Ditto...and the necessary changes aren't simply gratuitous, they fix
cases where PG 7.O "pretended" to do the right thing, but in actuality
didn't. So the existing ported queries only worked in a limited sense
anyway. The changes necessary to make them work correctly are
minimal, and we're better off having PG tell us to do them right
rather than have the queries not work quite as expected (as was true
in 7.0)
