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Posted to issues@trafodion.apache.org by "Hans Zeller (JIRA)" <ji...@apache.org> on 2017/10/02 20:22:00 UTC

[jira] [Work started] (TRAFODION-2761) Error when all TMUDF columns are eliminated

     [ https://issues.apache.org/jira/browse/TRAFODION-2761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on TRAFODION-2761 started by Hans Zeller.
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> Error when all TMUDF columns are eliminated
> -------------------------------------------
>
>                 Key: TRAFODION-2761
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2761
>             Project: Apache Trafodion
>          Issue Type: Bug
>          Components: sql-cmp
>    Affects Versions: 2.0-incubating
>            Reporter: Hans Zeller
>            Assignee: Hans Zeller
>             Fix For: 2.3-incubating
>
>
> TMUDFs have the ability to eliminated unneeded columns, both in their result and in their child table. However, when we eliminate all columns in the child table, I have been seeing core dumps, as we dereference some data structures that aren't there in that case. Sorry, I don't have a good and easy test case at the moment, but I have been able to identify the problem spots and code a fix.



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