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Posted to issues@spark.apache.org by "jiaan.geng (Jira)" <ji...@apache.org> on 2019/12/31 08:23:00 UTC
[jira] [Updated] (SPARK-30395) When one or more DISTINCT aggregate
expressions operate on the same field, the DISTINCT aggregate expression
allows the use of the FILTER clause
[ https://issues.apache.org/jira/browse/SPARK-30395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
jiaan.geng updated SPARK-30395:
-------------------------------
Description:
This ticket is related to https://issues.apache.org/jira/browse/SPARK-27986
This ticket will support:
When one or more DISTINCT aggregate expressions operate on the same field, the DISTINCT aggregate expression allows the use of the FILTER clause
such as:
{code:java}
select sum(distinct id) filter (where sex = 'man') from student;
select class_id, sum(distinct id) filter (where sex = 'man') from student group by class_id;
select count(id) filter (where class_id = 1), sum(distinct id) filter (where sex = 'man') from student;
select class_id, count(id) filter (where class_id = 1), sum(distinct id) filter (where sex = 'man') from student group by class_id;
select sum(distinct id), sum(distinct id) filter (where sex = 'man') from student;
select class_id, sum(distinct id), sum(distinct id) filter (where sex = 'man') from student group by class_id;
select class_id, count(id), count(id) filter (where class_id = 1), sum(distinct id), sum(distinct id) filter (where sex = 'man') from student group by class_id;
{code}
but not support:
was:
This ticket is related to https://issues.apache.org/jira/browse/SPARK-27986
This ticket will support:
When one or more DISTINCT aggregate expressions operate on the same field, the DISTINCT aggregate expression allows the use of the FILTER clause
> When one or more DISTINCT aggregate expressions operate on the same field, the DISTINCT aggregate expression allows the use of the FILTER clause
> ------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-30395
> URL: https://issues.apache.org/jira/browse/SPARK-30395
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: jiaan.geng
> Priority: Major
>
> This ticket is related to https://issues.apache.org/jira/browse/SPARK-27986
> This ticket will support:
> When one or more DISTINCT aggregate expressions operate on the same field, the DISTINCT aggregate expression allows the use of the FILTER clause
> such as:
>
> {code:java}
> select sum(distinct id) filter (where sex = 'man') from student;
> select class_id, sum(distinct id) filter (where sex = 'man') from student group by class_id;
> select count(id) filter (where class_id = 1), sum(distinct id) filter (where sex = 'man') from student;
> select class_id, count(id) filter (where class_id = 1), sum(distinct id) filter (where sex = 'man') from student group by class_id;
> select sum(distinct id), sum(distinct id) filter (where sex = 'man') from student;
> select class_id, sum(distinct id), sum(distinct id) filter (where sex = 'man') from student group by class_id;
> select class_id, count(id), count(id) filter (where class_id = 1), sum(distinct id), sum(distinct id) filter (where sex = 'man') from student group by class_id;
> {code}
>
> but not support:
>
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