Kris Jurka wrote:


On Fri, 1 May 2009, Adam B wrote:

Our webapp relies heavily on JDBC's Statement.getGeneratedKeys()
abstraction.  We are investigating switching from Mysql to Postgre so I
created a basic implementation of this feature in the 8.3-604 version of
the driver.  The diff patch is attached.

This has some pretty severe restrictions and some more that aren't mentioned (overriding getUpdateCount(), not using the V2 protocol which has nothing to do with JDBC2/3).  We've implemented generated key support in CVS for the upcoming 8.4 release that is more robust, but makes some other tradeoffs (returning all columns rather that just a single key).  Could you test this out in your application?
I'd be glad to give that a try.  I'm all for an official implementation as long as it's reasonably fast.  However I probably wont be able to get to it for about a week (vacation).

CVS info here:

http://jdbc.postgresql.org/development/cvs.html

A thread discussing how it doesn't work for a Spring application here:

http://archives.postgresql.org//pgsql-jdbc/2009-04/threads.php#00081

Kris Jurka




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