fix:[TS-5906]clear meta cache for subscription if tag is changed

source/libs/executor/src/executor.c

@@ -469,6 +469,13 @@ int32_t qUpdateTableListForStreamScanner(qTaskInfo_t tinfo, const SArray* tableI
   }
 
   SStreamScanInfo* pScanInfo = pInfo->info;
+  if (pInfo->pTaskInfo->execModel == OPTR_EXEC_MODEL_QUEUE) {  // clear meta cache for subscription if tag is changed
+    for (int32_t i = 0; i < taosArrayGetSize(tableIdList); ++i) {
+      int64_t*        uid = (int64_t*)taosArrayGet(tableIdList, i);
+      STableScanInfo* pTableScanInfo = pScanInfo->pTableScanOp->info;
+      taosLRUCacheErase(pTableScanInfo->base.metaCache.pTableMetaEntryCache, uid, LONG_BYTES);
+    }
+  }
 
   if (isAdd) {  // add new table id
     SArray* qa = NULL;

tests/parallel_test/cases.task

@@ -329,6 +329,7 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_taosx.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_ts5466.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_ts-5473.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_ts5906.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/td-32187.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/td-33225.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_ts4563.py

tests/system-test/7-tmq/tmq_ts5906.py

@@ -0,0 +1,90 @@
+
+import taos
+import sys
+import time
+import socket
+import os
+import threading
+
+from util.log import *
+from util.sql import *
+from util.cases import *
+from util.dnodes import *
+from util.common import *
+from taos.tmq import *
+from taos import *
+
+sys.path.append("./7-tmq")
+from tmqCommon import *
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143, 'asynclog': 0}
+
+    def init(self, conn, logSql, replicaVar=1):
+        self.replicaVar = int(replicaVar)
+        tdLog.debug(f"start to excute {__file__}")
+        tdSql.init(conn.cursor())
+        #tdSql.init(conn.cursor(), logSql)  # output sql.txt file
+
+    def test(self):
+        tdSql.execute(f'create database if not exists db vgroups 1')
+        tdSql.execute(f'use db')
+        tdSql.execute(f'CREATE STABLE meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)')
+        tdSql.execute("INSERT INTO d1001 USING meters TAGS('California.SanFrancisco1', 2) VALUES('2018-10-05 14:38:05.000',10.30000,219,0.31000)")
+
+
+        tdSql.execute(f'create topic t0 as select * from meters')
+
+        consumer_dict = {
+            "group.id": "g1",
+            "td.connect.user": "root",
+            "td.connect.pass": "taosdata",
+            "auto.offset.reset": "earliest",
+        }
+        consumer = Consumer(consumer_dict)
+
+        try:
+            consumer.subscribe(["t0"])
+        except TmqError:
+            tdLog.exit(f"subscribe error")
+
+        index = 0;
+        try:
+            while True:
+                if index == 2:
+                    break
+                res = consumer.poll(5)
+                print(res)
+                if not res:
+                    print("res null")
+                    break
+                val = res.value()
+                if val is None:
+                    continue
+                for block in val:
+                    data = block.fetchall()
+                    for element in data:
+                        print(f"data len: {len(data)}")
+                        print(element)
+                    if index == 0 and data[0][-1] != 2:
+                        tdLog.exit(f"error: {data[0][-1]}")
+                    if index == 1 and data[0][-1] != 100:
+                        tdLog.exit(f"error: {data[0][-1]}")
+
+                tdSql.execute("alter table d1001 set tag groupId = 100")
+                tdSql.execute("INSERT INTO d1001 VALUES('2018-10-05 14:38:06.000',10.30000,219,0.31000)")
+                index += 1
+        finally:
+            consumer.close()
+
+
+    def run(self):
+        self.test()
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())