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https://issues.apache.org/jira/browse/HIVE-21222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16761374#comment-16761374
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Eugene Koifman commented on HIVE-21222:
---------------------------------------

+1

> ACID: When there are no delete deltas skip finding min max keys
> ---------------------------------------------------------------
>
>                 Key: HIVE-21222
>                 URL: https://issues.apache.org/jira/browse/HIVE-21222
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 4.0.0, 3.2.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Major
>         Attachments: HIVE-21222.1.patch
>
>
> We create an orc reader in VectorizedOrcAcidRowBatchReader.findMinMaxKeys 
> (which will read 16K footer) even for cases where delete deltas does not 
> exist.



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