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Posted to issues@spark.apache.org by "Sameer Agarwal (JIRA)" <ji...@apache.org> on 2016/03/04 05:55:40 UTC
[jira] [Updated] (SPARK-13668) Reorder filter/join predicates to
short-circuit isNotNull checks
[ https://issues.apache.org/jira/browse/SPARK-13668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sameer Agarwal updated SPARK-13668:
-----------------------------------
Description:
If a filter predicate or a join condition consists of `IsNotNull` checks, we should reorder these checks such that these non-nullability checks are evaluated before the rest of the predicates.
For e.g., if a filter predicate is of the form `a > 5 && isNotNull(b)`, we should rewrite this as `isNotNull(b) && a > 5` during physical plan generation.
cc [~nongli] [~yhuai]
was:
If a filter predicate or a join condition consists of `IsNotNull` checks, we should reorder these checks such that these non-nullability checks are evaluated before the rest of the predicates.
For e.g., if a filter predicate is of the form `a > 5 && isNotNull(b)`, we should rewrite this as `isNotNull(b) && a` during physical plan generation.
cc [~nongli] [~yhuai]
> Reorder filter/join predicates to short-circuit isNotNull checks
> ----------------------------------------------------------------
>
> Key: SPARK-13668
> URL: https://issues.apache.org/jira/browse/SPARK-13668
> Project: Spark
> Issue Type: Improvement
> Reporter: Sameer Agarwal
>
> If a filter predicate or a join condition consists of `IsNotNull` checks, we should reorder these checks such that these non-nullability checks are evaluated before the rest of the predicates.
> For e.g., if a filter predicate is of the form `a > 5 && isNotNull(b)`, we should rewrite this as `isNotNull(b) && a > 5` during physical plan generation.
> cc [~nongli] [~yhuai]
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