Function merge_multiple_segments

nodedb-columnar/src/compaction/tests.rs:110–135

()

#[test]
fn merge_multiple_segments() {
    let seg1 = write_segment(50);
    let seg2 = write_segment(30);

    let mut del1 = DeleteBitmap::new();
    del1.mark_deleted_batch(&[0, 1, 2]); // Delete 3 from seg1.

    let del2 = DeleteBitmap::new(); // No deletes from seg2.

    let result = compact_segments(
        &[(&seg1, &del1), (&seg2, &del2)],
        &test_schema(),
        0,
        None,
        None,
    )
    .expect("merge");

    assert_eq!(result.live_rows, 77); // 50-3 + 30 = 77.
    assert_eq!(result.removed_rows, 3);
    assert!(result.segment.is_some());

    let new_seg = result.segment.as_ref().expect("segment");
    let reader = SegmentReader::open(new_seg).expect("open");
    assert_eq!(reader.row_count(), 77);
}

#[test]
fn compact_preserves_string_data() {