Merge pull request #4800 from taosdata/hotfix/TD-2642

TD-2642

src/client/src/tscUtil.c

@@ -458,12 +458,13 @@ void tscFreeRegisteredSqlObj(void *pSql) {
 
   assert(RID_VALID(p->self));
 
-  tscFreeSqlObj(p);
-  taosReleaseRef(tscRefId, pTscObj->rid);
-
   int32_t num   = atomic_sub_fetch_32(&pTscObj->numOfObj, 1);
   int32_t total = atomic_sub_fetch_32(&tscNumOfObj, 1);
+
   tscDebug("%p free SqlObj, total in tscObj:%d, total:%d", pSql, num, total);
+  tscFreeSqlObj(p);
+  taosReleaseRef(tscRefId, pTscObj->rid);
+
 }
 
 void tscFreeSqlObj(SSqlObj* pSql) {