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Posted to issues@spark.apache.org by "jiaan.geng (Jira)" <ji...@apache.org> on 2020/11/27 10:51:00 UTC
[jira] [Commented] (SPARK-28646) Allow usage of `count` only for
parameterless aggregate function
[ https://issues.apache.org/jira/browse/SPARK-28646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17239619#comment-17239619 ]
jiaan.geng commented on SPARK-28646:
------------------------------------
I will take a look!
> Allow usage of `count` only for parameterless aggregate function
> ----------------------------------------------------------------
>
> Key: SPARK-28646
> URL: https://issues.apache.org/jira/browse/SPARK-28646
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Dylan Guedes
> Priority: Major
>
> Currently, Spark allows calls to `count` even for non parameterless aggregate function. For example, the following query actually works:
> {code:sql}SELECT count() OVER () FROM tenk1;{code}
> In PgSQL, on the other hand, the following error is thrown:
> {code:sql}ERROR: count(*) must be used to call a parameterless aggregate function{code}
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