Merge pull request #5160 from taosdata/hotfix/TD-2948

[TD-2948]client crashes when building stddev query msg

src/client/src/tscServer.c

@@ -609,7 +609,7 @@ static int32_t tscEstimateQueryMsgSize(SSqlObj *pSql, int32_t clauseIndex) {
   }
 
   return MIN_QUERY_MSG_PKT_SIZE + minMsgSize() + sizeof(SQueryTableMsg) + srcColListSize + exprSize + tsBufSize +
-         tableSerialize + sqlLen + 4096;
+         tableSerialize + sqlLen + 4096 + pQueryInfo->bufLen;
 }
 
 static char *doSerializeTableInfo(SQueryTableMsg* pQueryMsg, SSqlObj *pSql, char *pMsg) {