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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/10 14:36:21 UTC

[jira] [Assigned] (SPARK-15875) Avoid using Seq.length == 0 and Seq.lenth > 0. Use Seq.isEmpty and Seq.nonEmpty instead.

     [ https://issues.apache.org/jira/browse/SPARK-15875?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-15875:
------------------------------------

    Assignee:     (was: Apache Spark)

> Avoid using Seq.length == 0 and Seq.lenth > 0. Use Seq.isEmpty and Seq.nonEmpty instead.
> ----------------------------------------------------------------------------------------
>
>                 Key: SPARK-15875
>                 URL: https://issues.apache.org/jira/browse/SPARK-15875
>             Project: Spark
>          Issue Type: Improvement
>    Affects Versions: 2.0.0
>            Reporter: Yang Wang
>            Priority: Minor
>
> In scala, immutable.List.length is an expensive operation so we should
> avoid using Seq.length == 0 and Seq.lenth > 0 and use Seq.isEmpty and Seq.nonEmpty instead.



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