表格(输入数据)
+--------+---------+
| col_id | col_val |
+--------+---------+
| axc | col_x |
| bdf | col_f |
| cde | col_x |
| yhc | col_f |
| idx | col_a |
| dft | col_b |
+--------+---------+
转置逻辑。基本上想将col_a或col_b值合并为col_ab的一列。尝试如下。但遇到错误。请帮助
SELECT a.col_id,IF(array_contains(collect_list(a.map_values['col_x']),'1'),'Y','N') AS col_x,
IF(array_contains(collect_list(a.map_values['col_y']),'1'),'Y','N') AS col_y,
IF(array_contains(collect_list(a.map_values['col_a']),'1'),'Y','N') OR IF(array_contains(collect_list(a.map_values['col_b']),'1'),'Y','N') AS col_ab,
IF(array_contains(collect_list(a.map_values['col_f']),'1'),'Y','N') AS col_f
FROM (
SELECT col_id,
col_val,
map(col_val, '1') map_values
FROM transpose) a GROUP BY a.col_id;
输出数据
+--------+-------+-------+-----------+-------+
| col_id | col_x | col_y | col_ab | col_f |
+--------+-------+-------+-----------+-------+
| axc | Y | N | N | N |
| bdf | N | N | N | Y |
| cde | Y | N | N | N |
| dft | N | Y | Y | N |
| idx | N | N | Y | N |
| yhc | N | N | N | Y |
+--------+-------+-------+-----------+-------+
答案 0 :(得分:0)
具有聚合的用例语句:
select col_id,
max( case col_val = 'col_x' then 'Y' alse 'N' end ) as col_x,
max( case col_val = 'col_y' then 'Y' alse 'N' end ) as col_y,
max( case col_val in ( 'col_a', 'col_b') then 'Y' alse 'N' end ) as col_ab,
max( case col_val = 'col_f' then 'Y' alse 'N' end ) as col_f
from your_table
group by col_id;
答案 1 :(得分:0)
@Bean
public static PropertySourcesPlaceholderConfigurer properties() {
var propertySourcesPlaceholderConfigurer = new PropertySourcesPlaceholderConfigurer();
var yamlPropertiesFactoryBean = new YamlPropertiesFactoryBean();
yamlPropertiesFactoryBean.setResources(new ClassPathResource("custom.yaml"));
propertySourcesPlaceholderConfigurer.setProperties(yamlPropertiesFactoryBean.getObject());
return propertySourcesPlaceholderConfigurer;
}