From 78e178abb86995da6fb32b916d565281c211fe74 Mon Sep 17 00:00:00 2001
From: dapan1121 <89396746@qq.com>
Date: Wed, 24 Feb 2021 18:37:15 +0800
Subject: [PATCH] fix bug

---
 src/client/src/tscSubquery.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 380c438255..812027aa65 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -683,10 +683,14 @@ void tscBuildVgroupTableInfo(SSqlObj* pSql, STableMetaInfo* pTableMetaInfo, SArr
     prev = tt;
   }
 
-  pTableMetaInfo->pVgroupTables = result;
   pTableMetaInfo->vgroupIndex = 0;
+  
+  if (taosArrayGetSize(result) <= 0) {
+    pTableMetaInfo->pVgroupTables = NULL;
+    taosArrayDestroy(result);
+  } else {
+    pTableMetaInfo->pVgroupTables = result;
 
-  if (taosArrayGetSize(result) > 0) {
     SVgroupTableInfo* g = taosArrayGet(result, taosArrayGetSize(result) - 1);
     tscDebug("%p vgId:%d, tables:%"PRIzu, pSql, g->vgInfo.vgId, taosArrayGetSize(g->itemList));
   }
-- 
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