On mån, 2012-03-05 at 19:37 -0500, Bruce Momjian wrote:
> The exact case is that the user was using plpython2u in PG 9.0, but
> the PG 9.1 one-click installer only supplies plpython3u.
That seems like a pretty stupid choice to me, if it's true.
That doesn't address your issue, but users shouldn't be forced to drop
their languages during an upgrade in the first place.