git-svn-id: http://svn.osgeo.org/postgis/trunk@4514 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/using_postgis_dataman.xml b/doc/using_postgis_dataman.xml
index 613684bbcf5cba245ba1d2683149266895ef9601..313c3ec2acdaec274013743ef3d0d324784d3de5 100644 (file)
--- a/doc/using_postgis_dataman.xml
+++ b/doc/using_postgis_dataman.xml
@@ -176,7 +176,8 @@ geometry
         <!-- TODO: Fill in more information -->
 
          <para>The main restriction is that it only supports WGS 84 long lat (SRID:4326).  It uses a new data type called
-         geography.</para>
+         geography.  It also has a much fewer set of functions than the geometry type.  None of the GEOS functions support this new
+         type. As  a workaround one can convert back and forth between geometry and geography types.</para>
 
          <para>The new geography type uses the PostgreSQL 8.3+ typmod definition format so that a table with a geography field
                        can be added in a single step.  All the standard OGC formats except for curves are supported.</para>