The open items list for 9.2 says
"Index-only scans need to be disabled when running under Hot Standby"
There is no explanation, so please explain here so we can change it,
if possible.
Not sure its great policy to keep implementing things that don't work
on HS, while not giving a proper chance for other people to fix that.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
