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Posted to issues@spark.apache.org by "Herman van Hovell (JIRA)" <ji...@apache.org> on 2016/04/25 22:34:12 UTC
[jira] [Resolved] (SPARK-13739) Predicate Push Down Through Window
Operator
[ https://issues.apache.org/jira/browse/SPARK-13739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Herman van Hovell resolved SPARK-13739.
---------------------------------------
Resolution: Fixed
Assignee: Xiao Li
Target Version/s: 2.0.0
> Predicate Push Down Through Window Operator
> -------------------------------------------
>
> Key: SPARK-13739
> URL: https://issues.apache.org/jira/browse/SPARK-13739
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Xiao Li
> Assignee: Xiao Li
>
> Push down the predicate through the Window operator.
> In this JIRA, predicates are pushed through Window if and only if the following conditions are satisfied:
> - Predicate involves one and only one column that is part of window partitioning key
> - Window partitioning key is just a sequence of attributeReferences. (i.e., none of them is an expression)
> - Predicate must be deterministic
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