Function GenerateTestArray

cpp/src/arrow/type_benchmark.cc:437–449

}

static std::shared_ptr<Array> GenerateTestArray(int num_columns) {
  constexpr int64_t kLength = 100;

  auto rand = random::RandomArrayGenerator(0xbeef);
  auto schm = GenerateTestSchema(num_columns);

  ArrayVector columns(num_columns);
  for (auto& column : columns) {
    column = rand.Int64(kLength, 0, std::numeric_limits<int64_t>::max());
  }

  return *StructArray::Make(columns, schm->fields());
}

static std::shared_ptr<RecordBatch> ToBatch(const std::shared_ptr<Array>& array) {
  return *RecordBatch::FromStructArray(array);