From 801dc53e43452336c40bd34bbc64018cba34c62c Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Mon, 24 Oct 2022 10:51:10 +0800
Subject: [PATCH] more fix

---
 source/dnode/vnode/src/meta/metaTable.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/source/dnode/vnode/src/meta/metaTable.c b/source/dnode/vnode/src/meta/metaTable.c
index dfa23602e8..9974e22572 100644
--- a/source/dnode/vnode/src/meta/metaTable.c
+++ b/source/dnode/vnode/src/meta/metaTable.c
@@ -731,7 +731,7 @@ static int metaAlterTableColumn(SMeta *pMeta, int64_t version, SVAlterTbReq *pAl
   SSchemaWrapper *pSchema;
   int             c;
 
-  if (pAlterTbReq->colName == NULL || pAlterTbReq->colNewName == NULL) {
+  if (pAlterTbReq->colName == NULL) {
     terrno = TSDB_CODE_INVALID_MSG;
     return -1;
   }
@@ -853,6 +853,10 @@ static int metaAlterTableColumn(SMeta *pMeta, int64_t version, SVAlterTbReq *pAl
       pColumn->bytes = pAlterTbReq->colModBytes;
       break;
     case TSDB_ALTER_TABLE_UPDATE_COLUMN_NAME:
+      if (pAlterTbReq->colNewName == NULL) {
+        terrno = TSDB_CODE_INVALID_MSG;
+        goto _err;
+      }
       if (pColumn == NULL) {
         terrno = TSDB_CODE_VND_TABLE_COL_NOT_EXISTS;
         goto _err;