[jira] Updated: (PIG-1213) Schema serialization is broken

["Pradeep Kamath (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-1213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pradeep Kamath updated PIG-1213:
--------------------------------

    Attachment: PIG-1213.patch

Attached patch addresses the issue - a couple of data structures in Schema are only used by the front-end query planning code to figure out lineage to handle casts of bytearrays. These data structures don't need to be serialized to the backend. Hence in the patch they are marked transient which fixes the issue.

> Schema serialization is broken
> ------------------------------
>
>                 Key: PIG-1213
>                 URL: https://issues.apache.org/jira/browse/PIG-1213
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.6.0
>            Reporter: Pradeep Kamath
>            Assignee: Pradeep Kamath
>             Fix For: 0.6.0
>
>         Attachments: PIG-1213.patch
>
>
> Consider a udf which needs to know the schema of its input in the backend while executing. To achieve this, the udf needs to store the schema into the UDFContext. Internally the UDFContext will serialize the schema into the jobconf. However this currently is broken and gives a Serialization exception

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