branch-3.0: [enhancement](cloud-schema-change) Rowset [0-1] should no…

…t engage in delete bitmap calculation during MOW SC #44171 (#44258) Cherry-picked from #44171 Co-authored-by: Siyang Tang <[email protected]>
apache · Nov 26, 2024 · 6390254 · 6390254
1 parent f6ed2e5
commit 6390254
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/be/src/cloud/cloud_schema_change_job.cpp b/be/src/cloud/cloud_schema_change_job.cpp
@@ -363,7 +363,8 @@ Status CloudSchemaChangeJob::_convert_historical_rowsets(const SchemaChangeParam
         // If there are historical versions of rowsets, we need to recalculate their delete
         // bitmaps, otherwise we will miss the delete bitmaps of incremental rowsets
         int64_t start_calc_delete_bitmap_version =
-                already_exist_any_version ? 0 : sc_job->alter_version() + 1;
+                // [0-1] is a placeholder rowset, start from 2.
+                already_exist_any_version ? 2 : sc_job->alter_version() + 1;
         RETURN_IF_ERROR(_process_delete_bitmap(sc_job->alter_version(),
                                                start_calc_delete_bitmap_version, initiator));
         sc_job->set_delete_bitmap_lock_initiator(initiator);