diff --git a/examples/c/tmq.c b/examples/c/tmq.c
index 24c415b2fcb233e7e32cd121903a929de7897437..94e0b86821b4dc601709b4b513027b5ccf882861 100644
--- a/examples/c/tmq.c
+++ b/examples/c/tmq.c
@@ -35,7 +35,7 @@ static void msg_process(TAOS_RES* msg) {
         return;
       }
 
-      TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 1");
+      TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 5");
       if (taos_errno(pRes) != 0) {
         printf("error in create db, reason:%s\n", taos_errstr(pRes));
         return;
@@ -82,7 +82,7 @@ int32_t init_env() {
     return -1;
   }
 
-  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 3");
+  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 5");
   if (taos_errno(pRes) != 0) {
     printf("error in create db, reason:%s\n", taos_errstr(pRes));
     return -1;
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index 7e01e5cd83e06544d00e5152cff65a6e52e6b3e3..d4d7c05b567f82f16a2229ed230a736368b7c676 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -2856,6 +2856,9 @@ static int32_t taosAlterTable(TAOS *taos, void *meta, int32_t metaLen){
   pVgData = NULL;
   pArray  = NULL;
   code    = pRequest->code;
+  if (code == TSDB_CODE_VND_TABLE_NOT_EXIST){
+    code = 0;
+  }
 
   end:
   taosArrayDestroy(pArray);
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index d25ae817c7a700217d066ede669cb28a8b5da845..d36947543790c7216c9d597cce4195269ddf2434 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -611,7 +611,7 @@ static int32_t vnodeProcessAlterTbReq(SVnode *pVnode, int64_t version, void *pRe
 
   // process
   if (metaAlterTable(pVnode->pMeta, version, &vAlterTbReq, &vMetaRsp) < 0) {
-    vAlterTbRsp.code = TSDB_CODE_INVALID_MSG;
+    vAlterTbRsp.code = terrno;
     tDecoderClear(&dc);
     rcode = -1;
     goto _exit;