From 3b775c190ff6091f33adaab67fd0391eb868633c Mon Sep 17 00:00:00 2001
From: Liu Jicong <liujicong@qq.com>
Date: Tue, 3 Aug 2021 22:52:46 +0800
Subject: [PATCH] [TD-5694]<fix>: fix memory alloc

---
 src/common/src/tdataformat.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/common/src/tdataformat.c b/src/common/src/tdataformat.c
index 0082c11e4b..c3615e64fc 100644
--- a/src/common/src/tdataformat.c
+++ b/src/common/src/tdataformat.c
@@ -248,10 +248,9 @@ void dataColAppendVal(SDataCol *pCol, const void *value, int numOfRows, int maxP
     if (numOfRows > 0) {
       // Find the first not null value, fill all previouse values as NULL
       dataColSetNEleNull(pCol, numOfRows, maxPoints);
-    } else {
-      tdAllocMemForCol(pCol, maxPoints);
     }
   }
+  tdAllocMemForCol(pCol, maxPoints);
 
   if (IS_VAR_DATA_TYPE(pCol->type)) {
     // set offset
-- 
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