Function scan_block_level_skip

nodedb/src/engine/timeseries/columnar_bridge.rs:429–446

()

    #[test]
    fn scan_block_level_skip() {
        // Create a large segment with multiple blocks (>1024 rows).
        let segment = write_test_segment(3000, 0);

        // Query only the last block: ts in [2500, 2999].
        let result = scan_shared_segment(&segment, 0, 1, 2500, 2999).expect("scan");

        // Block 0 [0..1023] and block 1 [1024..2047] should be skipped.
        // Block 2 [2048..2999] should be read.
        // Skipped blocks produce null-filled rows (valid=false).
        let valid_count = result.ts_valid.iter().filter(|&&v| v).count();
        // Block 2 has 952 rows (3000-2048), all valid.
        assert_eq!(valid_count, 952);

        // Use filtered scan to get only the matching rows.
        let (ts, _) = scan_shared_segment_filtered(&segment, 0, 1, 2500, 2999).expect("filtered");
        assert_eq!(ts.len(), 500); // 2500..=2999 = 500 rows.
    }

    #[test]
    fn read_arbitrary_column() {