On Thu, Mar 8, 2012 at 2:01 PM, Andy Colson <andy@squeakycode.net> wrote:
> I know toast compresses, but I believe its only one row. page level would
> compress better because there is more data, and it would also decrease the
> amount of IO, so it might speed up disk access.
er, but when data is toasted it's spanning pages. page level
compression is a super complicated problem.
something that is maybe more attainable on the compression side of
things is a userland api for compression -- like pgcrypto is for
encryption. even if it didn't make it into core, it could live on
reasonably as a pgfoundry project.
merlin