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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2539) SummingCombiner does not adhere to Combiner#COLUMNS_OPTION
Date Mon, 24 Mar 2014 17:16:44 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13945371#comment-13945371
] 

Josh Elser commented on ACCUMULO-2539:
--------------------------------------

Marked this as fix for 1.6.0. I'm ok with pushing this off to 1.6.1 if that's desirable.

> SummingCombiner does not adhere to Combiner#COLUMNS_OPTION
> ----------------------------------------------------------
>
>                 Key: ACCUMULO-2539
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2539
>             Project: Accumulo
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 1.5.1
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: 1.5.2, 1.6.0
>
>
> In testing out the SummingCombiner, I set the Combiner#COLUMNS_OPTION which led me to
believe that the SummingCombiner would limit columns to the set that is provided as an option
through the IteratorSetting.
> In practice, this was not the case as Combiner#findTop isn't used, and thus that column
list is not adhered to. I can get the expected functionality out of SummingCombiner by calling
{{ScannerBase#fetchColumn}} or {{ScannerBase#fetchColumnFamily}}.



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