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Posted to issues@spark.apache.org by "jiaan.geng (Jira)" <ji...@apache.org> on 2020/08/05 07:52:00 UTC
[jira] [Commented] (SPARK-32540) Eliminate distinct that with
filter clause
[ https://issues.apache.org/jira/browse/SPARK-32540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17171319#comment-17171319 ]
jiaan.geng commented on SPARK-32540:
------------------------------------
I'm working on.
> Eliminate distinct that with filter clause
> ------------------------------------------
>
> Key: SPARK-32540
> URL: https://issues.apache.org/jira/browse/SPARK-32540
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: jiaan.geng
> Priority: Major
>
> SQL like:
> {code:java}
> SELECT COUNT(DISTINCT 1) FILTER (WHERE true) FROM testData;
> {code}
> Could converted to
> {code:java}
> SELECT COUNT(DISTINCT 1) FROM testData;
> {code}
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