From ac58e8af0b78a096e3159426aa44adbe9db4453a Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@keybit.net>
Date: Mon, 16 Jan 2012 14:46:03 +0000
Subject: [PATCH] Add ST_EWKT for geography type (#675)

git-svn-id: http://svn.osgeo.org/postgis/trunk@8844 b70326c6-7e19-0410-871a-916f4a2858ee
---
 doc/reference_output.xml   | 6 +++++-
 postgis/geography.sql.in.c | 6 ++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/doc/reference_output.xml b/doc/reference_output.xml
index 3a2d1607e..e5ec9ad68 100644
--- a/doc/reference_output.xml
+++ b/doc/reference_output.xml
@@ -191,6 +191,10 @@
 				<funcdef>text <function>ST_AsEWKT</function></funcdef>
 				<paramdef><type>geometry </type> <parameter>g1</parameter></paramdef>
 			  </funcprototype>
+			  <funcprototype>
+				<funcdef>text <function>ST_AsEWKT</function></funcdef>
+				<paramdef><type>geography </type> <parameter>g1</parameter></paramdef>
+			  </funcprototype>
 			</funcsynopsis>
 		  </refsynopsisdiv>
 
@@ -208,7 +212,7 @@
 			<note>
 			  <para>ST_AsEWKT is the reverse of <xref linkend="ST_GeomFromEWKT" />.  Use <xref linkend="ST_GeomFromEWKT" /> to convert to a postgis geometry from ST_AsEWKT representation.</para>
 			</note>
-			<para>Enhanced: 2.0.0 support for Polyhedral surfaces, Triangles and TIN was introduced.</para>
+			<para>Enhanced: 2.0.0 support for Geography, Polyhedral surfaces, Triangles and TIN was introduced.</para>
 			<para>&Z_support;</para>
 			<para>&curve_support;</para>
 			<para>&P_support;</para>
diff --git a/postgis/geography.sql.in.c b/postgis/geography.sql.in.c
index dd0fe34c7..1903e838a 100644
--- a/postgis/geography.sql.in.c
+++ b/postgis/geography.sql.in.c
@@ -670,6 +670,12 @@ CREATE OR REPLACE FUNCTION ST_AsBinary(geography,text)
 	RETURNS bytea AS
 	$$ SELECT ST_AsBinary($1::geometry, $2);  $$
 	LANGUAGE 'SQL' IMMUTABLE STRICT;
+
+-- Availability: 2.0.0
+CREATE OR REPLACE FUNCTION ST_AsEWKT(geography)
+	RETURNS TEXT
+	AS 'MODULE_PATHNAME','LWGEOM_asEWKT'
+	LANGUAGE 'C' IMMUTABLE STRICT;
 	
 -----------------------------------------------------------------------------
 
-- 
2.40.0