Log Message:
-----------
Avoid infinite recursion when dumping new planner EquivalenceClass trees.
Modified Files:
--------------
pgsql/src/backend/nodes:
outfuncs.c (r1.296 -> r1.297)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/outfuncs.c.diff?r1=1.296&r2=1.297)