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Re: How do I get the SQL statement in a trigger?

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2018-05-10 12:42 GMT+02:00 a <372660931@xxxxxx>:
Thanks a lot, would you please be so kind to tell me more about what is top level query??

for example - if you run some queries from PLpgSQL functions (triggers), then these queries are not top queries.

Regards

Pavel
 


------------------ Original message ------------------
From: "Pavel Stehule";
Sendtime: Thursday, May 10, 2018 6:38 PM
To: "a"<372660931@xxxxxx>;
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 <372660931@xxxxxx>:
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



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