Merge branch '3.0' of https://github.com/taosdata/TDengine into 3.0

docs/en/12-taos-sql/14-stream.md

@@ -41,16 +41,28 @@ window_clause: {
     SESSION(ts_col, tol_val)
   | STATE_WINDOW(col)
   | INTERVAL(interval_val [, interval_offset]) [SLIDING (sliding_val)]
+  | EVENT_WINDOW START WITH start_trigger_condition END WITH end_trigger_condition
+  | COUNT_WINDOW(count_val[, sliding_val])
 }
 ```
 
 `SESSION` indicates a session window, and `tol_val` indicates the maximum range of the time interval. If the time interval between two continuous rows are within the time interval specified by `tol_val` they belong to the same session window; otherwise a new session window is started automatically.
 
+`EVENT_WINDOW` is determined according to the window start condition and the window close condition. The window is started when `start_trigger_condition` is evaluated to true, the window is closed when `end_trigger_condition` is evaluated to true. `start_trigger_condition` and `end_trigger_condition` can be any conditional expressions supported by TDengine and can include multiple columns.
+
+`COUNT_WINDOW` is a counting window that is divided by a fixed number of data rows.`count_val`: A constant, which is a positive integer and must be greater than or equal to 2. The maximum value is 2147483648. `count_val` represents the maximum number of data rows contained in each `COUNT_WINDOW`. When the total number of data rows cannot be divided by `count_val`, the number of rows in the last window will be less than `count_val`. `sliding_val`: is a constant that represents the number of window slides, similar to `SLIDING` in `INTERVAL`.
+
 For example, the following SQL statement creates a stream and automatically creates a supertable named `avg_vol`. The stream has a 1 minute time window that slides forward in 30 second intervals to calculate the average voltage of the meters supertable.
 
 ```sql
 CREATE STREAM avg_vol_s INTO avg_vol AS
 SELECT _wstart, count(*), avg(voltage) FROM meters PARTITION BY tbname INTERVAL(1m) SLIDING(30s);
+
+CREATE STREAM streams0 INTO streamt0 AS
+SELECT _wstart, count(*), avg(voltage) from meters PARTITION BY tbname EVENT_WINDOW START WITH voltage < 0 END WITH voltage > 9;
+
+CREATE STREAM streams1 IGNORE EXPIRED 1 WATERMARK 100s INTO streamt1 AS
+SELECT _wstart, count(*), avg(voltage) from meters PARTITION BY tbname COUNT_WINDOW(10);
 ```
 
 ## Partitions of Stream

docs/zh/12-taos-sql/14-stream.md

@@ -49,10 +49,14 @@ window_clause: {
     SESSION(ts_col, tol_val)
   | STATE_WINDOW(col)
   | INTERVAL(interval_val [, interval_offset]) [SLIDING (sliding_val)]
+  | EVENT_WINDOW START WITH start_trigger_condition END WITH end_trigger_condition
+  | COUNT_WINDOW(count_val[, sliding_val])
 }
 ```
 
 其中，SESSION 是会话窗口，tol_val 是时间间隔的最大范围。在 tol_val 时间间隔范围内的数据都属于同一个窗口，如果连续的两条数据的时间超过 tol_val，则自动开启下一个窗口。
+EVENT_WINDOW 是事件窗口，根据开始条件和结束条件来划定窗口。当 start_trigger_condition 满足时则窗口开始，直到 end_trigger_condition 满足时窗口关闭。 start_trigger_condition 和 end_trigger_condition 可以是任意 TDengine 支持的条件表达式，且可以包含不同的列。
+COUNT_WINDOW 是计数窗口,按固定的数据行数来划分窗口。 count_val 是常量，是正整数，必须大于等于2，小于2147483648。 count_val 表示每个 COUNT_WINDOW 包含的最大数据行数，总数据行数不能整除 count_val 时，最后一个窗口的行数会小于 count_val 。 sliding_val 是常量，表示窗口滑动的数量，类似于 INTERVAL 的 SLIDING 。
 
 窗口的定义与时序数据特色查询中的定义完全相同，详见 [TDengine 特色查询](../distinguished)
 
@@ -61,6 +65,12 @@ window_clause: {
 ```sql
 CREATE STREAM avg_vol_s INTO avg_vol AS
 SELECT _wstart, count(*), avg(voltage) FROM meters PARTITION BY tbname INTERVAL(1m) SLIDING(30s);
+
+CREATE STREAM streams0 INTO streamt0 AS
+SELECT _wstart, count(*), avg(voltage) from meters PARTITION BY tbname EVENT_WINDOW START WITH voltage < 0 END WITH voltage > 9;
+
+CREATE STREAM streams1 IGNORE EXPIRED 1 WATERMARK 100s INTO streamt1 AS
+SELECT _wstart, count(*), avg(voltage) from meters PARTITION BY tbname COUNT_WINDOW(10);
 ```
 
 ## 流式计算的 partition

source/client/inc/clientInt.h

@@ -354,6 +354,7 @@ SRequestObj* acquireRequest(int64_t rid);
 int32_t      releaseRequest(int64_t rid);
 int32_t      removeRequest(int64_t rid);
 void         doDestroyRequest(void* p);
+int64_t      removeFromMostPrevReq(SRequestObj* pRequest);
 
 char* getDbOfConnection(STscObj* pObj);
 void  setConnectionDB(STscObj* pTscObj, const char* db);

source/client/src/clientEnv.c

@@ -385,6 +385,33 @@ int32_t releaseRequest(int64_t rid) { return taosReleaseRef(clientReqRefPool, ri
 
 int32_t removeRequest(int64_t rid) { return taosRemoveRef(clientReqRefPool, rid); }
 
+/// return the most previous req ref id
+int64_t removeFromMostPrevReq(SRequestObj* pRequest) {
+  int64_t mostPrevReqRefId = pRequest->self;
+  SRequestObj* pTmp = pRequest;
+  while (pTmp->relation.prevRefId) {
+    pTmp = acquireRequest(pTmp->relation.prevRefId);
+    if (pTmp) {
+      mostPrevReqRefId = pTmp->self;
+      releaseRequest(mostPrevReqRefId);
+    } else {
+      break;
+    }
+  }
+  removeRequest(mostPrevReqRefId);
+  return mostPrevReqRefId;
+}
+
+void destroyNextReq(int64_t nextRefId) {
+  if (nextRefId) {
+    SRequestObj* pObj = acquireRequest(nextRefId);
+    if (pObj) {
+      releaseRequest(nextRefId);
+      releaseRequest(nextRefId);
+    }
+  }
+}
+
 void destroySubRequests(SRequestObj *pRequest) {
   int32_t      reqIdx = -1;
   SRequestObj *pReqList[16] = {NULL};
@@ -435,7 +462,7 @@ void doDestroyRequest(void *p) {
   uint64_t reqId = pRequest->requestId;
   tscTrace("begin to destroy request %" PRIx64 " p:%p", reqId, pRequest);
 
-  destroySubRequests(pRequest);
+  int64_t nextReqRefId = pRequest->relation.nextRefId;
 
   taosHashRemove(pRequest->pTscObj->pRequests, &pRequest->self, sizeof(pRequest->self));
 
@@ -471,6 +498,7 @@ void doDestroyRequest(void *p) {
   taosMemoryFreeClear(pRequest->sqlstr);
   taosMemoryFree(pRequest);
   tscTrace("end to destroy request %" PRIx64 " p:%p", reqId, pRequest);
+  destroyNextReq(nextReqRefId);
 }
 
 void destroyRequest(SRequestObj *pRequest) {
@@ -479,7 +507,7 @@ void destroyRequest(SRequestObj *pRequest) {
   }
 
   taos_stop_query(pRequest);
-  removeRequest(pRequest->self);
+  removeFromMostPrevReq(pRequest);
 }
 
 void taosStopQueryImpl(SRequestObj *pRequest) {

source/client/src/clientMain.c

@@ -1254,54 +1254,34 @@ void doAsyncQuery(SRequestObj *pRequest, bool updateMetaForce) {
 }
 
 void restartAsyncQuery(SRequestObj *pRequest, int32_t code) {
-  int32_t      reqIdx = 0;
+  tscInfo("restart request: %s p: %p", pRequest->sqlstr, pRequest);
-  SRequestObj *pReqList[16] = {NULL};
+  SRequestObj* pUserReq = pRequest;
-  SRequestObj *pUserReq = NULL;
+  acquireRequest(pRequest->self);
-  pReqList[0] = pRequest;
+  while (pUserReq) {
-  uint64_t     tmpRefId = 0;
+    if (pUserReq->self == pUserReq->relation.userRefId || pUserReq->relation.userRefId == 0) {
-  SRequestObj *pTmp = pRequest;
-  while (pTmp->relation.prevRefId) {
-    tmpRefId = pTmp->relation.prevRefId;
-    pTmp = acquireRequest(tmpRefId);
-    if (pTmp) {
-      pReqList[++reqIdx] = pTmp;
-      releaseRequest(tmpRefId);
-    } else {
-      tscError("prev req ref 0x%" PRIx64 " is not there", tmpRefId);
       break;
-    }
-  }
-
-  tmpRefId = pRequest->relation.nextRefId;
-  while (tmpRefId) {
-    pTmp = acquireRequest(tmpRefId);
-    if (pTmp) {
-      tmpRefId = pTmp->relation.nextRefId;
-      removeRequest(pTmp->self);
-      releaseRequest(pTmp->self);
     } else {
-      tscError("next req ref 0x%" PRIx64 " is not there", tmpRefId);
+      int64_t nextRefId = pUserReq->relation.nextRefId;
-      break;
+      releaseRequest(pUserReq->self);
+      if (nextRefId) {
+        pUserReq = acquireRequest(nextRefId);
+      }
     }
   }
-
+  bool hasSubRequest = pUserReq != pRequest || pRequest->relation.prevRefId != 0;
-  for (int32_t i = reqIdx; i >= 0; i--) {
-    destroyCtxInRequest(pReqList[i]);
-    if (pReqList[i]->relation.userRefId == pReqList[i]->self || 0 == pReqList[i]->relation.userRefId) {
-      pUserReq = pReqList[i];
-    } else {
-      removeRequest(pReqList[i]->self);
-    }
-  }
-
   if (pUserReq) {
+    destroyCtxInRequest(pUserReq);
     pUserReq->prevCode = code;
     memset(&pUserReq->relation, 0, sizeof(pUserReq->relation));
   } else {
-    tscError("user req is missing");
+    tscError("User req is missing");
+    removeFromMostPrevReq(pRequest);
     return;
   }
-
+  if (hasSubRequest)
+    removeFromMostPrevReq(pRequest);
+  else
+    releaseRequest(pUserReq->self);
   doAsyncQuery(pUserReq, true);
 }
 

tests/parallel_test/cases.task

@@ -238,7 +238,8 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqSubscribeStb-r3.py -N 5
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq3mnodeSwitch.py -N 6 -M 3 -i True
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq3mnodeSwitch.py -N 6 -M 3 -n 3 -i True
-,,y,system-test,./pytest.sh python3 test.py -f 7-tmq/tmqVnodeTransform.py -N 2 -n 1
+,,y,system-test,./pytest.sh python3 test.py -f 7-tmq/tmqVnodeTransform-db-removewal.py -N 2 -n 1
+,,y,system-test,./pytest.sh python3 test.py -f 7-tmq/tmqVnodeTransform-stb-removewal.py -N 6 -n 3
 ,,y,system-test,./pytest.sh python3 test.py -f 7-tmq/tmqVnodeTransform-stb.py -N 2 -n 1
 ,,y,system-test,./pytest.sh python3 test.py -f 7-tmq/tmqVnodeTransform-stb.py -N 6 -n 3
 #,,y,system-test,./pytest.sh python3 test.py -f 7-tmq/tmqVnodeTransform-db.py -N 6 -n 3

tests/system-test/7-tmq/tmqVnodeTransform-db-removewal.py

@@ -123,134 +123,6 @@ class TDTestCase:
         tdSql.query(redistributeSql)
         tdLog.debug("redistributeSql ok")
         
-    def tmqCase1(self):
-        tdLog.printNoPrefix("======== test case 1: ")
-        paraDict = {'dbName':     'dbt',
-                    'dropFlag':   1,
-                    'event':      '',
-                    'vgroups':    1,
-                    'stbName':    'stb',
-                    'colPrefix':  'c',
-                    'tagPrefix':  't',
-                    'colSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1},{'type': 'TIMESTAMP', 'count':1}],
-                    'tagSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1}],
-                    'ctbPrefix':  'ctb',
-                    'ctbStartIdx': 0,
-                    'ctbNum':     10,
-                    'rowsPerTbl': 1000,
-                    'batchNum':   10,
-                    'startTs':    1640966400000,  # 2022-01-01 00:00:00.000
-                    'pollDelay':  60,
-                    'showMsg':    1,
-                    'showRow':    1,
-                    'snapshot':   0}
-
-        paraDict['vgroups'] = self.vgroups
-        paraDict['ctbNum'] = self.ctbNum
-        paraDict['rowsPerTbl'] = self.rowsPerTbl
-
-        topicNameList = ['topic1']
-        # expectRowsList = []
-        tmqCom.initConsumerTable()
-
-        tdLog.info("create topics from stb with filter")
-        queryString = "select * from %s.%s"%(paraDict['dbName'], paraDict['stbName'])
-        # sqlString = "create topic %s as stable %s" %(topicNameList[0], paraDict['stbName'])
-        sqlString = "create topic %s as %s" %(topicNameList[0], queryString)
-        tdLog.info("create topic sql: %s"%sqlString)
-        tdSql.execute(sqlString)
-        # tdSql.query(queryString)
-        # expectRowsList.append(tdSql.getRows())
-
-        # init consume info, and start tmq_sim, then check consume result
-        tdLog.info("insert consume info to consume processor")
-        consumerId   = 0
-        expectrowcnt = paraDict["rowsPerTbl"] * paraDict["ctbNum"] * 2
-        topicList    = topicNameList[0]
-        ifcheckdata  = 1
-        ifManualCommit = 1
-        keyList      = 'group.id:cgrp1, enable.auto.commit:true, auto.commit.interval.ms:200, auto.offset.reset:earliest'
-        tmqCom.insertConsumerInfo(consumerId, expectrowcnt,topicList,keyList,ifcheckdata,ifManualCommit)
-
-        tdLog.info("start consume processor")
-        tmqCom.startTmqSimProcess(pollDelay=paraDict['pollDelay'],dbName=paraDict["dbName"],showMsg=paraDict['showMsg'], showRow=paraDict['showRow'],snapshot=paraDict['snapshot'])
-        tdLog.info("wait the consume result")
-
-        tdLog.info("create ctb1")
-        tmqCom.create_ctable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"],ctbPrefix=paraDict['ctbPrefix'],
-                             ctbNum=paraDict["ctbNum"],ctbStartIdx=paraDict['ctbStartIdx'])
-        tdLog.info("insert data")
-        pInsertThread = tmqCom.asyncInsertDataByInterlace(paraDict)
-
-        tmqCom.getStartConsumeNotifyFromTmqsim()
-        tmqCom.getStartCommitNotifyFromTmqsim()
-
-        #restart dnode & remove wal
-        self.restartAndRemoveWal()
-
-        # redistribute vgroup
-        self.redistributeVgroups();
-
-        tdLog.info("create ctb2")
-        paraDict['ctbPrefix'] = "ctbn"
-        tmqCom.create_ctable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"],ctbPrefix=paraDict['ctbPrefix'],
-                             ctbNum=paraDict["ctbNum"],ctbStartIdx=paraDict['ctbStartIdx'])
-        tdLog.info("insert data")
-        pInsertThread1 = tmqCom.asyncInsertDataByInterlace(paraDict)
-        pInsertThread.join()
-        pInsertThread1.join()
-
-        expectRows = 1
-        resultList = tmqCom.selectConsumeResult(expectRows)
-
-        if expectrowcnt / 2 > resultList[0]:
-            tdLog.info("expect consume rows: %d, act consume rows: %d"%(expectrowcnt / 2, resultList[0]))
-            tdLog.exit("%d tmq consume rows error!"%consumerId)
-
-        # tmqCom.checkFileContent(consumerId, queryString)
-
-        time.sleep(10)
-        for i in range(len(topicNameList)):
-            tdSql.query("drop topic %s"%topicNameList[i])
-
-        tdLog.printNoPrefix("======== test case 1 end ...... ")
-
-    def tmqCase2(self):
-        tdLog.printNoPrefix("======== test case 2: ")
-        paraDict = {'dbName':'dbt'}
-
-        ntbName = "ntb"
-
-        topicNameList = ['topic2']
-        tmqCom.initConsumerTable()
-
-        sqlString = "create table %s.%s(ts timestamp, i nchar(8))" %(paraDict['dbName'], ntbName)
-        tdLog.info("create nomal table sql: %s"%sqlString)
-        tdSql.execute(sqlString)
-
-        tdLog.info("create topics from nomal table")
-        queryString = "select * from %s.%s"%(paraDict['dbName'], ntbName)
-        sqlString = "create topic %s as %s" %(topicNameList[0], queryString)
-        tdLog.info("create topic sql: %s"%sqlString)
-        tdSql.execute(sqlString)
-        tdSql.query("flush database %s"%(paraDict['dbName']))
-        #restart dnode & remove wal
-        self.restartAndRemoveWal()
-
-        # redistribute vgroup
-        self.redistributeVgroups();
-
-        sqlString = "alter table %s.%s modify column i nchar(16)" %(paraDict['dbName'], ntbName)
-        tdLog.info("alter table sql: %s"%sqlString)
-        tdSql.error(sqlString)
-        expectRows = 0
-        resultList = tmqCom.selectConsumeResult(expectRows)
-        time.sleep(1)
-        for i in range(len(topicNameList)):
-            tdSql.query("drop topic %s"%topicNameList[i])
-
-        tdLog.printNoPrefix("======== test case 2 end ...... ")
-
     def tmqCase3(self):
         tdLog.printNoPrefix("======== test case 3: ")
         paraDict = {'dbName':     'dbt',
@@ -330,12 +202,90 @@ class TDTestCase:
 
         tdLog.printNoPrefix("======== test case 3 end ...... ")
 
+    def tmqCaseDbname(self):
+        tdLog.printNoPrefix("======== test case  4 subscrib Dbname start: ")
+        paraDict = {'dbName':     'dbt',
+                    'dropFlag':   1,
+                    'event':      '',
+                    'vgroups':    1,
+                    'stbName':    'stbn',
+                    'colPrefix':  'c',
+                    'tagPrefix':  't',
+                    'colSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1},{'type': 'TIMESTAMP', 'count':1}],
+                    'tagSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1}],
+                    'ctbPrefix':  'ctb',
+                    'ctbStartIdx': 0,
+                    'ctbNum':     10,
+                    'rowsPerTbl': 1000,
+                    'batchNum':   10,
+                    'startTs':    1640966400000,  # 2022-01-01 00:00:00.000
+                    'pollDelay':  10,
+                    'showMsg':    1,
+                    'showRow':    1,
+                    'snapshot':   0}
+
+        paraDict['vgroups'] = self.vgroups
+        paraDict['ctbNum'] = self.ctbNum
+        paraDict['rowsPerTbl'] = self.rowsPerTbl
+
+        topicNameList = ['topic4']
+        tmqCom.initConsumerTable()
+
+        tdLog.info("create stb")
+        tmqCom.create_stable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"])
+
+        tdLog.info("create ctb")
+        tmqCom.create_ctable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"],ctbPrefix=paraDict['ctbPrefix'],
+                             ctbNum=paraDict["ctbNum"],ctbStartIdx=paraDict['ctbStartIdx'])
+        tdLog.info("insert data")
+        tmqCom.insert_data_interlaceByMultiTbl(tsql=tdSql,dbName=paraDict["dbName"],ctbPrefix=paraDict["ctbPrefix"],
+                                               ctbNum=paraDict["ctbNum"],rowsPerTbl=paraDict["rowsPerTbl"],batchNum=paraDict["batchNum"],
+                                               startTs=paraDict["startTs"],ctbStartIdx=paraDict['ctbStartIdx'])
+
+        tdLog.info("create topics from database ")
+        queryString = "database  %s "%(paraDict['dbName'])
+        sqlString = "create topic %s as %s" %(topicNameList[0], queryString)
+        tdLog.info("create topic sql: %s"%sqlString)
+        tdSql.execute(sqlString)
+
+        # init consume info, and start tmq_sim, then check consume result
+        tdLog.info("insert consume info to consume processor")
+        consumerId   = 0
+        expectrowcnt = paraDict["rowsPerTbl"] * paraDict["ctbNum"]
+        topicList    = topicNameList[0]
+        ifcheckdata  = 1
+        ifManualCommit = 1
+        keyList      = 'group.id:cgrp1, enable.auto.commit:true, auto.commit.interval.ms:200, auto.offset.reset:earliest'
+        tmqCom.insertConsumerInfo(consumerId, expectrowcnt,topicList,keyList,ifcheckdata,ifManualCommit)
+
+        tdLog.info("start consume processor")
+        tmqCom.startTmqSimProcess(pollDelay=paraDict['pollDelay'],dbName=paraDict["dbName"],showMsg=paraDict['showMsg'], showRow=paraDict['showRow'],snapshot=paraDict['snapshot'])
+        tdLog.info("wait the consume result")
+
+        time.sleep(1)
+        # restart dnode & remove wal
+        self.restartAndRemoveWal()
+
+        # redistribute vgroup
+        self.redistributeVgroups()
+
+        tdLog.info("start consume processor")
+        tmqCom.startTmqSimProcess(pollDelay=paraDict['pollDelay'],dbName=paraDict["dbName"],showMsg=paraDict['showMsg'], showRow=paraDict['showRow'],snapshot=paraDict['snapshot'])
+        tdLog.info("wait the consume result")
+        expectRows = 2
+        resultList = tmqCom.selectConsumeResult(expectRows)
+        
+        time.sleep(6)
+        for i in range(len(topicNameList)):
+            tdSql.query("drop topic %s"%topicNameList[i])
+ 
+        tdLog.printNoPrefix("======== test case 4 subscrib Dbname end ...... ")
+
     def run(self):
-        self.prepareTestEnv()
-        self.tmqCase1()
-        self.tmqCase2()
         self.prepareTestEnv()
         self.tmqCase3()
+        self.prepareTestEnv()
+        self.tmqCaseDbname()
 
     def stop(self):
         tdSql.close()

tests/system-test/7-tmq/tmqVnodeTransform-stb-removewal.py

@@ -0,0 +1,266 @@
+
+import taos
+import sys
+import time
+import socket
+import os
+import threading
+import math
+
+from util.log import *
+from util.sql import *
+from util.cases import *
+from util.dnodes import *
+from util.common import *
+from util.cluster import *
+sys.path.append("./7-tmq")
+from tmqCommon import *
+
+class TDTestCase:
+    def __init__(self):
+        self.vgroups    = 1
+        self.ctbNum     = 10
+        self.rowsPerTbl = 1000
+
+    def init(self, conn, logSql, replicaVar=1):
+        self.replicaVar = int(replicaVar)
+        tdLog.debug(f"start to excute {__file__}")
+        tdSql.init(conn.cursor(), True)
+
+    def getDataPath(self):
+        selfPath = tdCom.getBuildPath()
+
+        return selfPath + '/../sim/dnode%d/data/vnode/vnode%d/wal/*';
+
+    def prepareTestEnv(self):
+        tdLog.printNoPrefix("======== prepare test env include database, stable, ctables, and insert data: ")
+        paraDict = {'dbName':     'dbt',
+                    'dropFlag':   1,
+                    'event':      '',
+                    'vgroups':    1,
+                    'stbName':    'stb',
+                    'colPrefix':  'c',
+                    'tagPrefix':  't',
+                    'colSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1},{'type': 'TIMESTAMP', 'count':1}],
+                    'tagSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1}],
+                    'ctbPrefix':  'ctb',
+                    'ctbStartIdx': 0,
+                    'ctbNum':     10,
+                    'rowsPerTbl': 1000,
+                    'batchNum':   10,
+                    'startTs':    1640966400000,  # 2022-01-01 00:00:00.000
+                    'pollDelay':  60,
+                    'showMsg':    1,
+                    'showRow':    1,
+                    'snapshot':   0}
+
+        paraDict['vgroups'] = self.vgroups
+        paraDict['ctbNum'] = self.ctbNum
+        paraDict['rowsPerTbl'] = self.rowsPerTbl
+
+        tdCom.drop_all_db()
+        tmqCom.initConsumerTable()
+        tdCom.create_database(tdSql, paraDict["dbName"],paraDict["dropFlag"], wal_retention_period=36000,vgroups=paraDict["vgroups"],replica=self.replicaVar)
+        tdLog.info("create stb")
+        tmqCom.create_stable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"])
+        # tdLog.info("create ctb")
+        # tmqCom.create_ctable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"],ctbPrefix=paraDict['ctbPrefix'],
+        #                      ctbNum=paraDict["ctbNum"],ctbStartIdx=paraDict['ctbStartIdx'])
+        # tdLog.info("insert data")
+        # tmqCom.insert_data_interlaceByMultiTbl(tsql=tdSql,dbName=paraDict["dbName"],ctbPrefix=paraDict["ctbPrefix"],
+        #                                        ctbNum=paraDict["ctbNum"],rowsPerTbl=paraDict["rowsPerTbl"],batchNum=paraDict["batchNum"],
+        #                                        startTs=paraDict["startTs"],ctbStartIdx=paraDict['ctbStartIdx'])
+
+        # tdLog.info("restart taosd to ensure that the data falls into the disk")
+        # tdDnodes.stop(1)
+        # tdDnodes.start(1)
+        # tdSql.query("flush database %s"%(paraDict['dbName']))
+        return
+
+    def restartAndRemoveWal(self):
+        tdDnodes = cluster.dnodes
+        tdSql.query("select * from information_schema.ins_vnodes")
+        for result in tdSql.queryResult:
+            if result[2] == 'dbt':
+                tdLog.debug("dnode is %d"%(result[0]))
+                dnodeId = result[0]
+                vnodeId = result[1]
+
+                tdDnodes[dnodeId - 1].stoptaosd()
+                time.sleep(1)
+                dataPath = self.getDataPath()
+                dataPath = dataPath%(dnodeId,vnodeId)
+                os.system('rm -rf ' + dataPath)
+                tdLog.debug("dataPath:%s"%dataPath)
+                tdDnodes[dnodeId - 1].starttaosd()
+                time.sleep(1)
+                break
+        tdLog.debug("restart dnode ok")
+
+    def redistributeVgroups(self):
+        dnodesList = []
+        tdSql.query("show dnodes")
+        for result in tdSql.queryResult:
+            dnodesList.append(result[0])
+        print("dnodeList:",dnodesList)
+        tdSql.query("select * from information_schema.ins_vnodes")
+        vnodeId = 0
+        for result in tdSql.queryResult:
+            if result[2] == 'dbt':
+                tdLog.debug("dnode is %d"%(result[0]))
+                dnodesList.remove(result[0])
+                vnodeId = result[1]
+        print("its all data",dnodesList)
+        # if self.replicaVar == 1:
+        #     redistributeSql = "redistribute vgroup %d dnode %d" %(vnodeId, dnodesList[0])
+        # else:
+        redistributeSql = f"redistribute vgroup {vnodeId} " 
+        for vgdnode in dnodesList:
+            redistributeSql += f"dnode {vgdnode} "
+        print(redistributeSql)
+        
+        tdLog.debug(f"redistributeSql:{redistributeSql}")
+        tdSql.query(redistributeSql)
+        tdLog.debug("redistributeSql ok")
+
+    def tmqCase1(self):
+        tdLog.printNoPrefix("======== test case 1: ")
+        paraDict = {'dbName':     'dbt',
+                    'dropFlag':   1,
+                    'event':      '',
+                    'vgroups':    1,
+                    'stbName':    'stb',
+                    'colPrefix':  'c',
+                    'tagPrefix':  't',
+                    'colSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1},{'type': 'TIMESTAMP', 'count':1}],
+                    'tagSchema':   [{'type': 'INT', 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'DOUBLE', 'count':1},{'type': 'BINARY', 'len':32, 'count':1},{'type': 'NCHAR', 'len':32, 'count':1}],
+                    'ctbPrefix':  'ctb',
+                    'ctbStartIdx': 0,
+                    'ctbNum':     10,
+                    'rowsPerTbl': 1000,
+                    'batchNum':   10,
+                    'startTs':    1640966400000,  # 2022-01-01 00:00:00.000
+                    'pollDelay':  60,
+                    'showMsg':    1,
+                    'showRow':    1,
+                    'snapshot':   0}
+
+        paraDict['vgroups'] = self.vgroups
+        paraDict['ctbNum'] = self.ctbNum
+        paraDict['rowsPerTbl'] = self.rowsPerTbl
+
+        topicNameList = ['topic1']
+        # expectRowsList = []
+        tmqCom.initConsumerTable()
+
+        tdLog.info("create topics from stb with filter")
+        queryString = "select * from %s.%s"%(paraDict['dbName'], paraDict['stbName'])
+        # sqlString = "create topic %s as stable %s" %(topicNameList[0], paraDict['stbName'])
+        sqlString = "create topic %s as %s" %(topicNameList[0], queryString)
+        tdLog.info("create topic sql: %s"%sqlString)
+        tdSql.execute(sqlString)
+        # tdSql.query(queryString)
+        # expectRowsList.append(tdSql.getRows())
+
+        # init consume info, and start tmq_sim, then check consume result
+        tdLog.info("insert consume info to consume processor")
+        consumerId   = 0
+        expectrowcnt = paraDict["rowsPerTbl"] * paraDict["ctbNum"] * 2
+        topicList    = topicNameList[0]
+        ifcheckdata  = 1
+        ifManualCommit = 1
+        keyList      = 'group.id:cgrp1, enable.auto.commit:true, auto.commit.interval.ms:200, auto.offset.reset:earliest'
+        tmqCom.insertConsumerInfo(consumerId, expectrowcnt,topicList,keyList,ifcheckdata,ifManualCommit)
+
+        tdLog.info("start consume processor")
+        tmqCom.startTmqSimProcess(pollDelay=paraDict['pollDelay'],dbName=paraDict["dbName"],showMsg=paraDict['showMsg'], showRow=paraDict['showRow'],snapshot=paraDict['snapshot'])
+        tdLog.info("wait the consume result")
+
+        tdLog.info("create ctb1")
+        tmqCom.create_ctable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"],ctbPrefix=paraDict['ctbPrefix'],
+                             ctbNum=paraDict["ctbNum"],ctbStartIdx=paraDict['ctbStartIdx'])
+        tdLog.info("insert data")
+        pInsertThread = tmqCom.asyncInsertDataByInterlace(paraDict)
+
+        tmqCom.getStartConsumeNotifyFromTmqsim()
+        tmqCom.getStartCommitNotifyFromTmqsim()
+
+        #restart dnode & remove wal
+        self.restartAndRemoveWal()
+
+        # redistribute vgroup
+        self.redistributeVgroups();
+
+        tdLog.info("create ctb2")
+        paraDict['ctbPrefix'] = "ctbn"
+        tmqCom.create_ctable(tdSql, dbName=paraDict["dbName"],stbName=paraDict["stbName"],ctbPrefix=paraDict['ctbPrefix'],
+                             ctbNum=paraDict["ctbNum"],ctbStartIdx=paraDict['ctbStartIdx'])
+        tdLog.info("insert data")
+        pInsertThread1 = tmqCom.asyncInsertDataByInterlace(paraDict)
+        pInsertThread.join()
+        pInsertThread1.join()
+
+        expectRows = 1
+        resultList = tmqCom.selectConsumeResult(expectRows)
+
+        if expectrowcnt / 2 > resultList[0]:
+            tdLog.info("expect consume rows: %d, act consume rows: %d"%(expectrowcnt / 2, resultList[0]))
+            tdLog.exit("%d tmq consume rows error!"%consumerId)
+
+        # tmqCom.checkFileContent(consumerId, queryString)
+
+        time.sleep(10)
+        for i in range(len(topicNameList)):
+            tdSql.query("drop topic %s"%topicNameList[i])
+
+        tdLog.printNoPrefix("======== test case 1 end ...... ")
+
+    def tmqCase2(self):
+        tdLog.printNoPrefix("======== test case 2: ")
+        paraDict = {'dbName':'dbt'}
+
+        ntbName = "ntb"
+
+        topicNameList = ['topic2']
+        tmqCom.initConsumerTable()
+
+        sqlString = "create table %s.%s(ts timestamp, i nchar(8))" %(paraDict['dbName'], ntbName)
+        tdLog.info("create nomal table sql: %s"%sqlString)
+        tdSql.execute(sqlString)
+
+        tdLog.info("create topics from nomal table")
+        queryString = "select * from %s.%s"%(paraDict['dbName'], ntbName)
+        sqlString = "create topic %s as %s" %(topicNameList[0], queryString)
+        tdLog.info("create topic sql: %s"%sqlString)
+        tdSql.execute(sqlString)
+        tdSql.query("flush database %s"%(paraDict['dbName']))
+        #restart dnode & remove wal
+        self.restartAndRemoveWal()
+
+        # redistribute vgroup
+        self.redistributeVgroups();
+
+        sqlString = "alter table %s.%s modify column i nchar(16)" %(paraDict['dbName'], ntbName)
+        tdLog.info("alter table sql: %s"%sqlString)
+        tdSql.error(sqlString)
+        expectRows = 0
+        resultList = tmqCom.selectConsumeResult(expectRows)
+        time.sleep(1)
+        for i in range(len(topicNameList)):
+            tdSql.query("drop topic %s"%topicNameList[i])
+
+        tdLog.printNoPrefix("======== test case 2 end ...... ")
+
+    def run(self):
+        self.prepareTestEnv()
+        self.tmqCase1()
+        self.tmqCase2()
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+event = threading.Event()
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())