Grails problem with nullable contraint in domain class

Question

I'm having the following problem with grails' 1.2.1 domain classes:

When I set a constraint attr(nullable:true) and attr is int or bool , this condition isn't reflected in the db (postgresql 8.4). However, if attr is a String , the DB is consistent with the situation.

Any hints ?

Thanks

Answer 1

如果使用可空约束，则应使用Integer和Boolean。