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https://issues.apache.org/jira/browse/SPARK-13739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li updated SPARK-13739:
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Description:
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
was:
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 attributes. (i.e., none of them
is an expression)
- Predicate must be deterministic
> 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
>
> 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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