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https://issues.apache.org/jira/browse/CRUNCH-501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14333745#comment-14333745
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Josh Wills commented on CRUNCH-501:
-----------------------------------
Ack, this one looks tricky. [~gabriel.reid], I could use some advice here: how
do we inject the PType so can we detach it inside of the Aggregator in a way
that doesn't horribly break backwards compatibility? Or should we do it in the
CrunchCombiner/CrunchReducer in some way instead?
> 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
>
> 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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