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https://issues.apache.org/jira/browse/HIVE-15664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin updated HIVE-15664:
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Description:
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.
was:
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).
Also add an option to disable the encoding pipeline server-side.
> LLAP text cache: improve first query perf
> -----------------------------------------
>
> 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.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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