Log Message:
-----------
Fix define_custom_variable so that SUSET custom variables behave
somewhat reasonably. It's not perfect, but it beats the kluge
proposed in the auto-explain patch ...
Modified Files:
--------------
pgsql/src/backend/utils/misc:
guc.c (r1.478 -> r1.479)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c?r1=1.478&r2=1.479)