Different search paths of SECURITY DEFINER functions

SELECT 
  array_to_string(proconfig, ',') AS search_path,
  Count(*) AS nr_of_occurrences
FROM 
  pg_catalog.pg_proc, 
  pg_catalog.pg_namespace
WHERE 
  pg_proc.pronamespace = pg_namespace.oid
 AND prosecdef=TRUE
AND pg_namespace.nspname NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL)
GROUP BY array_to_string(proconfig, ',')
ORDER BY Count(*) DESC;