diff --git a/.gitignore b/.gitignore
index 16d9ab5..3cf5f35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 cartodb_services.egg-info/
 build/
 dist/
+.vscode/
diff --git a/client/cdb_dataservices_client--0.20.0--0.21.0.sql b/client/cdb_dataservices_client--0.20.0--0.21.0.sql
index 495deda..048f415 100644
--- a/client/cdb_dataservices_client--0.20.0--0.21.0.sql
+++ b/client/cdb_dataservices_client--0.20.0--0.21.0.sql
@@ -66,3 +66,7 @@ BEGIN
   END;
 END;
 $$ LANGUAGE 'plpgsql' SECURITY DEFINER;
+
+DROP FUNCTION cdb_dataservices_client.obs_getavailablegeometries (geometry(Geometry, 4326), text[], text, text, text);
+DROP FUNCTION cdb_dataservices_client._obs_getavailablegeometries_exception_safe (geometry(Geometry, 4326), text[], text, text, text);
+DROP FUNCTION cdb_dataservices_client._obs_getavailablegeometries (text, text, geometry(Geometry, 4326), text[], text, text, text);
diff --git a/client/cdb_dataservices_client--0.21.0--0.20.0.sql b/client/cdb_dataservices_client--0.21.0--0.20.0.sql
index 55b6f37..a072d9a 100644
--- a/client/cdb_dataservices_client--0.21.0--0.20.0.sql
+++ b/client/cdb_dataservices_client--0.21.0--0.20.0.sql
@@ -60,3 +60,6 @@ BEGIN
 END;
 $$ LANGUAGE 'plpgsql' SECURITY DEFINER;
 
+DROP FUNCTION cdb_dataservices_client.obs_getavailablegeometries (geometry(Geometry, 4326), text[], text, text, text, integer);
+DROP FUNCTION cdb_dataservices_client._obs_getavailablegeometries_exception_safe (geometry(Geometry, 4326), text[], text, text, text, integer);
+DROP FUNCTION cdb_dataservices_client._obs_getavailablegeometries (text, text, geometry(Geometry, 4326), text[], text, text, text, integer);
diff --git a/server/extension/cdb_dataservices_server--0.27.0--0.28.0.sql b/server/extension/cdb_dataservices_server--0.27.0--0.28.0.sql
index a83156b..a3f1842 100644
--- a/server/extension/cdb_dataservices_server--0.27.0--0.28.0.sql
+++ b/server/extension/cdb_dataservices_server--0.27.0--0.28.0.sql
@@ -16,3 +16,4 @@ RETURNS SETOF cdb_dataservices_server.obs_meta_geometry AS $$
   CONNECT cdb_dataservices_server._obs_server_conn_str(username, orgname);
   SELECT * FROM cdb_observatory.OBS_GetAvailableGeometries(bounds, filter_tags, numer_id, denom_id, timespan, number_geometries);
 $$ LANGUAGE plproxy;
+DROP FUNCTION cdb_dataservices_server.OBS_GetAvailableGeometries(TEXT, TEXT, geometry(Geometry, 4326), TEXT[], TEXT, TEXT, TEXT);
diff --git a/server/extension/cdb_dataservices_server--0.28.0--0.27.0.sql b/server/extension/cdb_dataservices_server--0.28.0--0.27.0.sql
index aa8b0f0..20207e8 100644
--- a/server/extension/cdb_dataservices_server--0.28.0--0.27.0.sql
+++ b/server/extension/cdb_dataservices_server--0.28.0--0.27.0.sql
@@ -15,3 +15,4 @@ RETURNS SETOF cdb_dataservices_server.obs_meta_geometry AS $$
   CONNECT cdb_dataservices_server._obs_server_conn_str(username, orgname);
   SELECT * FROM cdb_observatory.OBS_GetAvailableGeometries(bounds, filter_tags, numer_id, denom_id, timespan);
 $$ LANGUAGE plproxy;
+DROP FUNCTION cdb_dataservices_server.OBS_GetAvailableGeometries(TEXT, TEXT, geometry(Geometry, 4326), TEXT[], TEXT, TEXT, TEXT, INTEGER);
diff --git a/server/extension/test/expected/100_data_observatory_test.out b/server/extension/test/expected/100_data_observatory_test.out
index 8f95ba1..1a5fd7a 100644
--- a/server/extension/test/expected/100_data_observatory_test.out
+++ b/server/extension/test/expected/100_data_observatory_test.out
@@ -245,7 +245,7 @@ SELECT exists(SELECT *
               INNER JOIN pg_namespace ns ON (p.pronamespace = ns.oid)
               WHERE ns.nspname = 'cdb_dataservices_server'
               AND proname = 'obs_getavailablegeometries'
-              AND oidvectortypes(p.proargtypes)  = 'text, text, geometry, text[], text, text, text');
+              AND oidvectortypes(p.proargtypes)  = 'text, text, geometry, text[], text, text, text, integer');
  exists 
 --------
  t
diff --git a/server/extension/test/sql/100_data_observatory_test.sql b/server/extension/test/sql/100_data_observatory_test.sql
index b576add..200024b 100644
--- a/server/extension/test/sql/100_data_observatory_test.sql
+++ b/server/extension/test/sql/100_data_observatory_test.sql
@@ -157,7 +157,7 @@ SELECT exists(SELECT *
               INNER JOIN pg_namespace ns ON (p.pronamespace = ns.oid)
               WHERE ns.nspname = 'cdb_dataservices_server'
               AND proname = 'obs_getavailablegeometries'
-              AND oidvectortypes(p.proargtypes)  = 'text, text, geometry, text[], text, text, text');
+              AND oidvectortypes(p.proargtypes)  = 'text, text, geometry, text[], text, text, text, integer');
 
 SELECT exists(SELECT *
               FROM pg_proc p