Log Message:
-----------
Guard against transaction control statements in SQL functions. This
never worked, but it particularly doesn't work now.
Modified Files:
--------------
pgsql-server/src/backend/executor:
functions.c (r1.86 -> r1.87)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/executor/functions.c.diff?r1=1.86&r2=1.87)