paths.add(new MapPath(String.class, String.class, StringPath.class, "p"));
paths.add(new NumberPath(Integer.class,"p"));
paths.add(new SetPath(String.class, StringPath.class, "p"));
paths.add(new SimplePath(String.class,"p"));
paths.add(new StringPath("p"));
paths.add(new TimePath(Time.class,"p"));
for (DslExpression<?> expr : paths) {
Path o = new PathImpl(expr.getType(), "o");
assertEquals(OperationImpl.create(expr.getType(), Ops.ALIAS, expr, o), expr.as("o"));
Path p = new PathImpl(expr.getType(), "p");