Back in March we discussed the advisability of having a buildfarm critter
or two running with -DCOPY_PARSE_PLAN_TREES:
http://www.postgresql.org/message-id/14670.1427727751@sss.pgh.pa.us
but evidently nobody acted on the idea. I've now turned on that option
on dromedary. It will fail its next HEAD run, unless Peter fixes
DROP TRANSFORM first ... but I await the results for back branches with
some trepidation.
regards, tom lane