schema/versions/pgsql/34.sql

   1 alter table ttrss_feeds rename column feed_url to feed_url_old;
   2 alter table ttrss_feeds add column feed_url text;
   3 update ttrss_feeds set feed_url = feed_url_old;
   4 alter table ttrss_feeds alter column feed_url set not null;
   5 alter table ttrss_feeds drop column feed_url_old;
   6
   7 update ttrss_version set schema_version = 34;