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https://issues.apache.org/jira/browse/HIVE-19955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Koifman reassigned HIVE-19955:
-------------------------------------

    Assignee: Eugene Koifman

> ACID: Pre-filter the delete event registry using insert delta ranges
> --------------------------------------------------------------------
>
>                 Key: HIVE-19955
>                 URL: https://issues.apache.org/jira/browse/HIVE-19955
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>            Reporter: Gopal V
>            Assignee: Eugene Koifman
>            Priority: Major
>
> Since the delete deltas that will be used for the ACID impl is limited to the 
> txn range encoded within the insert deltas, it is not useful to load any 
> delete events for any row outside of the current file's range.
> If the insert delta has "delta_3_3_0", then the "writeid=3" can be applied to 
> the delete delta list while loading it into memory - if the file has 
> "base_3", then the filter becomes "writeid <= 3".



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