On Mon, Oct 19, 2009 at 2:08 PM, marcin mank <marcin.m...@gmail.com> wrote: > Currently random_page_cost is a GUC. I propose that this could be set > per-table.
Or per-tablespace. Yes, I think there are a class of GUCs which describe the physical attributes of the storage system which should be per-table or per-tablespace. random_page_cost, sequential_page_cost, effective_io_concurrency come to mind. While this isn't a simple flag to change it does seem like a bit of a SMOP. The GUC infrastructure stores these values in global variables which the planner and other systems consult directly. They would instead have to be made storage parameters which the planner and other systems check on the appropriate table and default to the global GUC if they're not set. -- greg -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
