     language environment, including data types and functions, as well
     as user-level performance tuning.  Every
     <span class="productname">PostgreSQL</span> user should read this.
    </p></li><li class="listitem"><p>
     <a class="xref" href="admin.html" title="Part III. Server Administration">Part III</a> describes the installation and
     administration of the server.  Everyone who runs a
     <span class="productname">PostgreSQL</span> server, be it for private
     use or for others, shou