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https://issues.apache.org/jira/browse/DERBY-4015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12664283#action_12664283
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Kristian Waagan commented on DERBY-4015:
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I have to say I still think the results look a bit strange, but I have nothing
to back up my opinion with.
If you can specify nothing and anything, and still get a generated key
returned, what is the point with the method?
Also, are there any databases that support getting multiple columns?
Is it possible to define multiple generated columns in MySQL and see if only
the first column is returned, or all?
How is the ordering of the columns determined?
And why return a non-generated value?
I agree that we should make the embedded and the client driver consistent right
away. On a longer term though, I'd love to get some more information on this.
> Regression in Statement.getGeneratedKeys()
> ------------------------------------------
>
> Key: DERBY-4015
> URL: https://issues.apache.org/jira/browse/DERBY-4015
> Project: Derby
> Issue Type: Bug
> Components: Network Client
> Affects Versions: 10.3.3.0
> Environment: I am currently running on Mac 10.5 with Java 5. However,
> it has also been observed on other platforms in our automated build such as
> SUSE Linux and Windows with Java 5.
> Reporter: Brandon Smith
> Assignee: Kathey Marsden
> Priority: Critical
> Attachments: Behavior-Matrix.jpg, derby-10.3.2.1-tests.zip,
> derby-10.3.3.0-tests.zip, Derby4015.java, Derby4015.java, Derby4015.java,
> updatedBehaviorMatrix.txt, updatedBehaviorMatrix.txt
>
>
> The application of both DERBY-2653 and DERBY-3426 in the 10.3.3.0 seems to
> have created a regression in how the network JDBC client implementation of
> PreparedStatement.getGeneratedKeys() behaves as compared to 10.3.2.1. Note
> that there wasn't a change in behavior between versions for the embedded
> implementation. However, in general there are behavior discrepancies between
> the network and client implementations for this method.
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