[jira] Assigned: (DERBY-4230) DatabaseMetaData.getColumns() returns extra column from view with group by and expression in SELECT list

["Kathey Marsden (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-4230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kathey Marsden reassigned DERBY-4230:
-------------------------------------

    Assignee: Kathey Marsden

> DatabaseMetaData.getColumns() returns extra column from view with group by and  expression in SELECT list
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4230
>                 URL: https://issues.apache.org/jira/browse/DERBY-4230
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.3.2.1
>            Reporter: Kathey Marsden
>            Assignee: Kathey Marsden
>         Attachments: create.sql, ViewTest.java
>
>
> DatabaseMetaData.getColumns() returns an extra column for a view with a group by and an expression in the select list.  I will attach the reproduction. Run the script create.sql and then the program ViewTest.
> This is a regression in version 10.3, It ran ok on latest on the 10.1 and 10.2 branches.
> The ResultSetMetaData appears to return the correct number of columns  when you select from the view, but it would be nice to add a regression test for that too.
> See discussion on derby-dev.
> http://www.nabble.com/extra-column-in-DatabaseMetaData.getColumns()-with-group-by-in-view-td23545576.html

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