Added notice about availability of shorter syntax for estimated_extent()

git-svn-id: http://svn.osgeo.org/postgis/trunk@1131 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/postgis.xml b/doc/postgis.xml
index 8153822d79cccbf41113b9254a0456be7745c5bd..0707fc864dcb6ac1009eaaae0c39080fef3a6954 100644 (file)
--- a/doc/postgis.xml
+++ b/doc/postgis.xml
@@ -3850,14 +3850,15 @@ FROM geometry_table;</literallayout>
         </varlistentry>
 
         <varlistentry>
-          <term>estimated_extent(schema, table, geocolumn)</term>
+          <term>estimated_extent([schema], table, geocolumn)</term>
 
           <listitem>
             <para>
            Return the 'estimated' extent of the given spatial table.
            The estimated is taken from the geometry column's statistics
            gathered by running VACUUM ANALYZE, and is statistically 
-           about 95% of 'real' extent.
+           about 95% of 'real' extent. The current schema will be
+           used if not specified.
             </para>
             <para>NOTE: This is only available with PostgreSQL >= 8.0.0</para>
           </listitem>