Add another example (#218)

git-svn-id: http://svn.osgeo.org/postgis/trunk@4855 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_editor.xml b/doc/reference_editor.xml
index 72baba965cd5556530af73243e134cf0ce3772ad..4228507cfa6ea9387612e8351dbdf05103c8bea7 100644 (file)
--- a/doc/reference_editor.xml
+++ b/doc/reference_editor.xml
@@ -643,6 +643,12 @@ SELECT ST_AsText(ST_CollectionExtract(ST_GeomFromText('GEOMETRYCOLLECTION(GEOMET
 st_astext
 ---------------
 MULTIPOINT(0 0)
+(1 row)
+
+SELECT ST_AsText(ST_CollectionExtract(ST_GeomFromText('GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(LINESTRING(0 0, 1 1)),LINESTRING(2 2, 3 3))'),2));
+st_astext
+---------------
+MULTILINESTRING((0 0, 1 1), (2 2, 3 3))
 (1 row)
                        </programlisting>
                </refsection>