I'm having a hard time getting SSL compression working (or even figuring out why it's not working) with my local Postgres server. The setting [1] is documented to default to on, but according to the banner when I connect with psql, it's off.
Possibly you have the same type of problem mentioned here:
Disable compression to avoid CRIME systemwide (CVE-2012-4929).
although Ubuntu may well have done it a bit differently than Red Hat, ie the way to override openssl's default behavior might be different.
regards, tom lane
There's been a few reports on this now. Perhaps we should add a note to the docs (not necessarily saying how to fix it, as it may differ, but a note saying that many distributions changed the way this is handled and that you might need to set an external override)?
