clueless

alter table     dav_site_node_folder_map drop constraint     dav_impls_folder_id_fk;alter table     dav_site_node_folder_map add constraint     dav_impls_folder_id_fk         foreign key (folder_id)         references cr_folders             on delete cascade;alter table     fs_root_folders drop constraint     fs_root_folder_folder_id_fk;alter table     fs_root_folders add constraint     fs_root_folder_folder_id_fk         foreign key (folder_id)         references cr_folders             on delete cascade;