Document new SET SEED command.

diff --git a/doc/src/sgml/ref/set.sgml b/doc/src/sgml/ref/set.sgml
index 434fede66b7978812ae295bd688661c837eb14d8..f6e7a68cdca53709ee3abd036dfe41dee0e793e6 100644 (file)
--- a/doc/src/sgml/ref/set.sgml
+++ b/doc/src/sgml/ref/set.sgml
@@ -1,5 +1,5 @@
 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.35 2000/03/31 17:45:32 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.36 2000/04/07 13:31:18 thomas Exp $
 Postgres documentation
 -->
 
@@ -201,6 +201,44 @@ SET TRANSACTION ISOLATION LEVEL { READ COMMITTED | SERIALIZABLE }
       </listitem>
      </varlistentry>
 
+     <varlistentry>
+      <term>Seed</term>
+      <listitem>
+       <para>
+       Sets the internal seed for the random number generator.
+       
+       <variablelist>
+        <varlistentry>
+         <term><replaceable class="parameter">value</replaceable></term>
+         <listitem>
+          <para>
+           The value for the seed to be used by the
+           <function>random</function> catalog function. Significant
+           values are floating point numbers between 0 and 1, which
+           are then multiplied by RAND_MAX. This product will
+           silently overflow if a number outside the range is used.
+          </para>
+
+          <para>
+           The seed can also be set by invoking the
+           <function>setseed</function> SQL function:
+
+           <programlisting>
+SELECT setseed(<replaceable>value</replaceable>);
+           </programlisting>
+          </para>
+         </listitem>
+        </varlistentry>
+       </variablelist>
+       </para>
+
+       <para>
+       This option is only available if MULTIBYTE support was enabled
+       during the configure step of building Postgres.
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry>
       <term>SERVER_ENCODING</term>
       <listitem>