Struct RowGroupRanges 

struct RowGroupRanges {
    row_group: RowGroupContext,
    stages: IntoIter<StagePlan>,
    stage: Option<StageRanges>,
}

The planned ranges of one row group, in decode order.

Each stage is a merge of one cursor per column chunk. A cursor returns the ranges of its column chunk in file order, and their first rows do not decrease. A heap picks the cursor whose next range has the smallest RangeOrder, so the ranges of a stage are ordered by first row without collecting and sorting all of them.

Fields

row_group: RowGroupContext

stages: IntoIter<StagePlan>

Stages not yet started.

stage: Option<StageRanges>

The stage being merged.

Implementations

impl RowGroupRanges

fn next(&mut self) -> Option<PlannedRange>

Trait Implementations

impl Clone for RowGroupRanges

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowGroupRanges

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

Formats the value using the given formatter.