Method scan_memtable_rows

nodedb-columnar/src/mutation/engine.rs:158–170

Iterate non-deleted rows in the memtable as `Vec `. Skips rows marked as deleted in the memtable's virtual segment delete bitmap. For rows in flushed segments, use `SegmentReader`.

(&self)

    /// Skips rows marked as deleted in the memtable's virtual segment
    /// delete bitmap. For rows in flushed segments, use `SegmentReader`.
    pub fn scan_memtable_rows(&self) -> impl Iterator<Item = Vec<Value>> + '_ {
        let deletes = self.delete_bitmaps.get(&self.memtable_segment_id);
        self.memtable
            .iter_rows()
            .enumerate()
            .filter_map(move |(row_idx, row)| {
                if deletes.is_some_and(|bm| bm.is_deleted(row_idx as u32)) {
                    None
                } else {
                    Some(row)
                }
            })
    }

    /// Iterate non-deleted rows paired with their surrogate identity.
    ///