#2208 : document that ST_PointN no longer works with first linestring of multilinestring

git-svn-id: http://svn.osgeo.org/postgis/trunk@11103 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_accessor.xml b/doc/reference_accessor.xml
index 909596619bdd531d54fc7ca2aa7fe8ab023b5a2d..d9106846584fd2b33820446373d5e81890644bc3 100644 (file)
--- a/doc/reference_accessor.xml
+++ b/doc/reference_accessor.xml
@@ -1909,7 +1909,7 @@ VALUES (ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 1, 0 1 0, 0 0 0)
          <refsection>
                <title>Description</title>
 
-               <para>Return the Nth point in the first linestring or circular linestring in the
+               <para>Return the Nth point in a single linestring or circular linestring in the
                        geometry. Return NULL if there is no linestring in the
                        geometry.</para>
 
@@ -1927,6 +1927,9 @@ VALUES (ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 1, 0 1 0, 0 0 0)
                <para>&sqlmm_compliant; SQL-MM 3: 7.2.5, 7.3.5</para>
                <para>&Z_support;</para>
                <para>&curve_support;</para>
+               <note><para>Changed: 2.0.0 no longer works with single geometry multilinestrings.  In older
+         versions of PostGIS -- a single line multilinestring would work happily with this
+         function and return the start point.  In 2.0.0 it just returns NULL like any other multilinestring.</para></note>
 
          </refsection>