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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-17320) OrcRawRecordMerger.discoverKeyBounds logic can be simplified
Date Tue, 15 Aug 2017 00:06:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eugene Koifman reassigned HIVE-17320:
-------------------------------------


> OrcRawRecordMerger.discoverKeyBounds logic can be simplified
> ------------------------------------------------------------
>
>                 Key: HIVE-17320
>                 URL: https://issues.apache.org/jira/browse/HIVE-17320
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>             Fix For: 3.0.0
>
>
> with HIVE-17089 we never have any insert events in the deltas
> so if for every split of the base we know min/max key, we can use them to filter delete
events since all files are sorted by RecordIdentifier
> So we should be able to create SARG for all delete deltas
> the code can be simplified since now min/max key doesn't ever have to be null



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