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new c3e6a841c1 [feature-wip](unique-key-merge-on-write) fix that sort
segments by segment id in descending order (#11811)
c3e6a841c1 is described below
commit c3e6a841c15ea25d67319bba9226e4018f07ba5c
Author: Xin Liao <liaoxin...@126.com>
AuthorDate: Wed Aug 17 10:54:30 2022 +0800
[feature-wip](unique-key-merge-on-write) fix that sort segments by segment
id in descending order (#11811)
---
be/src/olap/tablet.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/be/src/olap/tablet.cpp b/be/src/olap/tablet.cpp
index b7029278b6..9be70259a2 100644
--- a/be/src/olap/tablet.cpp
+++ b/be/src/olap/tablet.cpp
@@ -1887,6 +1887,9 @@ Status Tablet::lookup_row_key(const Slice& encoded_key,
const RowsetIdUnorderedS
// to search the key in the rowset with larger version.
std::sort(selected_rs.begin(), selected_rs.end(),
[](std::pair<RowsetSharedPtr, int32_t>& a,
std::pair<RowsetSharedPtr, int32_t>& b) {
+ if (a.first->end_version() == b.first->end_version()) {
+ return a.second > b.second;
+ }
return a.first->end_version() > b.first->end_version();
});
RowLocation loc;
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