@Override
    public MapperResult listGroupKeyMd5ByPageFetchRows(MapperContext context) {
        String sql = "SELECT t.id,data_id,group_id,tenant_id,app_name,md5,type,gmt_modified,encrypted_data_key FROM "
                + "( SELECT id FROM config_info ORDER BY id LIMIT " + context.getStartRow() + ","
                + context.getPageSize() + " ) g, config_info t WHERE g.id = t.id";
        return new MapperResult(sql, Collections.emptyList());
    }
@Test
    void testListGroupKeyMd5ByPageFetchRows() {
        MapperResult mapperResult = configInfoMapperByMySql.listGroupKeyMd5ByPageFetchRows(context);
        assertEquals(mapperResult.getSql(), "SELECT t.id,data_id,group_id,tenant_id,app_name,md5,type,gmt_modified,encrypted_data_key FROM "
                + "( SELECT id FROM config_info ORDER BY id LIMIT 0,5 ) g, config_info t WHERE g.id = t.id");
        assertArrayEquals(mapperResult.getParamList().toArray(), emptyObjs);
        
    }