Jerry Sievers <gsievers19@comcast.net> writes:
> Felipe Gasper <felipe@felipegasper.com> writes:
>> Every database on the cluster, individually, then? Is there no way to
>> query all databases at once?
>> I mean, *something* under the hood must be doing this because DROP
>> ROLE bugs out if the role owns anything in any DB.
> That is made possible by pg_shdepend catalog which makes note of shared
> dependencies however it will *not* inform you of what specific objects
> are depending unless you visit each such DB to find out.
Yeah. You can identify the kind of object represented by each entry,
since classid values are common to all databases; but you can't resolve
any more information than that unless you connect to the DB in question.
This is because you can only "see" a given DB's system catalogs when
connected to that DB.
regards, tom lane