Re: Possible mistake in 'Using EXPLAIN' section

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "James Shaw" <js102(at)zepler(dot)net>
Cc: pgsql-docs(at)postgresql(dot)org
Subject: Re: Possible mistake in 'Using EXPLAIN' section
Date: 2007-10-10 12:10:54
Message-ID: 13020.1192018254@sss.pgh.pa.us
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"James Shaw" <js102(at)zepler(dot)net> writes:
> The example given has "Seq Scan on tenk1 (cost=0.00..458.00" in the example,
> but then says, "you will find out that tenk1 has 358 disk pages" and "the
> cost is estimated at 358 page reads". Shouldn't this be 458 disk page
> reads?

No. Why did you stop reading in mid-sentence?

regards, tom lane

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