ttrss_ynh/source/schema/versions/mysql/99.sql

begin;

alter table ttrss_feeds add column cache_content bool;
update ttrss_feeds set cache_content = false;
alter table ttrss_feeds change cache_content cache_content bool not null;
alter table ttrss_feeds alter column cache_content set default false;

alter table ttrss_entries add column cached_content longtext;

update ttrss_version set schema_version = 99;

commit;