Method Clean

cpp/src/arrow/compute/row/row_internal.cc:225–233

}

void RowTableImpl::Clean() {
  num_rows_ = 0;
  num_rows_for_has_any_nulls_ = 0;
  has_any_nulls_ = false;

  if (!metadata_.is_fixed_length) {
    reinterpret_cast<offset_type*>(offsets_->mutable_data())[0] = 0;
  }
}

int64_t RowTableImpl::size_null_masks(int64_t num_rows) const {
  return num_rows * metadata_.null_masks_bytes_per_row + kPaddingForVectors;