From 5aff8962a45952cbd54377435cda13647d24714c Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Sat, 15 Aug 2020 14:52:50 +0800
Subject: [PATCH] [td-225] fix bugs in retrieve error.

---
 src/tsdb/src/tsdbRead.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index c89ae0698a..bb3f7ca195 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -1795,14 +1795,17 @@ bool tsdbNextDataBlock(TsdbQueryHandleT* pHandle) {
 
   if (pQueryHandle->checkFiles) {
     bool exists = true;
+
     int32_t code = getDataBlocksInFiles(pQueryHandle, &exists);
     if (code != TSDB_CODE_SUCCESS) {
-      return code;
+      pQueryHandle->activeIndex = 0;
+      pQueryHandle->checkFiles  = false;
+
+      return false;
     }
 
     if (exists) {
-      elapsedTime = taosGetTimestampUs() - stime;
-      pQueryHandle->cost.checkForNextTime += elapsedTime;
+      pQueryHandle->cost.checkForNextTime += (taosGetTimestampUs() - stime);
       return exists;
     }