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https://issues.apache.org/jira/browse/HIVE-20941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16695124#comment-16695124
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Eugene Koifman edited comment on HIVE-20941 at 11/21/18 7:14 PM:
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Actually, I just realized that there may some assumptions about delta and
delete delta write ID ranges matching. Let me check on that first.
Specifically somewhere in {{AcidUtils.getAcidState()}} or somewhere in
{{CompactorMR}} where it figures out what files to include in compaction.
was (Author: ekoifman):
Actually, I just realized that there may some assumptions about delta and
delete delta write ID ranges matching. Let me check on that first.
> Compactor produces a delete_delta_x_y even if there are no input delete events
> ------------------------------------------------------------------------------
>
> Key: HIVE-20941
> URL: https://issues.apache.org/jira/browse/HIVE-20941
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 3.0.0
> Reporter: Eugene Koifman
> Assignee: Igor Kryvenko
> Priority: Major
> Attachments: HIVE-20941.01.patch, HIVE-20941.02.patch
>
>
> see example in HIVE-20901
>
> Probably change logic in CompactorMR.CompactorMap.map() which creates delete
> event writer
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