@Override
    public Optional<String> buildCRC32SQL(final String qualifiedTableName, final String columnName) {
        return Optional.of(String.format("SELECT BIT_XOR(CAST(CRC32(%s) AS UNSIGNED)) AS checksum, COUNT(1) AS cnt FROM %s", columnName, qualifiedTableName));
    }
@Test
    void assertBuildSumCrc32SQL() {
        Optional<String> actual = sqlBuilder.buildCRC32SQL("t2", "id");
        assertTrue(actual.isPresent());
        assertThat(actual.get(), is("SELECT BIT_XOR(CAST(CRC32(id) AS UNSIGNED)) AS checksum, COUNT(1) AS cnt FROM t2"));
    }