* doSetResultOutBufByKey(SDiskbasedBuf* pResultBuf, SResultRowInfo* pResultRowInfo, char* pData,
                                    int16_t bytes, bool masterscan, uint64_t groupId, SExecTaskInfo* pTaskInfo,
-                                   bool isIntervalQuery, SAggSupporter* pSup) {
+                                   bool isIntervalQuery, SAggSupporter* pSup, bool keepGroup) {
   SET_RES_WINDOW_KEY(pSup->keyBuf, pData, bytes, groupId);
-
+  if (!keepGroup) {
+    *(uint64_t*)pSup->keyBuf = calcGroupId(pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes));
+  }
+  
   SResultRowPosition* p1 =
       (SResultRowPosition*)tSimpleHashGet(pSup->pResultRowHashTable, pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes));
 
@@ -1034,7 +1037,7 @@ void doSetTableGroupOutputBuf(SOperatorInfo* pOperator, int32_t numOfOutput, uin
   int32_t*        rowEntryInfoOffset = pOperator->exprSupp.rowEntryInfoOffset;
 
   SResultRow* pResultRow = doSetResultOutBufByKey(pAggInfo->aggSup.pResultBuf, pResultRowInfo, (char*)&groupId,
-                                                  sizeof(groupId), true, groupId, pTaskInfo, false, &pAggInfo->aggSup);
+                                                  sizeof(groupId), true, groupId, pTaskInfo, false, &pAggInfo->aggSup, true);
   /*
    * not assign result buffer yet, add new result buffer
    * all group belong to one result set, and each group result has different group id so set the id to be one

source/libs/executor/src/groupoperator.c

@@ -277,6 +277,7 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SSDataBlock* pBlock) {
   terrno = TSDB_CODE_SUCCESS;
 
   int32_t num = 0;
+  uint64_t groupId = 0;
   for (int32_t j = 0; j < pBlock->info.rows; ++j) {
     // Compare with the previous row of this column, and do not set the output buffer again if they are identical.
     if (!pInfo->isInit) {
@@ -473,6 +474,8 @@ SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SAggPhysiNode*
   initResultRowInfo(&pInfo->binfo.resultRowInfo);
   setOperatorInfo(pOperator, "GroupbyAggOperator", 0, true, OP_NOT_OPENED, pInfo, pTaskInfo);
 
+  pInfo->binfo.mergeResultBlock = pAggNode->mergeDataBlock;
+
   pOperator->fpSet = createOperatorFpSet(optrDummyOpenFn, hashGroupbyAggregate, NULL, destroyGroupOperatorInfo,
                                          optrDefaultBufFn, NULL);
   code = appendDownstream(pOperator, &downstream, 1);
@@ -917,7 +920,7 @@ int32_t setGroupResultOutputBuf(SOperatorInfo* pOperator, SOptrBasicInfo* binfo,
   SqlFunctionCtx* pCtx = pOperator->exprSupp.pCtx;
 
   SResultRow* pResultRow =
-      doSetResultOutBufByKey(pBuf, pResultRowInfo, (char*)pData, bytes, true, groupId, pTaskInfo, false, pAggSup);
+      doSetResultOutBufByKey(pBuf, pResultRowInfo, (char*)pData, bytes, true, groupId, pTaskInfo, false, pAggSup, false);
   assert(pResultRow != NULL);
 
   setResultRowInitCtx(pResultRow, pCtx, numOfCols, pOperator->exprSupp.rowEntryInfoOffset);

source/libs/executor/src/projectoperator.c

@@ -580,7 +580,7 @@ void setFunctionResultOutput(SOperatorInfo* pOperator, SOptrBasicInfo* pInfo, SA
   int64_t     tid = 0;
   int64_t     groupId = 0;
   SResultRow* pRow = doSetResultOutBufByKey(pSup->pResultBuf, pResultRowInfo, (char*)&tid, sizeof(tid), true, groupId,
-                                            pTaskInfo, false, pSup);
+                                            pTaskInfo, false, pSup, true);
 
   for (int32_t i = 0; i < numOfExprs; ++i) {
     struct SResultRowEntryInfo* pEntry = getResultEntryInfo(pRow, i, rowEntryInfoOffset);

source/libs/executor/src/timewindowoperator.c

@@ -78,7 +78,7 @@ static int32_t setTimeWindowOutputBuf(SResultRowInfo* pResultRowInfo, STimeWindo
                                       int32_t numOfOutput, int32_t* rowEntryInfoOffset, SAggSupporter* pAggSup,
                                       SExecTaskInfo* pTaskInfo) {
   SResultRow* pResultRow = doSetResultOutBufByKey(pAggSup->pResultBuf, pResultRowInfo, (char*)&win->skey, TSDB_KEYSIZE,
-                                                  masterscan, tableGroupId, pTaskInfo, true, pAggSup);
+                                                  masterscan, tableGroupId, pTaskInfo, true, pAggSup, true);
 
   if (pResultRow == NULL) {
     *pResult = NULL;

source/libs/parser/src/parTranslater.c

@@ -3372,8 +3372,8 @@ static int32_t checkLimit(STranslateContext* pCxt, SSelectStmt* pSelect) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_OFFSET_LESS_ZERO);
   }
 
-  if (NULL != pSelect->pSlimit && NULL == pSelect->pPartitionByList) {
+  if (NULL != pSelect->pSlimit && (NULL == pSelect->pPartitionByList && NULL == pSelect->pGroupByList)) {
-    return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_BY);
+    return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_GROUP_BY);
   }
 
   return TSDB_CODE_SUCCESS;

source/libs/parser/src/parUtil.c

@@ -103,8 +103,8 @@ static char* getSyntaxErrFormat(int32_t errCode) {
       return "Incorrect TIMESTAMP value: %s";
     case TSDB_CODE_PAR_OFFSET_LESS_ZERO:
       return "soffset/offset can not be less than 0";
-    case TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_BY:
+    case TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_GROUP_BY:
-      return "slimit/soffset only available for PARTITION BY query";
+      return "slimit/soffset only available for PARTITION/GROUP BY query";
     case TSDB_CODE_PAR_INVALID_TOPIC_QUERY:
       return "Invalid topic query";
     case TSDB_CODE_PAR_INVALID_DROP_STABLE:

source/util/src/terror.c

@@ -515,7 +515,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_PAR_ONLY_ONE_JSON_TAG,         "Only one tag if ther
 TAOS_DEFINE_ERROR(TSDB_CODE_PAR_INCORRECT_NUM_OF_COL,      "Query block has incorrect number of result columns")
 TAOS_DEFINE_ERROR(TSDB_CODE_PAR_INCORRECT_TIMESTAMP_VAL,   "Incorrect TIMESTAMP value")
 TAOS_DEFINE_ERROR(TSDB_CODE_PAR_OFFSET_LESS_ZERO,          "soffset/offset can not be less than 0")
-TAOS_DEFINE_ERROR(TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_BY,  "slimit/soffset only available for PARTITION BY query")
+TAOS_DEFINE_ERROR(TSDB_CODE_PAR_SLIMIT_LEAK_PARTITION_GROUP_BY,  "slimit/soffset only available for PARTITION/GROUP BY query")
 TAOS_DEFINE_ERROR(TSDB_CODE_PAR_INVALID_TOPIC_QUERY,        "Invalid topic query")
 TAOS_DEFINE_ERROR(TSDB_CODE_PAR_INVALID_DROP_STABLE,        "Cannot drop super table in batch")
 TAOS_DEFINE_ERROR(TSDB_CODE_PAR_INVALID_FILL_TIME_RANGE,    "Start(end) time of query range required or time range too large")

tests/parallel_test/cases.task

@@ -168,6 +168,7 @@
 ,,y,script,./test.sh -f tsim/parser/union.sim
 ,,y,script,./test.sh -f tsim/parser/union_sysinfo.sim
 ,,y,script,./test.sh -f tsim/parser/where.sim
+,,y,script,./test.sh -f tsim/parser/slimit_limit.sim
 ,,y,script,./test.sh -f tsim/query/tagLikeFilter.sim
 ,,y,script,./test.sh -f tsim/query/charScalarFunction.sim
 ,,y,script,./test.sh -f tsim/query/explain.sim

tests/script/tsim/parser/groupby.sim

@@ -415,12 +415,12 @@ if $data03 != 0 then
   return -1
 endi
 
-sql select count(*),first(ts),last(ts),min(c3) from group_tb1 group by c4 limit 1;
+sql select count(*),first(ts),last(ts),min(c3) from group_tb1 group by c4 slimit 1;
 if $rows != 1 then
   return -1
 endi
 
-sql select count(*),first(ts),last(ts),min(c3) from group_tb1 group by c4 limit 20 offset 9990;
+sql select count(*),first(ts),last(ts),min(c3) from group_tb1 group by c4 slimit 20 soffset 9990;
 if $rows != 10 then
   return -1
 endi

tests/script/tsim/parser/slimit_limit.sim

@@ -0,0 +1,113 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+sql drop database if exists db1;
+sql create database db1 vgroups 1;
+sql use db1;
+sql create stable sta (ts timestamp, f1 int, f2 binary(200)) tags(t1 int, t2 int, t3 int);
+sql create table tba1 using sta tags(1, 1, 1);
+sql create table tba2 using sta tags(2, 2, 2);
+sql create table tba3 using sta tags(3, 3, 3);
+sql create table tba4 using sta tags(4, 4, 4);
+sql create table tba5 using sta tags(5, 5, 5);
+sql create table tba6 using sta tags(6, 6, 6);
+sql create table tba7 using sta tags(7, 7, 7);
+sql create table tba8 using sta tags(8, 8, 8);
+sql create index index1 on sta (t2);
+sql insert into tba1 values ('2022-04-26 15:15:01', 1, "a");
+sql insert into tba1 values ('2022-04-26 15:15:02', 11, "a");
+sql insert into tba2 values ('2022-04-26 15:15:01', 2, "a");
+sql insert into tba2 values ('2022-04-26 15:15:02', 22, "a");
+sql insert into tba3 values ('2022-04-26 15:15:01', 3, "a");
+sql insert into tba4 values ('2022-04-26 15:15:01', 4, "a");
+sql insert into tba5 values ('2022-04-26 15:15:01', 5, "a");
+sql insert into tba6 values ('2022-04-26 15:15:01', 6, "a");
+sql insert into tba7 values ('2022-04-26 15:15:01', 7, "a");
+sql insert into tba8 values ('2022-04-26 15:15:01', 8, "a");
+
+sql select t1,count(*) from sta group by t1 limit 1;
+if $rows != 8 then
+  return -1
+endi
+sql select t1,count(*) from sta group by t1 slimit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select f1,count(*) from sta group by f1 limit 1;
+if $rows != 10 then
+  return -1
+endi
+sql select f1,count(*) from sta group by f1 slimit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by t1, f1 limit 1;
+if $rows != 10 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by t1, f1 slimit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by f1, t1 limit 1;
+if $rows != 10 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by f1, t1 slimit 1;
+if $rows != 1 then
+  return -1
+endi
+
+sql select t1,count(*) from sta group by t1 order by t1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select t1,count(*) from sta group by t1 order by t1 slimit 1;
+if $rows != 8 then
+  return -1
+endi
+sql select f1,count(*) from sta group by f1 order by f1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select f1,count(*) from sta group by f1 order by f1 slimit 1;
+if $rows != 10 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by t1, f1 order by t1,f1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by t1, f1 order by t1,f1 slimit 1;
+if $rows != 10 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by f1, t1 order by f1,t1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by f1, t1 order by f1,t1 slimit 1;
+if $rows != 10 then
+  return -1
+endi
+
+sql select t1,count(*) from sta group by t1 slimit 1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select f1,count(*) from sta group by f1 slimit 1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by t1, f1 slimit 1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+sql select t1,f1,count(*) from sta group by f1, t1 slimit 1 limit 1;
+if $rows != 1 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT

tests/system-test/0-others/tag_index_advance.py

@@ -11,45 +11,42 @@
 
 # -*- coding: utf-8 -*-
 
-from ssl import ALERT_DESCRIPTION_CERTIFICATE_UNOBTAINABLE
+import os
-import taos
+import random
+import socket
+import string
+import subprocess
 import sys
 import time
-import os
+from ssl import ALERT_DESCRIPTION_CERTIFICATE_UNOBTAINABLE
-import socket
-import subprocess
-import random
-import string
-import random
 
-
+import taos
-from util.log import *
-from util.sql import *
 from util.cases import *
 from util.common import *
+from util.dnodes import *
+from util.dnodes import TDDnode, TDDnodes
+from util.log import *
+from util.sql import *
 from util.sqlset import *
 
-from util.dnodes import *
-from util.dnodes import TDDnodes
-from util.dnodes import TDDnode
 
 #
 # --------------    util   --------------------------
 #
 def pathSize(path):
-    
+
     total_size = 0
     for dirpath, dirnames, filenames in os.walk(path):
         for i in filenames:
-            #use join to concatenate all the components of path
+            # use join to concatenate all the components of path
             f = os.path.join(dirpath, i)
-            #use getsize to generate size in bytes and add it to the total size
+            # use getsize to generate size in bytes and add it to the total size
             total_size += os.path.getsize(f)
-            #print(dirpath)
+            # print(dirpath)
 
-    print(" %s  %.02f MB"%(path, total_size/1024/1024))
+    print(" %s  %.02f MB" % (path, total_size/1024/1024))
     return total_size
-    
+
     '''
     total = 0
     with os.scandir(path) as it:
@@ -67,24 +64,27 @@ def pathSize(path):
 # ---------------    cluster  ------------------------
 #
 
+
 class MyDnodes(TDDnodes):
-    def __init__(self ,dnodes_lists):
+    def __init__(self, dnodes_lists):
-        super(MyDnodes,self).__init__()
+        super(MyDnodes, self).__init__()
         self.dnodes = dnodes_lists  # dnode must be TDDnode instance
         self.simDeployed = False
 
+
 class TagCluster:
     noConn = True
+
     def init(self, conn, logSql, replicaVar=1):
         tdLog.debug(f"start to excute {__file__}")
         self.TDDnodes = None
         self.depoly_cluster(5)
         self.master_dnode = self.TDDnodes.dnodes[0]
-        self.host=self.master_dnode.cfgDict["fqdn"]
+        self.host = self.master_dnode.cfgDict["fqdn"]
-        conn1 = taos.connect(self.master_dnode.cfgDict["fqdn"] , config=self.master_dnode.cfgDir)
+        conn1 = taos.connect(
+            self.master_dnode.cfgDict["fqdn"], config=self.master_dnode.cfgDir)
         tdSql.init(conn1.cursor())
 
-
     def getBuildPath(self):
         selfPath = os.path.dirname(os.path.realpath(__file__))
 
@@ -101,8 +101,7 @@ class TagCluster:
                     break
         return buildPath
 
-
+    def depoly_cluster(self, dnodes_nums):
-    def depoly_cluster(self ,dnodes_nums):
 
         testCluster = False
         valgrind = 0
@@ -126,7 +125,7 @@ class TagCluster:
         self.TDDnodes.setAsan(tdDnodes.getAsan())
         self.TDDnodes.stopAll()
         for dnode in self.TDDnodes.dnodes:
-            self.TDDnodes.deploy(dnode.index,{})
+            self.TDDnodes.deploy(dnode.index, {})
 
         for dnode in self.TDDnodes.dnodes:
             self.TDDnodes.starttaosd(dnode.index)
@@ -136,7 +135,8 @@ class TagCluster:
         sql = ""
         for dnode in self.TDDnodes.dnodes[1:]:
             # print(dnode.cfgDict)
-            dnode_id = dnode.cfgDict["fqdn"] +  ":" +dnode.cfgDict["serverPort"]
+            dnode_id = dnode.cfgDict["fqdn"] + \
+                ":" + dnode.cfgDict["serverPort"]
             if dnode_first_host == "":
                 dnode_first_host = dnode.cfgDict["firstEp"].split(":")[0]
                 dnode_first_port = dnode.cfgDict["firstEp"].split(":")[-1]
@@ -145,18 +145,17 @@ class TagCluster:
         cmd = f"{self.getBuildPath()}/build/bin/taos -h {dnode_first_host} -P {dnode_first_port} -s "
         cmd += f'"{sql}"'
         print(cmd)
-        os.system(cmd) 
+        os.system(cmd)
 
         time.sleep(2)
         tdLog.info(" create cluster done! ")
 
-
     def getConnection(self, dnode):
         host = dnode.cfgDict["fqdn"]
         port = dnode.cfgDict["serverPort"]
         config_dir = dnode.cfgDir
         return taos.connect(host=host, port=int(port), config=config_dir)
-        
+
     def run(self):
         tdLog.info(" create cluster ok.")
 
@@ -168,22 +167,22 @@ class TagCluster:
 class PerfDB:
     def __init__(self):
         self.sqls = []
-        self.spends= []
+        self.spends = []
-    
+
     # execute
     def execute(self, sql):
-        print(f"  perfdb execute {sql}")   
+        print(f"  perfdb execute {sql}")
         stime = time.time()
         ret = tdSql.execute(sql, 1)
         spend = time.time() - stime
-        
+
         self.sqls.append(sql)
         self.spends.append(spend)
         return ret
 
     # query
     def query(self, sql):
-        print(f"  perfdb query {sql}")   
+        print(f"  perfdb query {sql}")
         start = time.time()
         ret = tdSql.query(sql, None, 1)
         spend = time.time() - start
@@ -203,9 +202,9 @@ class TDTestCase:
         self.tagCluster = TagCluster()
         self.tagCluster.init(conn, logSql, replicaVar)
         self.lenBinary = 64
-        self.lenNchar  = 32
+        self.lenNchar = 32
-        
+
-        # column 
+        # column
         self.column_dict = {
             'ts': 'timestamp',
             'col1': 'tinyint',
@@ -252,14 +251,14 @@ class TDTestCase:
 
     # query
     def query(self, sql):
-        return self.dbs[self.cur].query(sql)   
+        return self.dbs[self.cur].query(sql)
-    
+
-    def set_stb_sql(self,stbname,column_dict,tag_dict):
+    def set_stb_sql(self, stbname, column_dict, tag_dict):
         column_sql = ''
         tag_sql = ''
-        for k,v in column_dict.items():
+        for k, v in column_dict.items():
             column_sql += f"{k} {v}, "
-        for k,v in tag_dict.items():
+        for k, v in tag_dict.items():
             tag_sql += f"{k} {v}, "
         create_stb_sql = f'create stable {stbname} ({column_sql[:-2]}) tags ({tag_sql[:-2]})'
         return create_stb_sql
@@ -268,37 +267,41 @@ class TDTestCase:
     def create_database(self, dbname, vgroups, replica):
         sql = f'create database {dbname} vgroups {vgroups} replica {replica}'
         tdSql.execute(sql)
-        #tdSql.execute(sql)
+        # tdSql.execute(sql)
         tdSql.execute(f'use {dbname}')
-    
+
     # create stable and child tables
     def create_table(self, stbname, tbname, count):
         # create stable
-        create_table_sql = self.set_stb_sql(stbname, self.column_dict, self.tag_dict)
+        create_table_sql = self.set_stb_sql(
+            stbname, self.column_dict, self.tag_dict)
         tdSql.execute(create_table_sql)
 
         # create child table
         tdLog.info(f" start create {count} child tables.")
-        for i in range(count):
+        batchSql = ""
-            ti = i % 128
+        batchSize = 5000
-            binTxt = self.random_string(self.lenBinary)
+        for i in range(int(count/batchSize)):
-            tags = f'{ti},{ti},{i},{i},{ti},{ti},{i},{i},{i}.000{i},{i}.000{i},true,"{binTxt}","nch{i}",now'
+            batchSql = "create table"
-            sql  = f'create table {tbname}{i} using {stbname} tags({tags})'
+            for j in range(batchSize):
-            tdSql.execute(sql)
+                ti = (i * batchSize + j) % 128
-            if i > 0 and i % 1000 == 0:
+                binTxt = self.random_string(self.lenBinary)
-                tdLog.info(f"  child table count = {i}")
+                idx = i * batchSize + j
+                tags = f'{ti},{ti},{idx},{idx},{ti},{ti},{idx},{idx},{idx}.000{idx},{idx}.000{idx},true,"{binTxt}","nch{idx}",now'
+                sql = f'{tbname}{idx} using {stbname} tags({tags})'
+                batchSql = batchSql + " " + sql
+            tdSql.execute(batchSql)
+            tdLog.info(f"  child table count = {i * batchSize}")
 
-        tdLog.info(f" end create {count} child tables.")
-    
-    
     # create stable and child tables
+
     def create_tagidx(self, stbname):
         cnt = -1
         for key in self.tag_dict.keys():
             # first tag have default index, so skip
             if cnt == -1:
                 cnt = 0
-                continue; 
+                continue
             sql = f'create index idx_{key} on {stbname} ({key})'
             tdLog.info(f"  sql={sql}")
             tdSql.execute(sql)
@@ -309,11 +312,11 @@ class TDTestCase:
     def insert_data(self, tbname):
         # d1 insert 3 rows
         for i in range(3):
-            sql = f'insert into {tbname}1(ts,col1) values(now+{i}s,{i});' 
+            sql = f'insert into {tbname}1(ts,col1) values(now+{i}s,{i});'
             tdSql.execute(sql)
         # d20 insert 4
         for i in range(4):
-            sql = f'insert into {tbname}20(ts,col1) values(now+{i}s,{i});' 
+            sql = f'insert into {tbname}20(ts,col1) values(now+{i}s,{i});'
             tdSql.execute(sql)
 
     # check show indexs
@@ -376,17 +379,17 @@ class TDTestCase:
         self.query(sql)
         tdSql.checkRows(4)
 
-
     # drop child table
+
     def drop_tables(self, tbname, count):
         # table d1 and d20 have verify data , so can not drop
         start = random.randint(21, count/2)
-        end   = random.randint(count/2 + 1, count - 1)
+        end = random.randint(count/2 + 1, count - 1)
         for i in range(start, end):
             sql = f'drop table {tbname}{i}'
             tdSql.execute(sql)
-        cnt = end - start + 1    
+        cnt = end - start + 1
-        tdLog.info(f' drop table from {start} to {end} count={cnt}')     
+        tdLog.info(f' drop table from {start} to {end} count={cnt}')
 
     # drop tag index
     def drop_tagidx(self, dbname, stbname):
@@ -396,11 +399,11 @@ class TDTestCase:
             # first tag have default index, so skip
             if cnt == -1:
                 cnt = 0
-                continue; 
+                continue
             sql = f'drop index idx_{key}'
             tdSql.execute(sql)
             cnt += 1
-        
+
         # check idx result is 0
         sql = f'select index_name,column_name from information_schema.ins_indexes where db_name="{dbname}"'
         tdSql.query(sql)
@@ -408,17 +411,19 @@ class TDTestCase:
         tdLog.info(f' drop {cnt} tag indexs ok.')
 
     # show performance
-    def show_performance(self, count) :
+    def show_performance(self, count):
-        db = self.dbs[0] 
+        db = self.dbs[0]
         db1 = self.dbs[1]
         cnt = len(db.sqls)
         cnt1 = len(db1.sqls)
-        if  cnt != len(db1.sqls):
+        if cnt != len(db1.sqls):
-            tdLog.info(f"  datebase sql count not equal. cnt={cnt}  cnt1={cnt1}\n")
+            tdLog.info(
+                f"  datebase sql count not equal. cnt={cnt}  cnt1={cnt1}\n")
             return False
 
         tdLog.info(f" database sql cnt ={cnt}")
-        print(f"  ----------------- performance (child tables = {count})--------------------")
+        print(
+            f"  ----------------- performance (child tables = {count})--------------------")
         print("   No  time(index) time(no-index) diff(col3-col2) rate(col2/col3)  sql")
         for i in range(cnt):
             key = db.sqls[i]
@@ -427,12 +432,13 @@ class TDTestCase:
             value1 = db1.spends[i]
             diff = value1 - value
             rate = value/value1*100
-            print("   %d   %.3fs      %.3fs          %.3fs         %d%%          %s"%(i+1, value, value1, diff, rate, key))
+            print("   %d   %.3fs      %.3fs          %.3fs         %d%%          %s" % (
+                i+1, value, value1, diff, rate, key))
         print("  --------------------- end ------------------------")
-        return True 
+        return True
-    
+
     def show_diskspace(self):
-        #calc
+        # calc
         selfPath = os.path.dirname(os.path.realpath(__file__))
         projPath = ""
         if ("community" in selfPath):
@@ -451,43 +457,41 @@ class TDTestCase:
         idx_size = vnode2_size + vnode3_size
         noidx_size = vnode4_size + vnode5_size
 
-        print("  index    = %.02f M"%(idx_size/1024/1024))
+        print("  index    = %.02f M" % (idx_size/1024/1024))
-        print("  no-index = %.02f M"%(noidx_size/1024/1024))
+        print("  no-index = %.02f M" % (noidx_size/1024/1024))
-        print("  index/no-index = %.2f multiple"%(idx_size/noidx_size))
+        print("  index/no-index = %.2f multiple" % (idx_size/noidx_size))
 
         print("  -------------------- end ------------------------")
 
-
-
-
     # main
+
     def testdb(self, dbname, stable, tbname, count, createidx):
         # cur
         if createidx:
             self.cur = 0
-        else :
+        else:
             self.cur = 1
 
-        # do 
+        # do
         self.create_database(dbname, 2, 1)
         self.create_table(stable, tbname, count)
-        if(createidx):
+        if (createidx):
-           self.create_tagidx(stable)
+            self.create_tagidx(stable)
         self.insert_data(tbname)
-        if(createidx):
+        if (createidx):
-           self.show_tagidx(dbname,stable)
+            self.show_tagidx(dbname, stable)
         self.query_tagidx(stable)
-        #self.drop_tables(tbname, count)
+        # self.drop_tables(tbname, count)
-        #if(createidx):
+        # if(createidx):
         #   self.drop_tagidx(dbname, stable)
         # query after delete , expect no crash
-        #self.query_tagidx(stable)
+        # self.query_tagidx(stable)
         tdSql.execute(f'flush database {dbname}')
 
     # run
     def run(self):
         self.tagCluster.run()
-        
+
         # var
         dbname = "tagindex"
         dbname1 = dbname + "1"
@@ -511,10 +515,10 @@ class TDTestCase:
 
         self.show_diskspace()
 
-
     def stop(self):
         self.tagCluster.stop()
         tdLog.success("%s successfully executed" % __file__)
 
+
 tdCases.addWindows(__file__, TDTestCase())
-tdCases.addLinux(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

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

@@ -171,6 +171,7 @@ class TDTestCase:
             if any(parm in condition.lower().strip() for parm in condition_exception):
 
                 print(f"case in {line}: ", end='')
+                print(f"condition : {condition}: ", end='')
                 return tdSql.error(self.sample_query_form(
                     sel=sel, func=func, col=col, m_comm=m_comm, k=k, r_comm=r_comm, alias=alias, fr=fr,
                     table_expr=table_expr, condition=condition
@@ -391,16 +392,6 @@ class TDTestCase:
         self.checksample(**case25)
         case26 = {"k": 1000}
         self.checksample(**case26)
-        case27 = {
-            "table_expr": f"{DBNAME}.stb1",
-            "condition": "group by tbname slimit 1 "
-        }
-        self.checksample(**case27)         # with slimit
-        case28 = {
-            "table_expr": f"{DBNAME}.stb1",
-            "condition": "group by tbname slimit 1 soffset 1"
-        }
-        self.checksample(**case28)         # with soffset
 
         pass