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From Gokhan Ergul <>
Subject Re: [jira] Commented: (OPENJPA-231) Incorrect handling of cascading bidirectional collections during merge/attach
Date Tue, 15 May 2007 00:25:29 GMT
Philippe Alexis wrote:
> Firstly, I had no problem getting updateAttached (EntityManager em) to 
> run
> fine on both SQL Server and Postgresql,
> got the count of 4.
Forgot to comment on this one:

I don't use Postgres or SQLServer, but I'm assuming they have this nifty 
little feature called "deferred FK enforcement", iow "check on commit", 
where FK violations are checked by the database at transaction commit, 
as opposed to checking at each DML statement executed. Mysql doesn't 
have that feature, hence executing statements in the correct order 
becomes an issue. If you disable that on Postgres/SQLServer, you should 
see the same behaviour.


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