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https://issues.apache.org/jira/browse/HIVE-19838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16506667#comment-16506667
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Sergey Shelukhin commented on HIVE-19838:
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[~ekoifman] [~teddy.choi] can you take a look? thnx
> simplify & fix ColumnizedDeleteEventRegistry load loop
> ------------------------------------------------------
>
> Key: HIVE-19838
> URL: https://issues.apache.org/jira/browse/HIVE-19838
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Major
> Attachments: HIVE-19838.patch
>
>
> Apparently sometimes the delete count in ACID stats doesn't match what merger
> actually returns.
> It could be due to some deltas having duplicate deletes from parallel queries
> (I guess?) that are being squashed by the merger or some other reasons beyond
> my mortal comprehension.
> The loop assumes the merger will return the exact number of records, so it
> fails with array index exception. Also, it could actually be done in a single
> loop.
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