すべてのユーザテーブルのトリガについて、トリガ名と定義を調べるSQL

すべてのユーザテーブルのトリガについて、トリガ名と定義を調べるSQLは、

SELECT
    n.nspname || '.' || c.relname AS table,
    t.tgname AS trigger,
    pg_get_triggerdef(t.oid, true) AS definition
FROM
    pg_trigger t,
    pg_class c,
    pg_namespace n
WHERE
    t.tgrelid = c.oid AND
    c.relnamespace = n.oid AND
    c.relkind = 'r' AND
    n.nspname <> 'pg_catalog' AND
    n.nspname <> 'information_schema' AND
    n.nspname !~ '^pg_toast'
ORDER BY
    n.nspname,
    c.relname,
    t.tgname;