I have Change creation scripts of all packages that violates constraint naming standard in order to have correct name constraints for fresh installations and pass the acs-tcl datamodel__named_constraints test
All the work is committed already
I've tested on oracle and found 2 identifiers too long: rel_constraints_constraint_id_pk (acs-kernel) and application_groups_package_id_fk (acs-subsite). I've truncated them and commit to repository.