Struct RowGroupIndex 

pub struct RowGroupIndex { /* private fields */ }

Row index for a single column in a stripe

Only primitive columns have row indexes. Compound types (struct/list/map) delegate to their child columns.

Implementations

impl RowGroupIndex

pub fn new( entries: Vec<RowGroupEntry>, rows_per_group: usize, column_index: usize, ) -> Self

pub fn num_row_groups(&self) -> usize

Get the number of row groups in this index

pub fn rows_per_group(&self) -> usize

Get the number of rows per row group

pub fn column_index(&self) -> usize

Get the column index this row index belongs to

pub fn row_group_stats(&self, row_group_idx: usize) -> Option<&ColumnStatistics>

Get statistics for a specific row group

pub fn entries(&self) -> impl Iterator<Item = &RowGroupEntry>

Get an iterator over row group entries

pub fn entry(&self, row_group_idx: usize) -> Option<&RowGroupEntry>

Get a specific row group entry

Trait Implementations

impl Clone for RowGroupIndex

fn clone(&self) -> RowGroupIndex

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RowGroupIndex

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.