PostgreSQL查看DB中trigger

b2c_product=# select
        t.tgname,
        n.nspname,
        c.relname,
        p.proname
from
        pg_trigger t
join
        pg_class c
  on
        t.tgrelid = c.oid
join
        pg_namespace n
  on
        c.relnamespace = n.oid
join
        pg_proc p
  on
        t.tgfoid = p.oid
where
        t.tgisinternal = 'f'
;
                    tgname                     | nspname |         relname          |           proname            
-----------------------------------------------+---------+--------------------------+------------------------------
 b2c_order_xxx_trigger           | public  | b2c_order_yyy    | check_refund_zzz

注意：

如果直接用如下SQL语句，会查找出来的包括所有系统中的触发器（比如CHECK外键的trigger）！

所以上述SQL中加了限制trigger.tgisinternal = 'f'，

select tgname,pg_class.relname,pg_proc.proname
from ( pg_trigger join pg_class on tgrelid=pg_class.oid )
join pg_proc on tgfoid=pg_proc.oid;

最后,使用

\d   relname 
\sf  proname ()