String storeSink() {
        return storeSink;
    }
@Test
    public void testStoreSinkIsQuoted() {
        Queries queries = new Queries(mapping, idColumn, columnMetadata);
        String result = queries.storeSink();
        assertEquals("SINK INTO \"mymapping\" (\"id\", \"name\", \"address\") VALUES (?, ?, ?)", result);
    }