Files
doris/regression-test
seawinde d50c8b6d3a [Improvement](nereids) Query rewrite by mv support bitmap_union and bitmap_union_count roll up (#29418)
Query rewrite by mv support bitmap_union and bitmap_union_count roll up, aggregate functions which supports roll up is listed as following:

| 查询中函数            | 物化视图中函数      | 函数上卷后              |
|------------------|--------------|--------------------|
| max              | max          | max                |
| min              | min          | min                |
| sum              | sum          | sum                |
| count            | count        | sum                |
| count(distinct ) | bitmap_union | bitmap_union_count |
| bitmap_union | bitmap_union | bitmap_union|
| bitmap_union_count | bitmap_union | bitmap_union_count |

this depends on  https://github.com/apache/doris/pull/29256
2024-01-12 11:44:21 +08:00
..

新加case注意事项

  1. 变量名前要写 def,否则是全局变量,并行跑的 case 的时候可能被其他 case 影响。

    Problematic code:

    ret = ***
    

    Correct code:

    def ret = ***
    
  2. 尽量不要在 case 中 global 的设置 session variable,或者修改集群配置,可能会影响其他 case。

    Problematic code:

    sql """set global enable_pipeline_x_engine=true;"""
    

    Correct code:

    sql """set enable_pipeline_x_engine=true;"""
    
  3. 如果必须要设置 global,或者要改集群配置,可以指定 case 以 nonConcurrent 的方式运行。

    示例

  4. case 中涉及时间相关的,最好固定时间,不要用类似 now() 函数这种动态值,避免过一段时间后 case 就跑不过了。

    Problematic code:

    sql """select count(*) from table where created < now();"""
    

    Correct code:

    sql """select count(*) from table where created < '2023-11-13';"""