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https://issues.apache.org/jira/browse/SPARK-17616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15511386#comment-15511386
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Apache Spark commented on SPARK-17616:
--------------------------------------

User 'hvanhovell' has created a pull request for this issue:
https://github.com/apache/spark/pull/15187

> Getting "java.lang.RuntimeException: Distinct columns cannot exist in 
> Aggregate "
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-17616
>                 URL: https://issues.apache.org/jira/browse/SPARK-17616
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Egor Pahomov
>            Priority: Minor
>
> I execute:
> {code}
> select platform, 
>         collect_set(user_auth) as paid_types,
>         count(distinct sessionid) as sessions
>     from non_hss.session
>     where
>         event = 'stop' and platform != 'testplatform' and
>         not (month = MONTH(current_date()) AND year = YEAR(current_date()) 
> and day = day(current_date())) and
>         (
>             (month >= MONTH(add_months(CURRENT_DATE(), -5)) AND year = 
> YEAR(add_months(CURRENT_DATE(), -5)))
>             OR
>             (month <= MONTH(add_months(CURRENT_DATE(), -5)) AND year > 
> YEAR(add_months(CURRENT_DATE(), -5)))
>         )
>     group by platform
> {code}
> I get:
> {code}
> java.lang.RuntimeException: Distinct columns cannot exist in Aggregate 
> operator containing aggregate functions which don't support partial 
> aggregation.
> {code}
> IT WORKED IN 1.6.2. I've read error 5 times, and read code once. I still 
> don't understand what I do incorrectly.



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