Can't change not null column to nullable

The documentation says that “nullable” is a valid attribute for modifyDataType, but when I try to use it the xml schema validation complains, and if i try to run it, it blows up.

Is there another way to do this?

I have to support, postgres, H2, and Oracle…


what do you mean by “it blows up”? are you trying to refactor the column, changing it from non-null to nullable? If that’s the case, make sure that you do not have any null value in your column prior to refactoring it.