Function MakeArrowDecimal

cpp/src/parquet/arrow/schema_internal.cc:42–52

namespace {

Result<std::shared_ptr<ArrowType>> MakeArrowDecimal(const LogicalType& logical_type,
                                                    bool smallest_decimal_enabled) {
  const auto& decimal = checked_cast<const DecimalLogicalType&>(logical_type);
  if (smallest_decimal_enabled) {
    return ::arrow::smallest_decimal(decimal.precision(), decimal.scale());
  }
  if (decimal.precision() <= ::arrow::Decimal128Type::kMaxPrecision) {
    return ::arrow::Decimal128Type::Make(decimal.precision(), decimal.scale());
  }
  return ::arrow::Decimal256Type::Make(decimal.precision(), decimal.scale());
}

Result<std::shared_ptr<ArrowType>> MakeArrowInt(const LogicalType& logical_type) {
  const auto& integer = checked_cast<const IntLogicalType&>(logical_type);