-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/indices.sgml,v 1.17 2001/05/17 21:50:16 petere Exp $ -->
+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/indices.sgml,v 1.18 2001/05/22 16:00:00 petere Exp $ -->
<chapter id="indexes">
- <title id="indexes-title">Indices</title>
+ <title id="indexes-title">Indexes</title>
<indexterm zone="indexes">
<primary>indexes</primary>
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/sql.sgml,v 1.20 2001/03/24 23:03:26 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/sql.sgml,v 1.21 2001/05/22 16:00:00 petere Exp $
-->
<chapter id="sql">
<title>Create Index</title>
<para>
- Indices are used to speed up access to a relation. If a relation <classname>R</classname>
+ Indexes are used to speed up access to a relation. If a relation <classname>R</classname>
has an index on attribute <classname>A</classname> then we can
retrieve all tuples <replaceable>t</replaceable>
having