From 99e758f2f1ebdabc5377ca6dc2b258a6ddbc6bac Mon Sep 17 00:00:00 2001
From: haojun Liao <hjxilinx@users.noreply.github.com>
Date: Tue, 31 Dec 2019 12:09:47 +0800
Subject: [PATCH] Update vnodeQueryImpl.c

---
 src/system/detail/src/vnodeQueryImpl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/system/detail/src/vnodeQueryImpl.c b/src/system/detail/src/vnodeQueryImpl.c
index e4e2add572..e3b1f60d49 100644
--- a/src/system/detail/src/vnodeQueryImpl.c
+++ b/src/system/detail/src/vnodeQueryImpl.c
@@ -1152,7 +1152,7 @@ static bool getQualifiedDataBlock(SMeterObj *pMeterObj, SQueryRuntimeEnv *pRunti
 
   // load first data block into memory failed, caused by disk block error
   bool blockLoaded = false;
-  while (blkIdx < pQuery->numOfBlocks) {
+  while (blkIdx < pQuery->numOfBlocks && blkIdx >= 0) {
     pQuery->slot = blkIdx;
     if (loadDataBlockIntoMem(&pQuery->pBlock[pQuery->slot], &pQuery->pFields[pQuery->slot], pRuntimeEnv, fid, true,
                              true) == 0) {
-- 
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