Thread: pgsql: Add regression tests to verify that domain constraints on

Log Message:
-----------
Add regression tests to verify that domain constraints on parameters
to prepared statements with unknown type are correctly enforced, per
recent bug report.

Modified Files:
--------------
    pgsql/src/test/regress/expected:
        domain.out (r1.35 -> r1.36)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/domain.out.diff?r1=1.35&r2=1.36)
    pgsql/src/test/regress/sql:
        domain.sql (r1.19 -> r1.20)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/domain.sql.diff?r1=1.19&r2=1.20)