[firebird-support] How to return a IDENTITY field before insert it?

[Elton Fadel galdari...@yahoo.com.br [firebird-support]]

I don't know why identity is better then the old method, but if we can't have 
access to the next number, this can be useless in some cases. 
How to get it like we did on FB 2.5 with a procedure to get the next ID of a 
generator?