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Posted to dev@pig.apache.org by "Daniel Dai (JIRA)" <ji...@apache.org> on 2015/05/14 21:15:00 UTC

[jira] [Commented] (PIG-4503) [Pig on Tez] NPE in UnionOptimizer with multiple levels of union

    [ https://issues.apache.org/jira/browse/PIG-4503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14544216#comment-14544216 ] 

Daniel Dai commented on PIG-4503:
---------------------------------

+1

> [Pig on Tez] NPE in UnionOptimizer with multiple levels of union
> ----------------------------------------------------------------
>
>                 Key: PIG-4503
>                 URL: https://issues.apache.org/jira/browse/PIG-4503
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.14.0
>            Reporter: Rohini Palaniswamy
>            Assignee: Rohini Palaniswamy
>             Fix For: 0.15.0
>
>         Attachments: PIG-4503-1.patch, PIG-4503-additionalfix.patch
>
>
>    When there are multiple levels of union, with the last union having both store and an output (group by,join, etc) following it then there is a NPE in 
> {code}
> if (succ.isVertexGroup()
>                         && succ.getVertexGroupInfo().getOutput()
>                                 .equals(succOp.getOperatorKey().toString())) {
>                     succOpVertexGroup = succ;
>                     break;
>                 }
> {code}
> It should check for getOutput() != null as it now has a store vertexgroup



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