Function CastableToDecimal

cpp/src/arrow/compute/kernels/codegen_internal.cc:396–398

}

bool CastableToDecimal(const DataType& type) {
  return is_numeric(type.id()) || is_decimal(type.id());
}

Status CastBinaryDecimalArgs(DecimalPromotion promotion, std::vector<TypeHolder>* types) {
  const DataType& left_type = *(*types)[0];