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From "Hari Sankar Sivarama Subramaniyan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-12645) ConstantPropagateProcCtx.resolve() should verify internal names first instead of alias to match 2 columns from different row schemas
Date Tue, 22 Dec 2015 00:34:46 GMT

     [ https://issues.apache.org/jira/browse/HIVE-12645?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hari Sankar Sivarama Subramaniyan updated HIVE-12645:
-----------------------------------------------------
    Attachment: HIVE-12645.2.patch

> ConstantPropagateProcCtx.resolve() should verify internal names first instead of alias
to match 2 columns from different row schemas 
> -------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-12645
>                 URL: https://issues.apache.org/jira/browse/HIVE-12645
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Hari Sankar Sivarama Subramaniyan
>            Assignee: Hari Sankar Sivarama Subramaniyan
>         Attachments: HIVE-12645.1.patch, HIVE-12645.2.patch
>
>
> Currently, it seems that we look to match the ColumnInfo between the parent and the child
rowschemas by calling rci = rs.getColumnInfo(tblAlias, alias) which might be a bit aggressive.
i.e. we will lose opportunity to constant propogate even if the columns are the same but the
alias in the rowschemas do not match.



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