> From: Claudio Freire <klaussfreire(at)gmail(dot)com>
> I hope I'm not talking to myself.
Indeed not. I also looked into prefetching for pure index scans for b-trees (and extension to use async io).
http://archives.postgresql.org/message-id/BLU0-SMTP31709961D846CCF4F5EB4C2A3930%40phx.gbl
I am not where I have a proper setup this week but will reply at greater length next week.
John