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From "Allan Shoup (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CRUNCH-501) Object reuse issue in combineValues(Aggregator)
Date Tue, 24 Feb 2015 16:51:05 GMT

    [ https://issues.apache.org/jira/browse/CRUNCH-501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14335071#comment-14335071
] 

Allan Shoup commented on CRUNCH-501:
------------------------------------

Yes, that would cover all the use cases I've encountered.

> Object reuse issue in combineValues(Aggregator)
> -----------------------------------------------
>
>                 Key: CRUNCH-501
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-501
>             Project: Crunch
>          Issue Type: Bug
>            Reporter: Brandon Davis
>         Attachments: CRUNCH-501.patch
>
>
> I'm trying to use combineValues on a PGroupedTable. I am using Aggregators.FIRST_N. If
I have 20 keys in my PGroupedTable, then I only get 20 distinct values because the AggregatorCombineFn
and FirstNAggregator don't detach the values from the incoming iterator.



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