Dandandan commented on issue #4482:
URL:
https://github.com/apache/arrow-datafusion/issues/4482#issuecomment-1342165537
> @Dandandan may I try this?
>
> test to reproduce
>
> ```
> #[test]
> fn bench_is_distinct_from() {
> let max = 1_000_000_000;
> let l_array: &[Option<i128>] = &(0 .. max).map(|v|
Some(v)).collect::<Vec<Option<i128>>>();
> let r_array: &[Option<i128>] = &(0 .. max).map(|v|
Some(v+1)).collect::<Vec<Option<i128>>>();
> println!("Elapsed: {:.2?}", elapsed);
>
> let left_array = create_decimal_array(l_array, 10, 1);
> let right_array = create_decimal_array(r_array, 1, 1);
>
> use std::time::Instant;
> let now = Instant::now();
> is_distinct_from(&left_array, &right_array);
> let elapsed = now.elapsed();
> println!("Elapsed: {:.2?}", elapsed);
> }
> ```
>
> 1_000_000_000 -> `Elapsed: 174.09s` Cant say for mem usage for now. I'll
update on rewrite results.
Sure, that would be awesome 😎
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