       //flags["--heap"] = "SZ MIN       Memory allocator uses SZ bytes & min allocation MIN";
        flags["--incrvacuum"] = "Enable incremenatal vacuum mode";
        //flags["--journal"] = "M         Set the journal_mode to M";
        //flags["--key"] = "KEY           Set the encryption key to KEY";
        //flags["--lookaside"] = "N SZ    Configure lookaside for N slots of SZ bytes each";
        flags["--memdb"] = "Use an in-memory database";
        //flags["--mmap"] = "SZ           MMAP the first 