-<!-- $PostgreSQL: pgsql/doc/src/sgml/intarray.sgml,v 1.5 2007/12/10 05:32:51 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/intarray.sgml,v 1.6 2009/03/18 20:18:18 tgl Exp $ -->
<sect1 id="intarray">
<title>intarray</title>
<para>
Two GiST index operator classes are provided:
<literal>gist__int_ops</> (used by default) is suitable for
- small and medium-size arrays, while
+ small- to medium-size data sets, while
<literal>gist__intbig_ops</> uses a larger signature and is more
- suitable for indexing large arrays.
+ suitable for indexing large data sets (i.e., columns containing
+ a large number of distinct array values).
</para>
<para>