Subject Re: [firebird-support] Modified code - multi connection Meta data update
Author Ivan Prenosil
The code that prevents creating FK when there are more
active connections is not here by mistake. It prevents
database corruption.
With your change, existing connections will not be notified
about creation of new constraint, thus they will be able
to insert inconsistent data.


----- Original Message -----
From: "karthick srini" <kartinku@...>
To: <>
Sent: Friday, September 24, 2004 9:14 AM
Subject: [firebird-support] Modified code - multi connection Meta data update

> Hi Members ,
> This is regarding "Create Table with foreign Key"
> when there are more than one connection.
> I have debugged firebird code and commented where
> exclusive connection check is made. Then with
> firebird I was able to create table with FK in
> multiple connection. Herewith I have attached the
> modified file. Find my changes with in the comment
> "<multi connection meta data handling>".
> In the file there is a firebird comment saying that
> exclusive connection is got to create index properly.
> Even when I commented the code getting exclusive
> connection check , index gets created properly when I
> work on multiple connection. Index get created even
> for primarky key. But exclsive connection check is
> made only for foreign key based index. So please do
> let me know what is the significance in getting
> exclusive connection for foreign key based index
> alone.
> Thanks & regards,
> S.Karthick
> Software Engineer
> Note: forwarded message attached.