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Posted to issues@spark.apache.org by "Michael Styles (JIRA)" <ji...@apache.org> on 2017/06/27 20:28:00 UTC
[jira] [Resolved] (SPARK-21218) Convert IN predicate to equivalent
Parquet filter
[ https://issues.apache.org/jira/browse/SPARK-21218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Styles resolved SPARK-21218.
------------------------------------
Resolution: Duplicate
> Convert IN predicate to equivalent Parquet filter
> -------------------------------------------------
>
> Key: SPARK-21218
> URL: https://issues.apache.org/jira/browse/SPARK-21218
> Project: Spark
> Issue Type: Improvement
> Components: Optimizer
> Affects Versions: 2.1.1
> Reporter: Michael Styles
> Attachments: IN Predicate.png, OR Predicate.png
>
>
> Convert IN predicate to equivalent expression involving equality conditions to allow the filter to be pushed down to Parquet.
> For instance,
> C1 IN (10, 20) is rewritten as (C1 = 10) OR (C1 = 20)
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