digraph G {
    A -> B [label="SELECT pg_enable_data_checksums()"];
    B -> C;
    D -> A;
    C -> D [label="SELECT pg_disable_data_checksums()"];
    E -> A [label=" --no-data-checksums"];
    E -> C [label=" --data-checksums"];

    A [label="off"];
    B [label="inprogress-on"];
    C [label="on"];
    D [label="inprogress-off"];
    E [label="initdb"];
}
