Savepoints will be implemented after WAL.
Vadim
> I was wondering, is it a possibility/projected to have nested
> transactions in postgres? Would MVCC support that?
>
> What I would like is following:
> begin tran a;
> do some work;
> begin tran b;
> do some other work
> rollback b;
> <at this point, only changes by transaction b are rolled back>
> ...
> commit a;
>
> Alternatively, is there a way to trap an exception in
> plpgsql? [I would assume that depends on SPI ability to trap
exceptions...]
>
> These features are really needed for people who do serious
> database-backend scripting, to compete with sybase (who has multilevel
> transactions) and oracle (who has very good exception handling).
>
> Thank you
>
> -alex
>