message: Also don't flush for in-memory systems
diff: @@ -162,7 +162,7 @@ void LocalStorage::Append(LocalAppendState &state, DataChunk &chunk) {
  }
  void LocalTableStorage::CheckFlush(RowGroup *row_group) {
  - if (table.info->IsTemporary()) {
  + if (table.info->IsTemporary() || table.db.GetStorageManager().InMemory()) {
  return;
  }
  if (row_group == prev_row_group) {
  