[jira] [Resolved] (SPARK-15962) Introduce additonal implementation with a dense format for UnsafeArrayData

["Wenchen Fan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-15962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan resolved SPARK-15962.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

Issue resolved by pull request 13680
[https://github.com/apache/spark/pull/13680]

> Introduce additonal implementation with a dense format for UnsafeArrayData
> --------------------------------------------------------------------------
>
>                 Key: SPARK-15962
>                 URL: https://issues.apache.org/jira/browse/SPARK-15962
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Kazuaki Ishizaki
>            Assignee: Kazuaki Ishizaki
>             Fix For: 2.1.0
>
>
> It would be good to have an additional implementation, which uses dense format, for {{UnsafeArrayData}} to reduce memory footprint. Current {{UnsafeArrayData}} implementation uses only a sparse format.
> It is useful for an {{UnsafeArrayData}} that is created by a method {{fromPrimitiveArray}}, which have no {{null}} value.



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