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https://issues.apache.org/jira/browse/HIVE-10031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dong Chen updated HIVE-10031:
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Attachment: HIVE-10031.1-parquet.patch
Thanks for your review! [~Ferd], [~spena]
I update patch v1 to revoke the change in
{{ProjectionPusher.pushProjectionsAndFilters()}} to keep the logic of conf
clone.
> Modify the using of jobConf variable in ParquetRecordReaderWrapper constructor
> ------------------------------------------------------------------------------
>
> Key: HIVE-10031
> URL: https://issues.apache.org/jira/browse/HIVE-10031
> Project: Hive
> Issue Type: Sub-task
> Reporter: Dong Chen
> Assignee: Dong Chen
> Attachments: HIVE-10031-parquet.patch, HIVE-10031.1-parquet.patch
>
>
> In {{ParquetRecordReaderWrapper}} constructor, it create splits, set
> projections and filters in conf, create task context, and then create Parquet
> record reader. In this procedure, we could improve the logic of conf usage:
> 1. the clone of jobConf is not necessary. This could speed up getRecordReader
> a little.
> 2. the updated jobConf is not passed to Parquet in one case.
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