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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/04/23 01:17:13 UTC

[jira] [Assigned] (SPARK-14863) Cache TreeNode's hashCode

     [ https://issues.apache.org/jira/browse/SPARK-14863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-14863:
------------------------------------

    Assignee: Apache Spark  (was: Josh Rosen)

> Cache TreeNode's hashCode
> -------------------------
>
>                 Key: SPARK-14863
>                 URL: https://issues.apache.org/jira/browse/SPARK-14863
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Josh Rosen
>            Assignee: Apache Spark
>
> Caching TreeNode's hashCode can lead to orders-of-magnitude performance improvement in certain optimizer rules when operating on data with huge/complex schemas.



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