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https://issues.apache.org/jira/browse/HIVE-15664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15831194#comment-15831194
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Sergey Shelukhin commented on HIVE-15664:
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[~gopalv] [~mmccline] can you take a look? Thanks. It reuses some code from
VectorMapOperator as part of #2
> LLAP text cache: improve first query perf I
> -------------------------------------------
>
> Key: HIVE-15664
> URL: https://issues.apache.org/jira/browse/HIVE-15664
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-15664.patch, HIVE-15664.WIP.patch
>
>
> 1) Don't use ORC dictionary.
> 2) Use VectorDeserialize.
> 3) Don't parse the columns that are not included (cannot avoid reading them).
> -4) Send VRB to the pipeline and write ORC in parallel (in background)-.
> HIVE-15672
> Also add an option to disable the encoding pipeline server-side.
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