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From "Koji Noguchi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-3492) ColumnPrune dropping used column due to LogicalRelationalOperator.fixDuplicateUids changes not propagating
Date Wed, 09 Oct 2013 16:54:42 GMT

     [ https://issues.apache.org/jira/browse/PIG-3492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Koji Noguchi updated PIG-3492:
------------------------------

    Attachment:     (was: pig-3492-v0.12_01.patch)

> ColumnPrune dropping used column due to LogicalRelationalOperator.fixDuplicateUids changes
not propagating
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-3492
>                 URL: https://issues.apache.org/jira/browse/PIG-3492
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.11.1, 0.12.1, 0.13.0
>            Reporter: Koji Noguchi
>
> I don't have a testcase I can upload at the moment, but here's my observation.
> SplitFilter -> schemaResetter -> LOGenerate.getSchema -> LogicalRelationalOperator.fixDuplicateUids()
creating a new UID but that UID is not propagated to the entire plan (since SplitFilter.reportChanges
only returns subplan).
> As a result, I am seeing ColumnPruning cutting off those used columns.



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