zlacker

>>hyzyla+(OP)
As German engineers are known to say: "Why make things simple when complicated will do?"

>>arpa+R1
If you already have Postgres in your project and now you get the requirement for an additional cache store, I think it will be less complicated to reuse what you already have instead of adding another DB to your stack.

Of course, at some point of scaling needs a dedicated cache store will make sense anyway.

(Just some justifications from a german engineer :) )