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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2018/09/25 17:32:00 UTC

[jira] [Commented] (HIVE-17917) VectorizedOrcAcidRowBatchReader.computeOffsetAndBucket optimization

    [ https://issues.apache.org/jira/browse/HIVE-17917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16627692#comment-16627692 ] 

Eugene Koifman commented on HIVE-17917:
---------------------------------------

I don't think non-vector mode is a priority

> VectorizedOrcAcidRowBatchReader.computeOffsetAndBucket optimization
> -------------------------------------------------------------------
>
>                 Key: HIVE-17917
>                 URL: https://issues.apache.org/jira/browse/HIVE-17917
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>    Affects Versions: 3.0.0
>            Reporter: Eugene Koifman
>            Assignee: Saurabh Seth
>            Priority: Minor
>         Attachments: HIVE-17917.patch
>
>
> VectorizedOrcAcidRowBatchReader.computeOffsetAndBucket optimization() computation is currently (after HIVE-17458) is done once per split.  It could instead be done once per file (since the result is the same for each split of the same file) and passed along in OrcSplit



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