[iotdb] branch rel/0.12 updated: Fix 0.12 order by time desc bug (#3654)

[qiaojialin]

This is an automated email from the ASF dual-hosted git repository.

qiaojialin pushed a commit to branch rel/0.12
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/rel/0.12 by this push:
     new 56df02a  Fix 0.12 order by time desc bug (#3654)
56df02a is described below

commit 56df02ab25c99c102adcb94a315a0d7431b02472
Author: Xiangwei Wei <34242296+alima...@users.noreply.github.com>
AuthorDate: Fri Jul 30 21:41:14 2021 +0800

    Fix 0.12 order by time desc bug (#3654)
---
 .../main/java/org/apache/iotdb/db/query/reader/series/SeriesReader.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git 
a/server/src/main/java/org/apache/iotdb/db/query/reader/series/SeriesReader.java
 
b/server/src/main/java/org/apache/iotdb/db/query/reader/series/SeriesReader.java
index 7ded941..8225c6f 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/query/reader/series/SeriesReader.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/query/reader/series/SeriesReader.java
@@ -700,6 +700,7 @@ public class SeriesReader {
                 || (!orderUtils.getAscending()
                     && timeValuePair.getTimestamp()
                         < firstPageReader.getStatistics().getStartTime())) {
+              cachedBatchData.flip();
               hasCachedNextOverlappedPage = cachedBatchData.hasCurrent();
               return hasCachedNextOverlappedPage;
             } else {
@@ -725,6 +726,7 @@ public class SeriesReader {
                 || (!orderUtils.getAscending()
                     && timeValuePair.getTimestamp()
                         < 
seqPageReaders.get(0).getStatistics().getStartTime())) {
+              cachedBatchData.flip();
               hasCachedNextOverlappedPage = cachedBatchData.hasCurrent();
               return hasCachedNextOverlappedPage;
             } else {