> On 29 Mar 2023, at 21:11, Sebastien Flaesch <sebastien.flaesch@xxxxxxx> wrote: > > Oh the use of default keyword is new to me, thanks for that. > > But to make PostgreSQL more Informix-compatible, zero should have been considered as well. …No, I’m not going to be humble about this opinion… Postgres does a sane thing here. It’s Informix that you should be complaining about. Zero is not a sane value to specify special behaviour, it could mean zero and be just as valid. By consequence, Informix probably forbids zero as a sequence value, but that is an artefact (and a limitation) of its implementation, not a feature. The core of your problem however, is that you’re trying to get database-agnostic behaviour by relying on database-specific features. That is not going to work, you’ve just been lucky enough to get away with it until now. There’s really only one realistic answer here: Fix your design. Regards, Alban Hertroys -- There is always an exception to always.