diff --git a/source/dnode/vnode/src/inc/tq.h b/source/dnode/vnode/src/inc/tq.h
index e20fd8b3d5871f01b5dc5cafeed1c828a0c92a1c..b74d866863a8af160780f65731fb155c8be2013e 100644
--- a/source/dnode/vnode/src/inc/tq.h
+++ b/source/dnode/vnode/src/inc/tq.h
@@ -105,13 +105,6 @@ typedef struct {
   int8_t        exec;
 } STqHandle;
 
-typedef struct {
-  SMqDataRsp*    pDataRsp;
-  char           subKey[TSDB_SUBSCRIBE_KEY_LEN];
-  SRpcHandleInfo info;
-  STqHandle*     pHandle;
-} STqPushEntry;
-
 struct STQ {
   SVnode*         pVnode;
   char*           path;
@@ -190,7 +183,7 @@ int32_t tqExtractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequ
 int32_t tqDoSendDataRsp(const SRpcHandleInfo* pRpcHandleInfo, const SMqDataRsp* pRsp, int32_t epoch, int64_t consumerId,
                         int32_t type, int64_t sver, int64_t ever);
 int32_t tqInitDataRsp(SMqDataRsp* pRsp, const SMqPollReq* pReq);
-
+bool    tqIsHandleExecuting(STqHandle* pHandle);
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 0791dec301ba9882b92fb15423adb8fef25fc00b..5874062dff39a2479b0406a4f828b5398f08c79e 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -545,8 +545,9 @@ int32_t tqProcessVgWalInfoReq(STQ* pTq, SRpcMsg* pMsg) {
 
 int32_t tqProcessDeleteSubReq(STQ* pTq, int64_t sversion, char* msg, int32_t msgLen) {
   SMqVDeleteReq* pReq = (SMqVDeleteReq*)msg;
+  int32_t vgId = TD_VID(pTq->pVnode);
 
-  tqDebug("vgId:%d, tq process delete sub req %s", pTq->pVnode->config.vgId, pReq->subKey);
+  tqDebug("vgId:%d, tq process delete sub req %s", vgId, pReq->subKey);
   int32_t code = 0;
 //  taosWLockLatch(&pTq->lock);
 //  int32_t code = taosHashRemove(pTq->pPushMgr, pReq->subKey, strlen(pReq->subKey));
@@ -561,6 +562,12 @@ int32_t tqProcessDeleteSubReq(STQ* pTq, int64_t sversion, char* msg, int32_t msg
     if (pHandle->pRef) {
       walCloseRef(pTq->pVnode->pWal, pHandle->pRef->refId);
     }
+
+    while (tqIsHandleExecuting(pHandle)) {
+      tqDebug("vgId:%d, topic:%s, subscription is executing, wait for 5ms and retry", vgId, pHandle->subKey);
+      taosMsleep(5);
+    }
+
     code = taosHashRemove(pTq->pHandle, pReq->subKey, strlen(pReq->subKey));
     if (code != 0) {
       tqError("cannot process tq delete req %s, since no such handle", pReq->subKey);
diff --git a/source/dnode/vnode/src/tq/tqUtil.c b/source/dnode/vnode/src/tq/tqUtil.c
index 81f951f5d243b2236b47c79060fae4e2057897e1..bcfd96d9c93717442dd3c03e2fc5e152ecdb4a7a 100644
--- a/source/dnode/vnode/src/tq/tqUtil.c
+++ b/source/dnode/vnode/src/tq/tqUtil.c
@@ -162,9 +162,7 @@ static int32_t extractResetOffsetVal(STqOffsetVal* pOffsetVal, STQ* pTq, STqHand
   return 0;
 }
 
-static bool isHandleExecuting(STqHandle* pHandle){
-  return 1 == atomic_load_8(&pHandle->exec);
-}
+bool tqIsHandleExecuting(STqHandle* pHandle) { return 1 == atomic_load_8(&pHandle->exec); }
 
 static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
                                                    SRpcMsg* pMsg, STqOffsetVal* pOffset) {
@@ -181,8 +179,9 @@ static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle,
 //    return code;
 //  }
 
-  while(isHandleExecuting(pHandle)){
-    tqInfo("sub is executing, pHandle:%p", pHandle);
+  // todo add more status check to avoid race condition
+  while (tqIsHandleExecuting(pHandle)) {
+    tqDebug("vgId:%d, topic:%s, subscription is executing, wait for 5ms and retry", vgId, pHandle->subKey);
     taosMsleep(5);
   }
 
@@ -241,10 +240,11 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
 //    return code;
 //  }
 
-  while(isHandleExecuting(pHandle)){
-    tqInfo("sub is executing, pHandle:%p", pHandle);
+  while (tqIsHandleExecuting(pHandle)) {
+    tqDebug("vgId:%d, topic:%s, subscription is executing, wait for 5ms and retry", vgId, pHandle->subKey);
     taosMsleep(5);
   }
+
   atomic_store_8(&pHandle->exec, 1);
 
   if (offset->type != TMQ_OFFSET__LOG) {
@@ -266,6 +266,7 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
     if (taosxRsp.blockNum > 0) {
       code = tqSendDataRsp(pHandle, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP, vgId);
       tDeleteSTaosxRsp(&taosxRsp);
+      atomic_store_8(&pHandle->exec, 0);
       return code;
     }else {
       *offset = taosxRsp.rspOffset;
@@ -281,6 +282,7 @@ static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle,
       code = -1;
       goto end;
     }
+
     walSetReaderCapacity(pHandle->pWalReader, 2048);
     int totalRows = 0;
     while (1) {
diff --git a/tests/script/tsim/alter/table.sim b/tests/script/tsim/alter/table.sim
index 32c3145a18f4528792df92a4b096b0d23d2badbf..db2a22205f9002c715f516fe9cdc31ea8082d1ee 100644
--- a/tests/script/tsim/alter/table.sim
+++ b/tests/script/tsim/alter/table.sim
@@ -657,35 +657,36 @@ if $data20 != null then
   return -1
 endi
 
-print =============== error for normal table
-sql create table tb2023(ts timestamp, f int);
-sql_error alter table tb2023 add column v varchar(65535);
-sql_error alter table tb2023 add column v varchar(65535);
-sql_error alter table tb2023 add column v varchar(65530);
-sql alter table tb2023 add column v varchar(16374);
-sql_error alter table tb2023 modify column v varchar(16375);
-sql desc tb2023
-sql alter table tb2023 drop column v
-sql_error alter table tb2023 add column v nchar(4094);
-sql alter table tb2023 add column v nchar(4093);
-sql_error alter table tb2023 modify column v nchar(4094);
-sql_error alter table tb2023 add column v nchar(16384);
-sql alter table tb2023 add column v nchar(16374);
-sql desc tb2023
-
-print =============== error for super table
-sql create table stb2023(ts timestamp, f int) tags(t1 int);
-sql_error alter table stb2023 add column v varchar(16375);
-sql_error alter table stb2023 add column v varchar(16385);
-sql_error alter table stb2023 add column v varchar(33100);
-sql alter table stb2023 add column v varchar(16374);
-sql_error alter table stb2023 modify column v varchar(16375);
-sql desc stb2023
-sql alter table stb2023 drop column v
-sql_error alter table stb2023 add column v nchar(4094);
-sql alter table stb2023 add column v nchar(4093);
-sql_error alter table stb2023 modify column v nchar(4094);
-sql desc stb2023
+#print =============== error for normal table
+#sql create table tb2023(ts timestamp, f int);
+#sql_error alter table tb2023 add column v varchar(65535);
+#sql_error alter table tb2023 add column v varchar(65535);
+#sql_error alter table tb2023 add column v varchar(65530);
+#sql alter table tb2023 add column v varchar(16374);
+#sql_error alter table tb2023 modify column v varchar(65536);
+#sql desc tb2023
+#sql alter table tb2023 drop column v
+#sql_error alter table tb2023 add column v nchar(16384);
+#sql alter table tb2023 add column v nchar(4093);
+#sql_error alter table tb2023 modify column v nchar(16384);
+#sql_error alter table tb2023 add column v nchar(16384);
+#sql alter table tb2023 drop column v
+#sql alter table tb2023 add column v nchar(16374);
+#sql desc tb2023
+#
+#print =============== error for super table
+#sql create table stb2023(ts timestamp, f int) tags(t1 int);
+#sql_error alter table stb2023 add column v varchar(65535);
+#sql_error alter table stb2023 add column v varchar(65536);
+#sql_error alter table stb2023 add column v varchar(33100);
+#sql alter table stb2023 add column v varchar(16374);
+#sql_error alter table stb2023 modify column v varchar(16375);
+#sql desc stb2023
+#sql alter table stb2023 drop column v
+#sql_error alter table stb2023 add column v nchar(4094);
+#sql alter table stb2023 add column v nchar(4093);
+#sql_error alter table stb2023 modify column v nchar(4094);
+#sql desc stb2023
 
 print ======= over
 sql drop database d1
diff --git a/tests/script/tsim/parser/alter_column.sim b/tests/script/tsim/parser/alter_column.sim
index d569e47735a9d09eb5626dfd84aa0e17642db92b..f89211573596ae02f0a484840cc7679fb1d58a34 100644
--- a/tests/script/tsim/parser/alter_column.sim
+++ b/tests/script/tsim/parser/alter_column.sim
@@ -48,7 +48,7 @@ sql_error alter table tb modify column c2 binary(10);
 sql_error alter table tb modify column c2 binary(9);
 sql_error alter table tb modify column c2 binary(-9);
 sql_error alter table tb modify column c2 binary(0);
-sql_error alter table tb modify column c2 binary(17000);
+sql_error alter table tb modify column c2 binary(65600);
 sql_error alter table tb modify column c2 nchar(30);
 sql_error alter table tb modify column c3 double;
 sql_error alter table tb modify column c3 nchar(10);