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https://issues.apache.org/jira/browse/HBASE-6704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13465994#comment-13465994
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Lars Hofhansl commented on HBASE-6704:
--------------------------------------

I thought I had already removed this from 0.94+
                
> StoreScanner KV usage improvement
> ---------------------------------
>
>                 Key: HBASE-6704
>                 URL: https://issues.apache.org/jira/browse/HBASE-6704
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>         Environment: 89-fb
>            Reporter: Ramkumar Vadali
>            Priority: Trivial
>         Attachments: 
> 0001-jira-HBASE-6704-Improve-KV-usage-in-StoreScanner-nex.patch
>
>
> StoreScanner#next tries to ensure that the KVs are pulled from the heap 
> in-order. The prevKV is used for this and is compared with the latest KV 
> pulled from the heap. Since copyKV can be modified by ScanQueryMatcher, 
> prevKV should track the KV pulled from the heap, and not copyKV. This is a 
> one-line fix.

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