Correct some errors and do some SGML police work on the reference pages

for REASSIGN OWNED and DROP OWNED.

doc/src/sgml/ref/drop_owned.sgml

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-$PostgreSQL: pgsql/doc/src/sgml/ref/drop_owned.sgml,v 1.1 2005/11/21 12:49:30 alvherre Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/drop_owned.sgml,v 1.2 2006/04/02 04:02:40 neilc Exp $
 PostgreSQL documentation
 -->
 
@@ -20,7 +20,7 @@ PostgreSQL documentation
 
  <refsynopsisdiv>
 <synopsis>
-DROP OWNED <replaceable class="PARAMETER">name</replaceable> [, ...] [ RESTRICT | CASCADE ]
+DROP OWNED BY <replaceable class="PARAMETER">name</replaceable> [, ...] [ RESTRICT | CASCADE ]
 </synopsis>
  </refsynopsisdiv>
 
@@ -28,36 +28,68 @@ DROP OWNED <replaceable class="PARAMETER">name</replaceable> [, ...] [ RESTRICT
   <title>Description</title>
 
   <para>
-   The <command>DROP OWNED</command> instructs the system to drop those
-   database objects owned by one of the given roles which reside on the
-   current database.  All privileges granted to the given roles will also be
-   revoked.
+   <command>DROP OWNED</command> drops all the objects in the current
+   database that are owned by one of the specified roles. Any
+   privileges granted to the given roles on objects in the current
+   database will also be revoked.
   </para>
+ </refsect1>
 
-  <para>
-   If <literal>CASCADE</> is specified, <command>DROP OWNED</command>
-   will behave like a <command>DROP ... CASCADE</command> was issued
-   for each object, that is, objects dependent on the ones owned by the
-   given users will be dropped as well.  
-  </para>
+ <refsect1>
+  <title>Parameters</title>
+
+  <variablelist>
+   <varlistentry>
+    <term><replaceable class="PARAMETER">name</replaceable></term>
+    <listitem>
+     <para>
+      The name of a role whose objects will be dropped, and whose
+      privileges will be revoked.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term><literal>CASCADE</literal></term>
+    <listitem>
+     <para>
+      Automatically drop objects that depend on the affected objects.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term><literal>RESTRICT</literal></term>
+    <listitem>
+     <para>
+      Refuse to drop the objects owned by a role if any other database
+      objects depend on one of the affected objects. This is the default.
+     </para>
+    </listitem>
+   </varlistentry>
+  </variablelist>
  </refsect1>
 
  <refsect1>
   <title>Notes</title>
   <para>
-   The <command>DROP OWNED</command> command is mostly used in preparation to
-   drop the roles.  It may be necessary to issue the command in more than one
-   database.
+   <command>DROP OWNED</command> is often used to prepare for the
+   removal of one or more roles. Because <command>DROP OWNED</command>
+   only affects the objects in the current database, it is usually
+   necessary to execute this command in each database that contains
+   objects owned by a role that is to be removed.
   </para>
 
   <para>
-   Using the <literal>CASCADE</literal> option may make the command recurse to
-   objects owned by other users.
+   Using the <literal>CASCADE</literal> option may make the command
+   recurse to objects owned by other users.
   </para>
 
   <para>
-   See the <command>REASSIGN OWNED</command> command for an alternative that
-   gives the objects away to another role.
+   The <xref linkend="sql-reassign-owned"
+   endterm="sql-reassign-owned-title"> command is an alternative that
+   reassigns the ownership of all the database objects owned by one or
+   more roles.
   </para>
  </refsect1>
 

doc/src/sgml/ref/drop_role.sgml

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-$PostgreSQL: pgsql/doc/src/sgml/ref/drop_role.sgml,v 1.3 2006/02/04 22:38:39 tgl Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/drop_role.sgml,v 1.4 2006/04/02 04:02:40 neilc Exp $
 PostgreSQL documentation
 -->
 
@@ -38,7 +38,10 @@ DROP ROLE [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> [, ...
    A role cannot be removed if it is still referenced in any database
    of the cluster; an error will be raised if so.  Before dropping the role,
    you must drop all the objects it owns (or reassign their ownership)
-   and revoke any privileges the role has been granted.
+   and revoke any privileges the role has been granted. The <xref
+   linkend="sql-reassign-owned" endterm="sql-reassign-owned-title">
+   and <xref linkend="sql-drop-owned" endterm="sql-drop-owned-title">
+   commands can be useful for this purpose.
   </para>
 
   <para>

doc/src/sgml/ref/reassign_owned.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/ref/reassign_owned.sgml,v 1.1 2005/11/21 12:49:30 alvherre Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/reassign_owned.sgml,v 1.2 2006/04/02 04:02:40 neilc Exp $
 PostgreSQL documentation
 -->
 
@@ -11,7 +11,7 @@ PostgreSQL documentation
 
  <refnamediv>
   <refname>REASSIGN OWNED</refname>
-  <refpurpose>change ownership of database objects owned by a database role</refpurpose>
+  <refpurpose>change the ownership of database objects owned by a database role</refpurpose>
  </refnamediv>
 
  <indexterm zone="sql-reassign-owned">
@@ -20,7 +20,7 @@ PostgreSQL documentation
 
  <refsynopsisdiv>
 <synopsis>
-REASSIGN OWNED <replaceable class="PARAMETER">old_role</replaceable> [, ...] TO <replaceable class="PARAMETER">new_role</replaceable>
+REASSIGN OWNED BY <replaceable class="PARAMETER">old_role</replaceable> [, ...] TO <replaceable class="PARAMETER">new_role</replaceable>
 </synopsis>
  </refsynopsisdiv>
 
@@ -28,25 +28,61 @@ REASSIGN OWNED <replaceable class="PARAMETER">old_role</replaceable> [, ...] TO
   <title>Description</title>
 
   <para>
-   The <command>REASSIGN OWNED</command> instructs the system to change
-   the ownership of the database objects owned by one of the old_roles,
-   to new_role.
+   <command>REASSIGN OWNED</command> instructs the system to change
+   the ownership of the database objects owned by one of the
+   old_roles, to new_role.
   </para>
  </refsect1>
 
+ <refsect1>
+  <title>Parameters</title>
+
+  <variablelist>
+   <varlistentry>
+    <term><replaceable class="PARAMETER">old_role</replaceable></term>
+    <listitem>
+     <para>
+      The name of a role. The ownership of all the objects in the
+      current database owned by this role will be reassigned to
+      <replaceable class="PARAMETER">new_role</replaceable>.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term><replaceable class="PARAMETER">new_role</replaceable></term>
+    <listitem>
+     <para>
+      The name of the role that will be made the new owner of the
+      affected objects.
+     </para>
+    </listitem>
+   </varlistentry>
+  </variablelist>
+ </refsect1>
+
  <refsect1>
   <title>Notes</title>
 
   <para>
-   The <command>REASSIGN OWNED</command> command is mostly used in preparation to
-   drop the roles.  See the <command>DROP OWNED</command> command for an
-   alternative that drops the objects.
+   <command>REASSIGN OWNED</command> is often used to prepare for the
+   removal of one or more roles. Because <command>REASSIGN
+   OWNED</command> only affects the objects in the current database,
+   it is usually necessary to execute this command in each database
+   that contains objects owned by a role that is to be removed.
+  </para>
+
+  <para>
+   The <xref linkend="sql-drop-owned"
+    endterm="sql-drop-owned-title"> command is an alternative that
+   drops all the database objects owned by one or more roles.
   </para>
 
   <para>
-   The <command>REASSIGN OWNED</command> command does not affect the privileges
-   granted to the old_roles in objects not owned by them.  Use
-   <command>DROP OWNED</command> to remove them.
+   The <command>REASSIGN OWNED</command> command does not affect the
+   privileges granted to the old_roles in objects that are not owned
+   by them.  Use <command>DROP OWNED</command> to revoke those
+   privileges.
   </para>
 
  </refsect1>