On Fri, 2002-12-06 at 13:18, Kelly McDonald wrote:
> Josh,
>
> Actually, I'm not really concerned about what the last value was or is,
> but I am trying to find out if nextval has already been called within
> the current session. so I can do something like:
>
> if currval_wont_puke('sequence') then
> select currval('sequence')
> else
> select nextval('sequence')
>
> the part that I'm looking for is the currval_wont_puke() function.
Since it is in the _current_ session, surely you can know whether you
have called nextval() without asking the backend? You need to set a
flag in your program when you use it or do an insert that will trigger
it from a serial column, and test that.
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight, UK http://www.lfix.co.uk/oliver
GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C
========================================
"Go ye therefore, and teach all nations, baptizing them
in the name of the Father, and of the Son, and of the
Holy Ghost; Teaching them to observe all things
whatsoever I have commanded you; and, lo, I am with
you alway, even unto the end of the world. Amen."
Matthew 28:19,20
