AMatveev(at)bitec(dot)ru writes:
> Is  there  any  plan  to  implement  "session  per  thread" or "shared
> sessions between thread"?
No, not really.  The amount of overhead that would add --- eg, the need
for locking on what used to be single-use caches --- makes the benefit
highly questionable.  Also, most people who need this find that sticking
a connection pooler in front of the database solves their problem, so
there's not that much motivation to do a ton of work inside the database
to solve it there.
			regards, tom lane