From 7e7f91b8fc20f3128d9d741b3ee72b8565eabecd Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Wed, 22 Jul 2020 13:09:53 +0800
Subject: [PATCH] [td-225] add checks.

---
 src/tsdb/src/tsdbRead.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 6107c73921..9962019591 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -1490,6 +1490,7 @@ static int32_t getDataBlocksInFilesImpl(STsdbQueryHandle* pQueryHandle, bool* ex
     return code;
   }
 
+  assert(pQueryHandle->pFileGroup != NULL);
   cur->slot = ASCENDING_TRAVERSE(pQueryHandle->order)? 0:pQueryHandle->numOfBlocks-1;
   cur->fid = pQueryHandle->pFileGroup->fileId;
 
-- 
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