Andrew Gierth <andrew@tao11.riddles.org.uk> writes:
> I'd been holding off responding in the hope of other opinions, but for
> what it's worth, I *really* dislike having pg_dump depend magically on
> some new environment variable.
Likewise.
> b) new command-line option, e.g. pg_dump --extra-float-digits=0
> This is probably the safest option, IMO. Any preferences as to the
> option name?
I like that too, assuming that it can be made to fit into the
structure of the cross-version-upgrade tests (which would have
to know to use it only with >= v12 pg_dump).
--extra-float-digits seems fine as a name.
regards, tom lane