Function arrow2::compute::arithmetics::decimal::saturating_add

pub fn saturating_add(
    lhs: &PrimitiveArray<i128>,
    rhs: &PrimitiveArray<i128>
) -> PrimitiveArray<i128>

Available on crate feature compute_arithmetics only.

Saturated addition of two decimal primitive arrays with the same precision and scale. If the precision and scale is different, then an InvalidArgumentError is returned. If the result from the sum is larger than the possible number with the selected precision then the resulted number in the arrow array is the maximum number for the selected precision.

Examples

use arrow2::compute::arithmetics::decimal::saturating_add;
use arrow2::array::PrimitiveArray;
use arrow2::datatypes::DataType;

let a = PrimitiveArray::from([Some(99000i128), Some(11100i128), None, Some(22200i128)]).to(DataType::Decimal(5, 2));
let b = PrimitiveArray::from([Some(01000i128), Some(22200i128), None, Some(11100i128)]).to(DataType::Decimal(5, 2));

let result = saturating_add(&a, &b);
let expected = PrimitiveArray::from([Some(99999i128), Some(33300i128), None, Some(33300i128)]).to(DataType::Decimal(5, 2));

assert_eq!(result, expected);