Re: zero value in statistics collector's result

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Yinan Li" <yinanli(at)cse(dot)ust(dot)hk>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: zero value in statistics collector's result
Date: 2007-09-23 17:39:58
Message-ID: 21576.1190569198@sss.pgh.pa.us
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"Yinan Li" <yinanli(at)cse(dot)ust(dot)hk> 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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