From e978233e8439ac8c5e83353dea0319efed5081e8 Mon Sep 17 00:00:00 2001
From: JiahuaChen <garfieldjia@qq.com>
Date: Fri, 14 Jul 2023 04:12:16 +0000
Subject: [PATCH] Fix flashback query old read snapshot

---
 src/sql/das/ob_das_scan_op.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sql/das/ob_das_scan_op.cpp b/src/sql/das/ob_das_scan_op.cpp
index e06f61f21..a5dd9ac70 100644
--- a/src/sql/das/ob_das_scan_op.cpp
+++ b/src/sql/das/ob_das_scan_op.cpp
@@ -316,7 +316,7 @@ int ObDASScanOp::open_op()
     LOG_WARN("init scan param failed", K(ret));
   } else if (OB_FAIL(tsc_service.table_scan(scan_param_, result_))) {
     if (OB_SNAPSHOT_DISCARDED == ret && scan_param_.fb_snapshot_.is_valid()) {
-      ret = OB_INVALID_QUERY_TIMESTAMP;
+      ret = OB_TABLE_DEFINITION_CHANGED;
     } else if (OB_TRY_LOCK_ROW_CONFLICT != ret) {
       LOG_WARN("fail to scan table", K(scan_param_), K(ret));
     }