Trait ArrowHashTable 

pub trait ArrowHashTable {
    // Required methods
    fn set_batch(&mut self, ids: ArrayRef);
    fn len(&self) -> usize;
    unsafe fn update_heap_idx(&mut self, mapper: &[(usize, usize)]);
    unsafe fn heap_idx_at(&self, map_idx: usize) -> usize;
    unsafe fn take_all(&mut self, indexes: Vec<usize>) -> ArrayRef;
    unsafe fn find_or_insert(
        &mut self,
        row_idx: usize,
        replace_idx: usize,
        map: &mut Vec<(usize, usize)>,
    ) -> (usize, bool);
}

An interface to hide the generic type signature of TopKHashTable behind arrow arrays

Required Methods

fn set_batch(&mut self, ids: ArrayRef)

fn len(&self) -> usize

unsafe fn update_heap_idx(&mut self, mapper: &[(usize, usize)])

unsafe fn heap_idx_at(&self, map_idx: usize) -> usize

unsafe fn take_all(&mut self, indexes: Vec<usize>) -> ArrayRef

unsafe fn find_or_insert( &mut self, row_idx: usize, replace_idx: usize, map: &mut Vec<(usize, usize)>, ) -> (usize, bool)

Implementors

impl ArrowHashTable for StringHashTable

impl<VAL: ArrowPrimitiveType> ArrowHashTable for PrimitiveHashTable<VAL>

where Option<<VAL as ArrowPrimitiveType>::Native>: Comparable + HashValue,