Re: duplicate key violates unique constraint pg_toast_635216540

"Paul Laughlin" <plaughlin@gmail.com> writes:
> We got it early last week and again this morning.  Before these two it was
> about six months ago.

A certain amount of clustering could be expected, if a lot of the
entries were made at the time of initial table load --- they'd have
nearby OIDs.  You can either ignore it (I doubt you need REINDEX, just
retry the update) or else update to PG 8.1 ...

            regards, tom lane