[jira] [Updated] (SPARK-20783) Enhance ColumnVector to support compressed representation

["Kazuaki Ishizaki (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-20783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kazuaki Ishizaki updated SPARK-20783:
-------------------------------------
    Summary: Enhance ColumnVector to support compressed representation  (was: Enhance ColumnVector to keep UnsafeArrayData for array)

> Enhance ColumnVector to support compressed representation
> ---------------------------------------------------------
>
>                 Key: SPARK-20783
>                 URL: https://issues.apache.org/jira/browse/SPARK-20783
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Kazuaki Ishizaki
>
> Current {{ColumnVector}} accepts only primitive-type Java array as an input for array. It is good to keep data from Parquet.
> On the other hand, in Spark internal, {{UnsafeArrayData}} is frequently used to represent array, map, and struct. To keep these data, this JIRA entry enhances {{ColumnVector}} to keep UnsafeArrayData.



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