Perhaps a too long PL/pgSQL routine

WITH pl_pgsql_routine AS (SELECT 
  pg_namespace.nspname AS routine_schema, 
  pg_proc.proname AS routine_name, 
  pg_get_function_identity_arguments(pg_proc.oid) AS parameters,
  CASE WHEN pg_proc.prokind='f' THEN 'FUNCTION'
  WHEN pg_proc.prokind='p' THEN 'PROCEDURE'
  WHEN pg_proc.prokind='a' THEN 'AGGREGATE FUNCTION'
  WHEN pg_proc.prokind='w' THEN 'WINDOW FUNCTION' END AS routine_type,
  regexp_replace(pg_proc.prosrc,'[\r\n]','<br>','g')  AS routine_src,
  length(pg_proc.prosrc)-length(replace(pg_proc.prosrc,E'\n',''))-1 AS physical_lines_of_code
FROM 
  pg_catalog.pg_proc, 
  pg_catalog.pg_namespace,
  pg_catalog.pg_language
WHERE 
  pg_proc.pronamespace = pg_namespace.oid AND
  pg_proc.prolang = pg_language.oid AND
    pg_language.lanname='plpgsql' AND
   pg_proc.proname NOT IN ('f_assume_you_must_use_files', 'f_check_format_comma_separated_list', 'f_check_password', 'f_default_value_with_no_match') 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) AND NOT EXISTS (SELECT 1
FROM pg_catalog.pg_depend d 
WHERE EXISTS (SELECT 1 FROM pg_catalog.pg_extension e WHERE d.refobjid=e.oid) AND
d.objid=pg_proc.oid))
SELECT routine_schema, routine_name, parameters, routine_type, routine_src, physical_lines_of_code
FROM pl_pgsql_routine
WHERE physical_lines_of_code>40
ORDER BY physical_lines_of_code DESC, routine_schema, routine_name, parameters;