[jira] Updated: (PIG-653) Make fieldsToRead work in loader

["Gaurav Jain (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gaurav Jain updated PIG-653:
----------------------------

    Attachment: PIG-653.patch


Zebra changes for the proposed feature

Please reveiw at your earliest convenience

> Make fieldsToRead work in loader
> --------------------------------
>
>                 Key: PIG-653
>                 URL: https://issues.apache.org/jira/browse/PIG-653
>             Project: Pig
>          Issue Type: New Feature
>            Reporter: Alan Gates
>            Assignee: Pradeep Kamath
>         Attachments: PIG-653-2.comment, PIG-653-3-proposal.txt, PIG-653.patch
>
>
> Currently pig does not call the fieldsToRead function in LoadFunc, thus it does not provide information to load functions on what fields are needed.  We need to implement a visitor that determines (where possible) which fields in a file will be used and relays that information to the load function.

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