From 4780e88ce92799245a9840ca0943601a7ff4be7c Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Mon, 24 Oct 2022 14:16:17 +0800
Subject: [PATCH] fix: coverity issues

CID: 400330
---
 source/libs/scalar/src/filter.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source/libs/scalar/src/filter.c b/source/libs/scalar/src/filter.c
index 3ef32a303e..e7f3fe7b49 100644
--- a/source/libs/scalar/src/filter.c
+++ b/source/libs/scalar/src/filter.c
@@ -4076,6 +4076,10 @@ bool filterExecute(SFilterInfo *info, SSDataBlock *pSrc, SColumnInfoData **p, SC
     *p = output.columnData;
     output.numOfRows = pSrc->info.rows;
 
+    if (*p == NULL) {
+      return false;
+    }
+
     bool keep = (*info->func)(info, pSrc->info.rows, *p, statis, numOfCols, &output.numOfQualified);
 
     // todo this should be return during filter procedure