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From "Micah Whitacre (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CRUNCH-239) Add support for unions of PTypes
Date Sun, 18 Aug 2013 21:38:48 GMT

     [ https://issues.apache.org/jira/browse/CRUNCH-239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Micah Whitacre updated CRUNCH-239:
----------------------------------

    Issue Type: Improvement  (was: Bug)
    
> 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: Josh Wills
>
> 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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