Log Message:
-----------
Update SQL conformance for SQL to XML mappings
Modified Files:
--------------
pgsql/src/backend/catalog:
sql_features.txt (r1.15 -> r1.16)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/sql_features.txt.diff?r1=1.15&r2=1.16)