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https://issues.apache.org/jira/browse/HIVE-5998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13961156#comment-13961156
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Brock Noland commented on HIVE-5998:
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+1
> Add vectorized reader for Parquet files
> ---------------------------------------
>
> Key: HIVE-5998
> URL: https://issues.apache.org/jira/browse/HIVE-5998
> Project: Hive
> Issue Type: Sub-task
> Components: Serializers/Deserializers, Vectorization
> Reporter: Remus Rusanu
> Assignee: Remus Rusanu
> Priority: Minor
> Labels: Parquet, vectorization
> Attachments: HIVE-5998.1.patch, HIVE-5998.10.patch,
> HIVE-5998.11.patch, HIVE-5998.12.patch, HIVE-5998.13.patch,
> HIVE-5998.2.patch, HIVE-5998.3.patch, HIVE-5998.4.patch, HIVE-5998.5.patch,
> HIVE-5998.6.patch, HIVE-5998.7.patch, HIVE-5998.8.patch, HIVE-5998.9.patch
>
>
> HIVE-5783 is adding native Parquet support in Hive. As Parquet is a columnar
> format, it makes sense to provide a vectorized reader, similar to how RC and
> ORC formats have, to benefit from vectorized execution engine.
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