Method unmark_deleted

nodedb-columnar/src/delete_bitmap.rs:127–129

Remove a row from the deleted set (undo a tombstone). Used exclusively by transaction rollback to clear tombstones that were set by a preceding insert's upsert path. Returns true if the row was previously deleted, false if it was already live.

(&mut self, row_idx: u32)

    /// were set by a preceding insert's upsert path. Returns true if the
    /// row was previously deleted, false if it was already live.
    pub fn unmark_deleted(&mut self, row_idx: u32) -> bool {
        self.inner.remove(row_idx)
    }

    /// Merge another bitmap into this one (union). Used during compaction
    /// to combine delete bitmaps from multiple source segments.