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https://issues.apache.org/jira/browse/SPARK-18824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liang-Chi Hsieh closed SPARK-18824.
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Resolution: Won't Fix
> Add optimizer rule to reorder expensive Filter predicates like ScalaUDF
> -----------------------------------------------------------------------
>
> Key: SPARK-18824
> URL: https://issues.apache.org/jira/browse/SPARK-18824
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Liang-Chi Hsieh
>
> During evaluation of predicates in Filter, we can reorder the expressions in
> order to evaluate the more expensive expressions like ScalaUDF later. So if
> other expressions are evaluated to false, we can avoid evaluation of these
> UDFs.
> We can add an optimizer rule to do this optimization.
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