Description of problem: In addition to SQLite, Quassel also supports PostgreSQL [0]. While SQLite might work for normal users, a deployment with multiple users with many active channels quickly outgrows SQLite, and it's poor performance on large databases causes timeouts during login - that's when PostgreSQL supports comes in handy :-) [0] http://bugs.quassel-irc.org/projects/1/wiki/PostgreSQL
It is enabled, you just have to install postgresql. There was a debate in the past about having it be a hard requirement or not and the decision was to not have the package require every database backend that quassel supports and leave them optional.
I think you also need qt-postgresql.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
Now that RPM supports weak dependencies, maybe we could use a weak dep to recommend or suggest the installation of the postgresql library?
I can confirm that support for PostgreSQL is enabled (on Fedora 29) but requires the package qt5-qtbase-postgresql to be installed.