From 97bd6a9f9212abc5a4c45e1b5f4e66b0744033f9 Mon Sep 17 00:00:00 2001
From: Liu Jicong <liujicong@qq.com>
Date: Wed, 4 Aug 2021 00:18:10 +0800
Subject: [PATCH] [TD-5694]<fix>: fix memory alloc

---
 src/common/src/tdataformat.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/common/src/tdataformat.c b/src/common/src/tdataformat.c
index c96c916a01..16c96bb16f 100644
--- a/src/common/src/tdataformat.c
+++ b/src/common/src/tdataformat.c
@@ -371,6 +371,11 @@ int tdInitDataCols(SDataCols *pCols, STSchema *pSchema) {
     pCols->cols = (SDataCol *)realloc(pCols->cols, sizeof(SDataCol) * pCols->maxCols);
     if (pCols->cols == NULL) return -1;
   }
+  for(i = 0; i < pCols->maxCols; i++) {
+    tfree(pCols->cols[i].pData);
+    pCols->cols[i].dataOff = NULL;
+    pCols->cols[i].spaceSize = 0;
+  }
 
   if (schemaTLen(pSchema) > pCols->maxRowSize) {
     pCols->maxRowSize = schemaTLen(pSchema);