Function arrow2::compute::arithmetics::decimal::add

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

Available on crate feature compute_arithmetics only.

Adds two decimal PrimitiveArray with the same precision and scale.

Error

Errors if the precision and scale are different.

Panic

This function panics iff the added numbers result in a number larger than the possible number for the precision.

Examples

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

let a = PrimitiveArray::from([Some(1i128), Some(1i128), None, Some(2i128)]).to(DataType::Decimal(5, 2));
let b = PrimitiveArray::from([Some(1i128), Some(2i128), None, Some(2i128)]).to(DataType::Decimal(5, 2));

let result = add(&a, &b);
let expected = PrimitiveArray::from([Some(2i128), Some(3i128), None, Some(4i128)]).to(DataType::Decimal(5, 2));

assert_eq!(result, expected);