From 5c819f2534d278c1b6013f5f822087b0f5b9cd5b Mon Sep 17 00:00:00 2001
From: dengyihao <luomoxyz@126.com>
Date: Tue, 9 Jun 2020 17:23:49 +0800
Subject: [PATCH 1/2] optimized code

---
 src/client/src/tscAsync.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/src/client/src/tscAsync.c b/src/client/src/tscAsync.c
index 23071fccfa..c61402192d 100644
--- a/src/client/src/tscAsync.c
+++ b/src/client/src/tscAsync.c
@@ -449,14 +449,13 @@ void tscTableMetaCallBack(void *param, TAOS_RES *res, int code) {
       tscTrace("%p update table meta in local cache, continue to process sql and send corresponding subquery", pSql);
 
       STableMetaInfo* pTableMetaInfo = tscGetMetaInfo(pQueryInfo, 0);
-      if (pTableMetaInfo->pTableMeta == NULL){
-        code = tscGetTableMeta(pSql, pTableMetaInfo);
-        if (code == TSDB_CODE_TSC_ACTION_IN_PROGRESS) {
-          return;
-        } else {
-          assert(code == TSDB_CODE_SUCCESS);      
-        }
+      code = tscGetTableMeta(pSql, pTableMetaInfo);
+      if (code == TSDB_CODE_TSC_ACTION_IN_PROGRESS) {
+        return;
+      } else {
+        assert(code == TSDB_CODE_SUCCESS);      
       }
+     
       
       assert((tscGetNumOfTags(pTableMetaInfo->pTableMeta) != 0) && pTableMetaInfo->vgroupIndex >= 0 && pSql->param != NULL);
 

From 7e55813961d2727d9018bd02a33e1a8c3f2ad1c4 Mon Sep 17 00:00:00 2001
From: dengyihao <luomoxyz@126.com>
Date: Tue, 9 Jun 2020 17:54:17 +0800
Subject: [PATCH 2/2] optimized code

---
 src/client/src/tscUtil.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 215b544639..2701d2b572 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -396,14 +396,12 @@ void tscPartiallyFreeSqlObj(SSqlObj* pSql) {
   if (pObj->signature == pObj) {
     pthread_mutex_lock(&pObj->mutex);
     tfree(pSql->sqlstr);
-    pSql->sqlstr = NULL;
     pthread_mutex_unlock(&pObj->mutex);
   }
   
   tscFreeSqlResult(pSql);
   
   tfree(pSql->pSubs);
-  pSql->pSubs = NULL;
   pSql->freed = 0;
   pSql->numOfSubs = 0;