rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix typo 233 pages -> 333 pages.

This commit is contained in:
Bruce Momjian 2003-01-27 22:40:56 +00:00
parent 70fba70430
commit 9b9b14915b
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
doc/src/sgml/perform.sgml
View File

@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/perform.sgml,v 1.24 2003/01/25 23:10:27 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/perform.sgml,v 1.25 2003/01/27 22:40:56 momjian Exp $
-->
<chapter id="performance-tips">
@ -109,8 +109,8 @@ regression=# EXPLAIN SELECT * FROM tenk1;
SELECT * FROM pg_class WHERE relname = 'tenk1';
</programlisting>
you will find out that <classname>tenk1</classname> has 233 disk
pages and 10000 rows. So the cost is estimated at 233 page
you will find out that <classname>tenk1</classname> has 333 disk
pages and 10000 rows. So the cost is estimated at 333 page
reads, defined as costing 1.0 apiece, plus 10000 * <varname>cpu_tuple_cost</varname> which is
currently 0.01 (try <command>SHOW cpu_tuple_cost</command>).
</para>