Struct MultiRunCursor 

pub struct MultiRunCursor { /* private fields */ }

A forward cursor over multiple sorted runs that yields the projected columns of surviving rows via a k-way merge by RowId (Phase 16.1).

Cross-run MVCC resolution (newest visible version per RowId) and predicate survivor resolution are settled at construction using only the cheap system columns; next_batch then lazily decodes the projected data columns of just the pages that own survivors, each page at most once. This generalizes the single-run NativePageCursor to arbitrary run counts so multi-run tables stream instead of fully materializing.

Trait Implementations

impl Cursor for MultiRunCursor

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

The projected column types, in output order.

fn remaining_rows(&self) -> usize

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

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.