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mirror of https://github.com/postgres/postgres.git synced 2025-07-31 22:04:40 +03:00

Merge documentation into one book. (Build with "make html".) Replace

vague cross-references with real links.
This commit is contained in:
Peter Eisentraut
2003-03-25 16:15:44 +00:00
parent 685a4934d2
commit 5e5c5cd31a
93 changed files with 548 additions and 1049 deletions

View File

@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/perform.sgml,v 1.27 2003/03/13 01:30:29 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/perform.sgml,v 1.28 2003/03/25 16:15:37 petere Exp $
-->
<chapter id="performance-tips">
@ -65,8 +65,8 @@ $Header: /cvsroot/pgsql/doc/src/sgml/perform.sgml,v 1.27 2003/03/13 01:30:29 pet
The costs are measured in units of disk page fetches. (CPU effort
estimates are converted into disk-page units using some
fairly arbitrary fudge factors. If you want to experiment with these
factors, see the list of run-time configuration parameters in the
&cite-admin;.)
factors, see the list of run-time configuration parameters in
<xref linkend="runtime-config">.)
</para>
<para>
@ -572,7 +572,7 @@ SELECT * FROM a, b, c WHERE a.id = b.id AND b.ref = c.id;
search to a <firstterm>genetic</firstterm> probabilistic search
through a limited number of possibilities. (The switch-over threshold is
set by the <varname>geqo_threshold</varname> run-time
parameter described in the &cite-admin;.)
parameter.)
The genetic search takes less time, but it won't
necessarily find the best possible plan.
</para>