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https://issues.apache.org/jira/browse/SPARK-17915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust updated SPARK-17915:
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Target Version/s: 2.3.0 (was: 2.2.0)
> Prepare ColumnVector implementation for UnsafeData
> --------------------------------------------------
>
> Key: SPARK-17915
> URL: https://issues.apache.org/jira/browse/SPARK-17915
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0, 2.0.1
> Reporter: Kazuaki Ishizaki
>
> Current implementations of {{ColumnarVector}} are {{OnHeapColumnarVector}}
> and {{OffHeapColumnarVector}}, which are optimized for reading data from
> Parquet. If they get an array, an map, or an struct from a {{Unsafe}} related
> data structure, it is inefficient.
> This JIRA prepares a new implementation {{OnHeapUnsafeColumnarVector}} that
> is optimized for reading data from a {{Unsafe}} related data structure.
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