[Fix](MoW) Fix dup key when do schema change add new key (#22154)

2023-07-25 14:18:01 +08:00
parent 103c473b96
commit c251a574e8
1 changed files with 6 additions and 0 deletions
--- a/be/src/olap/schema_change.cpp
+++ b/be/src/olap/schema_change.cpp
@ -1274,6 +1274,12 @@ Status SchemaChangeHandler::_parse_request(const SchemaChangeParams& sc_params,
        return Status::OK();
    }

+    if (new_tablet->enable_unique_key_merge_on_write() &&
+        new_tablet->num_key_columns() > base_tablet_schema->num_key_columns()) {
+        *sc_directly = true;
+        return Status::OK();
+    }
+
    if (base_tablet_schema->num_short_key_columns() != new_tablet->num_short_key_columns()) {
        // the number of short_keys changed, can't do linked schema change
        *sc_directly = true;