From 9c0215f7da3cafcb8f2fce61146bc1c0a028ed82 Mon Sep 17 00:00:00 2001
From: Handora <qcdsr970209@gmail.com>
Date: Mon, 12 Jun 2023 06:42:21 +0000
Subject: [PATCH] [BUG] row scn is not mainted for sstable uncommited data

---
 src/storage/blocksstable/ob_micro_block_row_scanner.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/storage/blocksstable/ob_micro_block_row_scanner.cpp b/src/storage/blocksstable/ob_micro_block_row_scanner.cpp
index f3f480157f..70ab7b9556 100644
--- a/src/storage/blocksstable/ob_micro_block_row_scanner.cpp
+++ b/src/storage/blocksstable/ob_micro_block_row_scanner.cpp
@@ -1172,6 +1172,9 @@ int ObMultiVersionMicroBlockRowScanner::inner_inner_get_next_row(
           if (!row->mvcc_row_flag_.is_uncommitted_row() || is_determined_state) {
             row->snapshot_version_ = 0;
             row->trans_id_.reset();
+            if (param_->need_scn_) {
+              row->storage_datums_[read_info_->get_schema_rowkey_count()].set_int(-trans_version);
+            }
           } else { // uncommitted row
             row->snapshot_version_ = INT64_MAX;
           }