Be more clear about when to use gist__int_ops vs. gist__intbig_ops.

Per suggestion from Ron Mayer.

1 files changed, 3 insertions, 2 deletions

diff --git a/doc/src/sgml/intarray.sgml b/doc/src/sgml/intarray.sgml
index 9238a5c9c2..f482432f87 100644
--- a/doc/src/sgml/intarray.sgml
+++ b/doc/src/sgml/intarray.sgml
@@ -237,9 +237,10 @@
   <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>