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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-22263) Refactor deterministic as lazy value
Date Thu, 12 Oct 2017 07:43:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-22263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16201568#comment-16201568
] 

Apache Spark commented on SPARK-22263:
--------------------------------------

User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/19478

> Refactor deterministic as lazy value
> ------------------------------------
>
>                 Key: SPARK-22263
>                 URL: https://issues.apache.org/jira/browse/SPARK-22263
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Gengliang Wang
>            Priority: Critical
>
> The method `deterministic` is frequently called in optimizer.
> Refactor `deterministic` as lazy value, in order to avoid redundant computations.



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