Re: Nested Transactions, Abort All

On Fri, Jul 09, 2004 at 07:10:06PM +0200, Dennis Bjorklund wrote:
> On Fri, 9 Jul 2004, Bruce Momjian wrote:
> 
> > I think we agreed on BEGIN NESTED/COMMIT NESTED, and START NESTED
> > TRANSACTION and COMMIT NESTED TRANSACTION.
> 
> Should I read this as pg will get its own implementation of sub
> transactions and not implement the almost equivalent standard (sql99)
> savepoint feature?

I think we should get both.  Clearly savepoints do not allow for a
snapshot to be released; nested xacts do.

OTOH savepoints are trivial to implement once nested xacts are in place.
They are only syntactic sugar.

-- 
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"Pensar que el espectro que vemos es ilusorio no lo despoja de espanto,
sólo le suma el nuevo terror de la locura" (Perelandra, CSLewis)