diff --git a/pgsql/pointcloud--1.0.sql b/pgsql/pointcloud--1.0.sql
index 6459ece..b5339be 100644
--- a/pgsql/pointcloud--1.0.sql
+++ b/pgsql/pointcloud--1.0.sql
@@ -135,6 +135,10 @@ CREATE OR REPLACE FUNCTION PC_NumPoints(p pcpatch)
     RETURNS int4 AS 'MODULE_PATHNAME', 'pcpatch_numpoints'
     LANGUAGE 'c' IMMUTABLE STRICT;
 
+CREATE OR REPLACE FUNCTION PC_Compression(p pcpatch)
+    RETURNS int4 AS 'MODULE_PATHNAME', 'pcpatch_compression'
+    LANGUAGE 'c' IMMUTABLE STRICT;
+
 CREATE OR REPLACE FUNCTION PC_Intersects(p1 pcpatch, p2 pcpatch)
     RETURNS boolean AS 'MODULE_PATHNAME', 'pcpatch_intersects'
     LANGUAGE 'c' IMMUTABLE STRICT;