Function arrow2::compute::merge_sort::build_comparator_impl

pub fn build_comparator_impl<'a>(
    pairs: &'a [(&'a [&'a dyn Array], &SortOptions)],
    build_compare_fn: &dyn Fn(&dyn Array, &dyn Array) -> Result<DynComparator>
) -> Result<Box<dyn Fn(usize, usize, usize, usize) -> Ordering + 'a>>

Available on crate feature compute_merge_sort only.

returns a comparison function between any two arrays of each pair of arrays, according to SortOptions. Implementing custom build_compare_fn for unsupportd data types.