Function BuildReader

cpp/src/parquet/column_io_benchmark.cc:160–168

#endif

std::shared_ptr<Int64Reader> BuildReader(std::shared_ptr<Buffer>& buffer,
                                         int64_t num_values, Compression::type codec,
                                         ColumnDescriptor* schema) {
  auto source = std::make_shared<::arrow::io::BufferReader>(buffer);
  std::unique_ptr<PageReader> page_reader =
      PageReader::Open(source, num_values, codec, ReaderProperties(), *schema);
  return std::static_pointer_cast<Int64Reader>(
      ColumnReader::Make(schema, std::move(page_reader)));
}

static void BM_ReadInt64Column(::benchmark::State& state, Repetition::type repetition,
                               Compression::type codec, Encoding::type encoding) {