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https://issues.apache.org/jira/browse/PIG-450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates updated PIG-450:
---------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Patch checked in.
> PERFORMANCE: Distinct should make use of combiner to remove duplicate values
> from keys.
> ----------------------------------------------------------------------------------------
>
> Key: PIG-450
> URL: https://issues.apache.org/jira/browse/PIG-450
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: types_branch
> Reporter: Alan Gates
> Assignee: Alan Gates
> Fix For: types_branch
>
> Attachments: PIG-450.patch
>
>
> In 2.0 distinct was improved by removing values in the map and just passing
> an empty tuple along with the key. This can be further improved by adding a
> combiner step that passes along only the first empty tuple instead of all of
> them.
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