Erwin Brandstetter schrieb am 28.05.2018 um 02:00: > I found an existing bug report and have something to add to it. > > What's the best way to reply to it? Just using a browser, with no newsreader installed. > > This one: > https://www.postgresql.org/message-id/flat/20170925084522.1442.32786%40wrigleys.postgresql.org#20170925084522.1442.32786@xxxxxxxxxxxxxxxxxxxxxxx > > I want to add a related question on stackoverflow.com <http://stackoverflow.com> > https://stackoverflow.com/questions/50553558/postgresql-add-serial-column-if-not-exists-still-creating-sequences/50557433 > > And that the same bug has been carried over to IDENTITY columns. > > https://dbfiddle.uk/?rdbms=postgres_10&fiddle=ac978b262727fa842aa1a71349a23767 I think that warrants a new bug report (maybe with a reference to the previous one).