[jira] [Resolved] (HBASE-8188) Avoid unnecessary row compare in StoreScanner

["Lars Hofhansl (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-8188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl resolved HBASE-8188.
----------------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed

Committed (non-experimental version) to 0.94, 0.95, and 0.98.
                
> Avoid unnecessary row compare in StoreScanner
> ---------------------------------------------
>
>                 Key: HBASE-8188
>                 URL: https://issues.apache.org/jira/browse/HBASE-8188
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.95.1, 0.98.0, 0.94.7
>
>         Attachments: 8188-0.94-experimental.txt, 8188-0.94.txt, 8188-0.96.txt, 8188-0.96.txt, 8188-0.96.txt, 8188-0.96.txt
>
>
> When scanner batching disable (which is the default) a row compare in StoreScanner avoided, because only entire rows of data are requested.
> This provides a slight performance gain, especially for tall tables (and when all data is in the cache)

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