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From "Szehon Ho (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-9215) Some mapjoin queries broken with IdentityProjectRemover with PPD
Date Wed, 24 Dec 2014 21:31:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9215?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Szehon Ho updated HIVE-9215:
----------------------------
    Attachment: auto_join_ppd.q

Attaching testcase that repro's the issue.  Expected one row of output, got none.

> Some mapjoin queries broken with IdentityProjectRemover with PPD
> ----------------------------------------------------------------
>
>                 Key: HIVE-9215
>                 URL: https://issues.apache.org/jira/browse/HIVE-9215
>             Project: Hive
>          Issue Type: Bug
>          Components: Logical Optimizer
>    Affects Versions: 0.15.0
>            Reporter: Szehon Ho
>         Attachments: auto_join_ppd.q
>
>
> IdentityProjectRemover (hive.optimize.remove.identity.project) with PPD will sometimes
make mapjoin query that returns the wrong result in MR case as well.



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