How to list property constraints?

[adubkov]

I can't find it in the documentation. Is there a way to list which constraints do properties have?
info types seems to return only id, name and type:

1[{id=0, name=name, type=STRING, custom={}}]

Related issue #888

[lvca]

Your idea in the issue #888 works for me, I'm going to assign it for the next release in March.