[
https://issues.apache.org/jira/browse/PIG-877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Santhosh Srinivasan updated PIG-877:
------------------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
Issue has been fixed.
> Push up filter does not account for added columns in foreach
> ------------------------------------------------------------
>
> Key: PIG-877
> URL: https://issues.apache.org/jira/browse/PIG-877
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.3.1
> Reporter: Santhosh Srinivasan
> Assignee: Santhosh Srinivasan
> Fix For: 0.3.1
>
> Attachments: PIG-877.patch
>
>
> If a filter follows a foreach that produces an added column then push up
> filter fails with a null pointer exception.
> {code}
> ...
> x = foreach w generate $0, COUNT($1);
> y = filter x by $1 > 10;
> {code}
> In the above example, the column in the filter's expression is an added
> column. As a result, the optimizer rule is not able to map it back to the
> input resulting in a null value. The subsequent for loop is failing due to
> NPE.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
