From: Simon Riggs <simon@2ndQuadrant.com>
Date: Fri, 15 Oct 2010 09:17:12 +0000 (+0100)
Subject: Correct WAL space calculation formula in docs.
X-Git-Tag: REL9_1_ALPHA2~80
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=915116bc62db2aaec7001bde6610128f4cbd29f9;p=postgresql

Correct WAL space calculation formula in docs.

Error pointed out by Fujii Masao, though not his patch.
---

diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
index 2726acb8a7..5678d6ebdd 100644
--- a/doc/src/sgml/wal.sgml
+++ b/doc/src/sgml/wal.sgml
@@ -450,9 +450,9 @@
 
   <para>
    There will always be at least one WAL segment file, and will normally
-   not be more than (2 + <varname>checkpoint_completion_target</varname>) * <varname>checkpoint_segments</varname> + 1
-   or <varname>checkpoint_segments</> + <xref linkend="guc-wal-keep-segments"> + 1
-   files.  Each segment file is normally 16 MB (though this size can be
+   not be more files than the higher of <xref linkend="guc-wal-keep-segments"> or
+   (2 + <varname>checkpoint_completion_target</varname>) * <varname>checkpoint_segments</varname> + 1.
+   Each segment file is normally 16 MB (though this size can be
    altered when building the server).  You can use this to estimate space
    requirements for <acronym>WAL</acronym>.
    Ordinarily, when old log segment files are no longer needed, they