From 9ef435986304f95d90cdbe294620b807fe03c3e6 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Sun, 7 Feb 2021 13:21:11 +0800
Subject: [PATCH] [td-225] add comments.

---
 src/query/src/queryMain.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/query/src/queryMain.c b/src/query/src/queryMain.c
index b362f1d104..e262a3ad38 100644
--- a/src/query/src/queryMain.c
+++ b/src/query/src/queryMain.c
@@ -353,6 +353,7 @@ int32_t qDumpRetrieveResult(qinfo_t qinfo, SRetrieveTableRsp **pRsp, int32_t *co
     qDebug("QInfo:%p has more results to retrieve", pQInfo);
   }
 
+  // the memory should be freed if the code of pQInfo is not TSDB_CODE_SUCCESS
   if (pQInfo->code != TSDB_CODE_SUCCESS) {
     rpcFreeCont(*pRsp);
     *pRsp = NULL;
-- 
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