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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (PIG-999) sorting on map-value fails if map-value is not of bytearray type
Date Mon, 13 Sep 2010 22:40:34 GMT

     [ https://issues.apache.org/jira/browse/PIG-999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Gates reassigned PIG-999:
------------------------------

    Assignee: Alan Gates

> sorting on map-value fails if map-value is not of bytearray type
> ----------------------------------------------------------------
>
>                 Key: PIG-999
>                 URL: https://issues.apache.org/jira/browse/PIG-999
>             Project: Pig
>          Issue Type: Sub-task
>            Reporter: Thejas M Nair
>            Assignee: Alan Gates
>             Fix For: 0.9.0
>
>
> When query execution plan is created by pig, it assumes the type to be bytearray because
there is no schema information associated with map fields.
> But at run time, the loader might return the actual type. This results in a ClassCastException.
> This issue points to the larger issue of the way pig is handling types for map-value.

> This issue should be fixed in the context of revisiting the frontend logic and pig-latin
semantics.
> This is related to PIG-880 . The patch in PIG-880 changed PigStorage to always return
bytearray for map values to work around this, but other loaders like BinStorage can return
the actual type causing this issue.

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