String loadAll(int n) {
        return loadAllQueries.computeIfAbsent(n, loadAllFactory);
    }
@Test
    public void testLoadAllIsQuoted() {
        Queries queries = new Queries(mapping, idColumn, columnMetadata);
        String result = queries.loadAll(2);
        assertEquals("SELECT * FROM \"mymapping\" WHERE \"id\" IN (?, ?)", result);
    }