Thanks a lot, would you please be so kind to tell me more about what is top level query??
------------------ Original message ------------------ From: "Pavel Stehule"; Sendtime: Thursday, May 10, 2018 6:38 PM To: "a"<372660...@qq.com>; Cc: "pgsql-general"; Subject: Re: How do I get the SQL statement in a trigger? Hi 2018-05-10 12:23 GMT+02:00 a <372660...@qq.com>: Hi I would like to write a trigger that recorded every sql statement under the effected entry. So if it is possible to retrieve the sql statement within a trigger?? You can read a tom command from pg_stat_activity table postgres=# select query from pg_stat_activity where pid = pg_backend_pid(); +------------------------------------------------------------------+ | query | +------------------------------------------------------------------+ | select query from pg_stat_activity where pid = pg_backend_pid(); | +------------------------------------------------------------------+ (1 row) But this information is available only for top level query. Regards Pavel