Method scalar

test/dialect/postgresql/test_types.py:1748–1752

(self, connection)

    @testing.fixture()
    def scalar(self, connection):
        def go(expression):
            return connection.scalar(select(expression))

        return go

    def test_cast_name(self, scalar):
        eq_(scalar(cast("pg_class", postgresql.REGCLASS)), "pg_class")