Log Message:
-----------
Avoid crashing when restoring a saved GUC session_authorization value
that refers to a now-deleted userid. Per gripe from Chris Ochs.
Modified Files:
--------------
pgsql-server/src/backend/commands:
variable.c (r1.98 -> r1.99)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/commands/variable.c.diff?r1=1.98&r2=1.99)
pgsql-server/src/backend/utils/misc:
guc.c (r1.230 -> r1.231)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/misc/guc.c.diff?r1=1.230&r2=1.231)