Anyway, we suggest our customers to use sequences instead of serials.
Seb
From: Alban Hertroys <haramrae@gmail.com> Sent: Wednesday, March 29, 2023 10:15 PM To: Sebastien Flaesch <sebastien.flaesch@4js.com> Cc: Adrian Klaver <adrian.klaver@aklaver.com>; Kirk Wolak <wolakk@gmail.com>; Geoff Winkless <pgsqladmin@geoff.dj>; pgsql-general <pgsql-general@lists.postgresql.org> Subject: Re: Using CTID system column as a "temporary" primary key
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> On 29 Mar 2023, at 21:11, Sebastien Flaesch <sebastien.flaesch@4js.com> 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.
