Remove Redis dependence about kitsune HOT 2 OPEN

Used similar solution in my previous job, so I can implement similar solution without extension (my previous implementation was implemented purely using PL/PGSQL, which does not require any extension)

However, I'm a little bit worried about performance, because PostgreSQL is not designed to be used like Redis (so some benchmarking should be done I guess)

from kitsune.

Yeah, exactly. That performance concern was the original reason why I removed the old queue in the first place.

The idea right now is to implement it as a secondary mode.

Leave the redis functionality as-is and add a second database mode, so that you don't have to use redis, but can if you want higher performance.

from kitsune.