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https://issues.apache.org/jira/browse/HBASE-9769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13801471#comment-13801471
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Lars Hofhansl commented on HBASE-9769:
--------------------------------------

Lastly (and sorry for being difficult), why is this faster than passing the 
small row hint to ExplicitColumnTracker and replace SEEK_NEXT_COL with SKIP? 
(this would be HBASE-9778 but with your explicit hint)

It seems the ExplicitColumnTracker then does close to the same work as 
ScanWildcardColumnTracker. 


> Improve performance of a Scanner with explicit column list when rows are 
> small/medium size
> ------------------------------------------------------------------------------------------
>
>                 Key: HBASE-9769
>                 URL: https://issues.apache.org/jira/browse/HBASE-9769
>             Project: HBase
>          Issue Type: Improvement
>          Components: Scanners
>    Affects Versions: 0.98.0, 0.94.12, 0.96.0
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>         Attachments: 9769-0.94-sample1.txt, 9769-0.94-sample2.txt, 
> 9769-0.94-sample.txt, 9769-94.txt, 9769-94-v2.txt, 9769-trunk-v1.txt, 
> 9769-trunk-v2.txt, 9769-trunk-v3.txt, 9769-trunk-v4.txt
>
>




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