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Date: Tue, 20 Aug 2013 01:41:51 +0000 (UTC)
From: "Micah Whitacre (JIRA)" <jira@apache.org>
To: crunch-dev@incubator.apache.org
Message-ID: <JIRA.12658463.1374132450764.727.1376962911729@arcas>
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Subject: [jira] [Assigned] (CRUNCH-239) Add support for unions of PTypes
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     [ https://issues.apache.org/jira/browse/CRUNCH-239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Micah Whitacre reassigned CRUNCH-239:
-------------------------------------

    Assignee: Micah Whitacre  (was: Josh Wills)
    
> Add support for unions of PTypes
> --------------------------------
>
>                 Key: CRUNCH-239
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-239
>             Project: Crunch
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Josh Wills
>            Assignee: Micah Whitacre
>
> There are a few core use cases (e.g., cogroups, as in CRUNCH-174) where it would be useful to construct a union of multiple PTypes into a single PType, where any given observation could only be of one of multiple/optional types.

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