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