"Yinan Li" <[EMAIL PROTECTED]> writes: > When I use the statistics collector to see the number of IO, I always get > zero in almost all of columns. I really want to know the reason for that.
It sure sounds like you don't really have stats_block_level turned on.
Did you remember to SIGHUP the postmaster after editing the
configuration file?
regards, tom lane
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TIP 5: don't forget to increase your free space map settings
