@Override
    public Optional<String> buildEstimatedCountSQL(final String qualifiedTableName) {
        return Optional.of(String.format("SELECT TABLE_ROWS FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = ? AND TABLE_NAME = '%s'", qualifiedTableName));
    }
@Test
    void assertBuilderEstimateCountSQLWithoutKeyword() {
        Optional<String> actual = sqlBuilder.buildEstimatedCountSQL("t_order");
        assertTrue(actual.isPresent());
        assertThat(actual.get(), is("SELECT TABLE_ROWS FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = ? AND TABLE_NAME = 't_order'"));
    }