Routing server side working properly

server/extension/test/0.4.0/sql/85_isodistance_test.sql

@@ -0,0 +1,7 @@
+-- Check for isodistance signatures
+SELECT exists(SELECT *
+              FROM pg_proc p
+              INNER JOIN pg_namespace ns ON (p.pronamespace = ns.oid)
+              WHERE ns.nspname = 'cdb_dataservices_server'
+              AND proname = 'cdb_isodistance'
+              AND oidvectortypes(p.proargtypes)  = 'text, text, geometry, text, integer[], text[]');