WAL documentation, from Oliver Elphick and Vadim Mikheev.

doc/src/sgml/admin.sgml

 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/Attic/admin.sgml,v 1.30 2001/01/24 19:42:46 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/Attic/admin.sgml,v 1.31 2001/01/24 23:15:19 petere Exp $
 -->
 
 <book id="admin">
@@ -58,6 +58,7 @@ $Header: /cvsroot/pgsql/doc/src/sgml/Attic/admin.sgml,v 1.30 2001/01/24 19:42:46
   &manage-ag;
   &user-manag;
   &backup;
+  &wal;
   &recovery;
   &regress;
   &release;

doc/src/sgml/filelist.sgml

-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/filelist.sgml,v 1.5 2001/01/22 23:34:32 petere Exp $ -->
+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/filelist.sgml,v 1.6 2001/01/24 23:15:19 petere Exp $ -->
 
 <!entity about      SYSTEM "about.sgml">
 <!entity history    SYSTEM "history.sgml">
@@ -54,6 +54,7 @@
 <!entity release       SYSTEM "release.sgml">
 <!entity runtime       SYSTEM "runtime.sgml">
 <!entity user-manag    SYSTEM "user-manag.sgml">
+<!entity wal           SYSTEM "wal.sgml">
 
 <!-- programmer's guide -->
 <!entity arch-pg    SYSTEM "arch-pg.sgml">

doc/src/sgml/runtime.sgml

 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.47 2001/01/24 15:19:36 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.48 2001/01/24 23:15:19 petere Exp $
 -->
 
 <Chapter Id="runtime">
@@ -1159,6 +1159,57 @@ env PGOPTIONS='-c geqo=off' psql
    </para>
    </sect2>
 
+   <sect2 id="runtime-config-wal">
+    <title>WAL</title>
+
+   <para>
+    See also <xref linkend="wal-configuration"> for details on WAL
+    tuning.
+
+    <variablelist>
+     <varlistentry>
+      <term>CHECKPOINT_TIMEOUT (<type>integer</type>)</term>
+      <listitem>
+       <para>
+        Frequency of automatic WAL checkpoints, in seconds.
+       </para>
+      </listitem>
+     </varlistentry>
+
+     <varlistentry>
+      <term>WAL_BUFFERS (<type>integer</type>)</term>
+      <listitem>
+       <para>
+        Number of buffers for WAL.  This option can only be set at
+        server start.
+       </para>
+      </listitem>
+     </varlistentry>
+
+     <varlistentry>
+      <term>WAL_DEBUG (<type>integer</type>)</term>
+      <listitem>
+       <para>
+        If non-zero, turn on WAL-related debugging output on standard
+        error.
+       </para>
+      </listitem>
+     </varlistentry>
+
+     <varlistentry>
+      <term>WAL_FILES (<type>integer</type>)</term>
+      <listitem>
+       <para>
+        Number of log files that are created in advance at checkpoint
+        time.  This option can only be set at server start.
+       </para>
+      </listitem>
+     </varlistentry>
+    </variablelist>
+    </para>
+   </sect2>
+
+
    <sect2 id="runtime-config-short">
     <title>Short options</title>
    <para>