"Yinan Li" <yinanli@xxxxxxxxxx> 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 ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
