pgsql: expandRTE and get_rte_attribute_type mistakenly always imputed

Log Message:
-----------
expandRTE and get_rte_attribute_type mistakenly always imputed typmod -1
to columns of an RTE that was a function returning RECORD with a column
definition list.  Apparently no one has tried to use non-default typmod
with a function returning RECORD before.

Tags:
----
REL8_0_STABLE

Modified Files:
--------------
    pgsql/src/backend/parser:
        parse_relation.c (r1.102 -> r1.102.4.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_relation.c.diff?r1=1.102&r2=1.102.4.1)