message: Move the merge threshold to a full row group
diff: @@ -205,7 +205,8 @@ bool LocalStorage::ScanTableStorage(DataTable &table, LocalTableStorage &storage
  }
  void LocalStorage::Flush(DataTable &table, LocalTableStorage &storage) {
  - static constexpr const idx_t MERGE_THRESHOLD = 1; // RowGroup::ROW_GROUP_SIZE;
  + // bulk append threshold: a full row group
  + static constexpr const idx_t MERGE_THRESHOLD = RowGroup::ROW_GROUP_SIZE;
  auto storage_entry = move(table_storage[&table]);
  table_storage[&table].reset();
  