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

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

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);