Are tables the same if the schema differs in names only but the content is the same? Are tables different if one table has triggers defined on it where other one doesn't? Same for various constraints? What if tables have infinite reference loops? Or if different foreign keys point to the "equal" tows? What if types in the schema don't match but values do (if interpreted as some third type)? Are currently active transactions taken into account?

I find the idea of comparing two SQL tables weird / pointless in general. Maybe OK, if implemented with some very restrictive and well-defined semantics, but I wouldn't rely on a third-party tool to do something like this.