Andrew Gierth <andrew@tao11.riddles.org.uk> writes:
> So while helping someone with an unrelated issue, I did a quick query to
> look for collation-dependent indexes, and was rather shocked to find
> that not only are there two such in the system catalogs, both set to
> "default" collation, but that one of them is in a _shared_ catalog
> (pg_shseclabel).
> How did that happen? And how could it possibly work?
It probably doesn't, and the reason nobody has noticed is that the
security label stuff has fewer users than I have fingers (and those
people aren't using provider names that would cause anything interesting
to happen).
The most obvious fix is to change "provider" to a NAME column.
What was the other case? We might want to add a regression test to
check for collation-dependent system indexes ...
regards, tom lane