Method ReadData

cpp/src/parquet/size_statistics_test.cc:219–231

  }

  void ReadData() {
    auto reader =
        ParquetFileReader::Open(std::make_shared<::arrow::io::BufferReader>(buffer_));
    auto metadata = reader->metadata();
    for (int i = 0; i < metadata->num_row_groups(); ++i) {
      int64_t num_rows = metadata->RowGroup(i)->num_rows();
      auto row_group_reader = reader->RowGroup(i);
      for (int j = 0; j < metadata->num_columns(); ++j) {
        auto column_reader = row_group_reader->RecordReader(j);
        ASSERT_EQ(column_reader->ReadRecords(num_rows + 1), num_rows);
      }
    }
  }

  void Reset() { buffer_.reset(); }