On Wed, Mar 6, 2013 at 8:32 AM, Joachim Wieland <j...@mcknight.de> wrote: > On Tue, Mar 5, 2013 at 8:32 AM, Heikki Linnakangas > <hlinnakan...@vmware.com> wrote: >> With these tweaks, I was able to make pglz-based delta encoding perform >> roughly as well as Amit's patch. > > Out of curiosity, do we know how pglz compares with other algorithms, e.g. > lz4 ?
This has been a subject of much recent discussion. It compares very poorly, but installing a new compressor tends to be problematic due to patent concerns (something which I disagree with but it's there). All that said, Heikki's proposed changes seem to be low risk and quite fast. merlin -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
