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https://issues.apache.org/jira/browse/DERBY-6656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17366681#comment-17366681
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Bryan Pendleton commented on DERBY-6656:
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We'd love to have more developers contributing to Derby! Here's a great place
to start learning about the details:
[https://cwiki.apache.org/confluence/display/DERBY/DerbyDev]
Note that the lovely thing about working on Derby is that it's an old, mature,
and stable codebase.
However, also note that the challenging thing about working on Derby is that
it's an old, mature, and stable codebase.
> Re-enable views as the source data sets of MERGE statements
> -----------------------------------------------------------
>
> Key: DERBY-6656
> URL: https://issues.apache.org/jira/browse/DERBY-6656
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 10.11.1.1
> Reporter: Richard N. Hillegas
> Priority: Major
>
> The SQL Standard allows views as the source data sets of MERGE statements.
> However, we disabled this feature because of namespace resolution problems
> (see DERBY-6652). Namespace resolution for the MERGE statement needs to be
> overhauled. Some of the issues are described on DERBY-3155. When the
> namespace problems are fixed comprehensively, we may be able to allow the use
> of synonyms and subqueries and perhaps, also, the use of correlation names
> for columns.
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