Log Message:
-----------
Put back copyObject() call I removed in a fit of brain fade. This one
is still needed despite cleanups in setrefs.c, because the point is to
let the inserted Result node compute a different tlist than its input
node does. Per example from Jeremy Drake.
Modified Files:
--------------
pgsql/src/backend/optimizer/plan:
createplan.c (r1.226 -> r1.227)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/plan/createplan.c.diff?r1=1.226&r2=1.227)