Re: Migration from JoinedSubclass to UnionSubclass

[Ricardo Peres]

One think you must be aware is that with UnionSubclass (aka, Table Per Concrete Type) you cannot use Identity as the id generator strategy. If you don't use it, then forget this.

RP

On Wednesday, August 1, 2012 9:48:54 AM UTC+1, Björn Dreher wrote:

Hi

Due to a performance issue we are planning to migrate our structure from "JoinedSubclasses" to "UnionSubclasses". We have severals classes (about 50) which are derived from one baseclass and mapped as JoinedSubclass. And now we want to migrate these classes to "UnionSubclass-mapping". Has anybody an idea or experience how to migrate it?

Any help would be appreciated
Björn