Struct arrow::compute::LexicographicalComparator

pub struct LexicographicalComparator<'a> { /* private fields */ }

A lexicographical comparator that wraps given array data (columns) and can lexicographically compare data at given two indices. The lifetime is the same at the data wrapped.

Implementations

impl LexicographicalComparator<'_>

pub fn compare(&self, a_idx: usize, b_idx: usize) -> Ordering

lexicographically compare values at the wrapped columns with given indices.

pub fn try_new(
    columns: &[SortColumn]
) -> Result<LexicographicalComparator<'_>, ArrowError>

Create a new lex comparator that will wrap the given sort columns and give comparison results with two indices.