Struct NativePageCursor 

pub struct NativePageCursor { /* private fields */ }

A forward cursor over a single sorted run that yields the projected columns of surviving rows, page by page. Built by crate::engine::Table.

All MVCC visibility and predicate resolution is settled at construction (the PagePlans); Self::next_batch is pure lazy column decode + gather.

Implementations

impl NativePageCursor

pub fn projection_types(&self) -> Vec<TypeId>

The projected column types, in output order.

pub fn remaining_rows(&self) -> usize

Total surviving rows still to be yielded across all remaining plans plus the overlay (the scan’s exact output row count, without decoding pages).

pub fn next_batch(&mut self) -> Result<Option<Vec<NativeColumn>>>

Decode the next surviving page’s projected columns, gathered to that page’s survivor positions. Returns None when no pages remain. The overlay batch (if any) is yielded as the final batch.

Trait Implementations

impl Cursor for NativePageCursor

fn next_batch(&mut self) -> Result<Option<Vec<NativeColumn>>>

Decode the next batch of survivor rows as projected native columns, in ascending RowId order. None when the stream is exhausted.

fn remaining_rows(&self) -> usize

Exact count of surviving rows still to be yielded (without decoding).

fn projection_types(&self) -> Vec<TypeId>

The projected column types, in output order.