alter table ttrss_feeds change pubsub_state pubsub_state integer not null;
alter table ttrss_feeds alter column pubsub_state set default 0;
-alter table ttrss_users drop foreign key ttrss_users_ibfk_1
+alter table ttrss_users drop foreign key ttrss_users_ibfk_1;
alter table ttrss_users drop column theme_id;
drop table ttrss_themes;