Struct arrow::compute::kernels::sort::LexicographicalComparator

pub struct LexicographicalComparator { /* 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.