2017-11-08 15:31 GMT+01:00 Pavel Stehule <pavel.steh...@gmail.com>: > > > 2017-11-08 15:23 GMT+01:00 Peter Eisentraut <peter.eisentraut@2ndquadrant. > com>: > >> On 10/31/17 16:50, Pavel Stehule wrote: >> > Not sure if disabling RETURN is good idea. I can imagine so optional >> > returning something like int status can be good idea. Cheaper than >> > raising a exception. >> >> We could allow a RETURN without argument in PL/pgSQL, if you just want >> to exit early. That syntax is currently not available, but it should >> not be hard to add. >> >> I don't understand the point about wanting to return an int. How would >> you pass that around, since there is no declared return type? >> > > We can create auto session variable STATUS. This variable can be 0 if > procedure was returned without explicit RETURN value. Or it can hold > different value specified by RETURN expr. > > This value can be read by GET DIAGNOSTICS xxx = STATUS > > or some similar. >
The motivation is allow some mechanism cheaper than our exceptions. Regards Pavel > > > >> -- >> Peter Eisentraut http://www.2ndQuadrant.com/ >> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services >> > >
