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Posted to dev@pig.apache.org by "Daniel Dai (JIRA)" <ji...@apache.org> on 2015/03/13 22:53:38 UTC

[jira] [Updated] (PIG-4072) secondary sort optimizer to support multiple predecessors

     [ https://issues.apache.org/jira/browse/PIG-4072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Dai updated PIG-4072:
----------------------------
    Issue Type: Improvement  (was: Sub-task)
        Parent:     (was: PIG-3446)

> secondary sort optimizer to support multiple predecessors
> ---------------------------------------------------------
>
>                 Key: PIG-4072
>                 URL: https://issues.apache.org/jira/browse/PIG-4072
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>            Reporter: Daniel Dai
>             Fix For: 0.15.0
>
>
> As described in PIG-4064, SecondaryOptimizer does not handle two predecessors. When we process the first predecessor, we remove the foreach inner operators from the reduce side, and the second predecessor cannot see them. 



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