text: insert into repository_kind values (12, 'Containers images');
  alter table snapshot drop constraint snapshot_package_id_digest_key;
  alter table repository add column data jsonb;
  
  ---- create above / drop below ----
  
  delete from repository_kind where repository_kind_id = 12;
  alter table snapshot add constraint snapshot_package_id_digest_key unique (package_id, digest);
  alter table repository drop column data;
  