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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-970) Add new metadata methods to network client driver
Date Thu, 09 Mar 2006 17:09:53 GMT
    [ http://issues.apache.org/jira/browse/DERBY-970?page=comments#action_12369672 ] 

Kathey Marsden commented on DERBY-970:

Sorry I didn't look at this earlier I have a few  questions as I try to come up to speed on
the issues.

1) Could you clarify the issue with JDK 1.6?
>From what I understand, the issue is:
 We just don't have access to the JDK 1.6 interfaces because in our build we don't build with
JDK 1.6.   Is that correct?   If that is the case, can our SystemProcedure just call our internal

2) With your plan will metadata.properties remain as is and we keep the stored prepared statements?

3)Could you epxplain how thie factory solution would work a little more?

And a couple of tangental questions:
Do you understand how metadata.properties changes are handled with regard to soft upgrade,
downgrade, upgrade, etc currentlyy?  I have had on my list for a long time to research what
is happenning in Derby with this as it was the source of intractable upgrade issues in the
past and the mechanism that I knew of to handle it (dropping the SPS's whenever the version
changed) is no longer in Derby.  I just haven't been able to get to researching it yet.

5)  Is there a general problem with incompatiblity of compiled Stored Prepared Statements
 in databases that may have been created with different JVM versions?

On   the earlier suggestions:

Either c or d  would be a fatal blow to client/server compatibility, so they have all the
appeal of euthanasia for client/server compat.

> Add new metadata methods to network client driver
> -------------------------------------------------
>          Key: DERBY-970
>          URL: http://issues.apache.org/jira/browse/DERBY-970
>      Project: Derby
>         Type: Sub-task
>     Reporter: David Van Couvering
>     Assignee: Knut Anders Hatlen

> Implement new JDBC 4.0 DatabaseMetaData methods in the client driver:
>   - supportsStoredFunctionsUsingCallSyntax()
>   - autoCommitFailureClosesAllResultSets()
>   - getClientInfoProperties()
>   - providesQueryObjectGenerator()
>   - getSchemas()

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