Generate string of function names installed by PostgreSQL extensions, for filtering *out* in DBeaver UI

generate_dbeaver_function_name_exclude_filter.sql

-- Filters function names from extensions: postgis, btree_gist, fuzzystrmatch
with function_names (name) as (SELECT
  p.proname as function_name
FROM
  pg_catalog.pg_extension AS e
INNER JOIN pg_catalog.pg_depend AS d ON (d.refobjid = e.oid)
INNER JOIN pg_catalog.pg_proc AS p ON (p.oid = d.objid)
INNER JOIN pg_catalog.pg_namespace AS ne ON (ne.oid = e.extnamespace)
INNER JOIN pg_catalog.pg_namespace AS np ON (np.oid = p.pronamespace)
WHERE
  d.deptype = 'e'
  AND
  (
      e.extname = 'postgis'
      OR
      e.extname = 'btree_gist'
      OR
      e.extname = 'fuzzystrmatch'
  )
ORDER BY
  function_name
)
select array_to_string(
  array(select * from function_names),
  '|'
);