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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2020/12/07 11:57:00 UTC

[jira] [Assigned] (SPARK-33689) ArrayData specialization to enable RowEncoder primitive arrays support

     [ https://issues.apache.org/jira/browse/SPARK-33689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-33689:
------------------------------------

    Assignee:     (was: Apache Spark)

> ArrayData specialization to enable RowEncoder primitive arrays support
> ----------------------------------------------------------------------
>
>                 Key: SPARK-33689
>                 URL: https://issues.apache.org/jira/browse/SPARK-33689
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.0.1
>            Reporter: Artem Kupchinskiy
>            Priority: Major
>
> Currently, even non-nullable array fields are represented as WrappedArray.ofRef in external rows. It leads to memory footprint, as well as unnecessary cycles in boxing/unboxing operations. Ideally, if arrays are non-nullable and contain primitive values, they should be represented as specialized less-overhead versions of WrappedArray.



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