reference to st_valuecount in st_dumpaspixels

git-svn-id: http://svn.osgeo.org/postgis/trunk@7286 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_raster.xml b/doc/reference_raster.xml
index dddfb216248c8541b2d86b3c4354e3348fc8025b..10355b003cf96abd0a000e0fd0415e9cb1948867 100644 (file)
--- a/doc/reference_raster.xml
+++ b/doc/reference_raster.xml
@@ -3738,6 +3738,7 @@ FROM (SELECT ST_SetRotation(rast,0.1,0.1) As rast
        
                                <para>Availability: Requires GDAL 1.7 or higher.</para>
                                <note><para>If there is a no data value set for a band, pixels with that value will not be returned.</para></note>
+                               <note><para>If you only care about count of pixels with a given value in a raster, it is faster to use <xref linkend="RT_ST_ValueCount" />.</para></note>
                  </refsection>
        
                  <refsection>
@@ -3765,7 +3766,7 @@ ORDER BY val;
                  </refsection>
                  <refsection>
                        <title>See Also</title>
-                       <para><xref linkend="geomval" />,,<xref linkend="RT_ST_Value" />, <xref linkend="RT_ST_Polygon" /></para>
+                       <para><xref linkend="geomval" />,<xref linkend="RT_ST_Value" />, <xref linkend="RT_ST_Polygon" />, <xref linkend="RT_ST_ValueCount" /></para>
                  </refsection>
                </refentry>