Log Message:-----------Improve documentation for CREATE CONSTRAINT TRIGGER.
Modified Files:-------------- pgsql/doc/src/sgml/ref: create_constraint.sgml (r1.17 -> r1.18) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_constraint.sgml.diff?r1=1.17&r2=1.18) set_constraints.sgml (r1.14 -> r1.15) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/set_constraints.sgml.diff?r1=1.14&r2=1.15)