[FEAT MERGE] Big Txn Execution Optimization

src/storage/ob_i_store.cpp

@@ -134,6 +134,7 @@ void ObStoreRowLockState::reset()
   trans_version_ = SCN::min_scn();
   lock_trans_id_.reset();
   lock_data_sequence_ = 0;
+  lock_dml_flag_ = blocksstable::ObDmlFlag::DF_NOT_EXIST;
   is_delayed_cleanout_ = false;
   mvcc_row_ = NULL;
 }