From 32d8837bd22654314740c002618e7b05ae8e3c43 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Fri, 17 Jul 2020 11:19:08 +0800
Subject: [PATCH] [TD-948]

---
 src/common/src/tdataformat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/src/tdataformat.c b/src/common/src/tdataformat.c
index a33da175dc..719d80aa77 100644
--- a/src/common/src/tdataformat.c
+++ b/src/common/src/tdataformat.c
@@ -318,7 +318,7 @@ SDataCols *tdNewDataCols(int maxRowSize, int maxCols, int maxRows) {
   pCols->maxPoints = maxRows;
   pCols->bufSize = maxRowSize * maxRows;
 
-  pCols->buf = calloc(pCols->bufSize);
+  pCols->buf = calloc(1, pCols->bufSize);
   if (pCols->buf == NULL) {
     free(pCols);
     return NULL;
-- 
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