Morris de Oryx <morrisdeoryx(at)gmail(dot)com> writes:
> After posting, I realized that this is likely a Stupid User Error. I was
> mucking around, and did something along the lines of
> delete from pg_statistic_ext;
> or
> delete from pg_stats_ext;
> ...instead of DROP STATISTICS calls. Would this likely explain what I'm
> seeing?
Ah, yeah, it likely would.
If this isn't a throwaway database, what you'd have to do to clear the
errors is to find and remove the now-dangling links to the deleted objects
in pg_depend.
regards, tom lane