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Message-ID: <bf759988-5f40-4280-855e-2d0cbe2f41b0@aklaver.com>
Date: Fri, 7 Feb 2025 09:07:35 -0800
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Subject: Re: How to get a notification
To: Igor Korot <ikorot01@gmail.com>,
 "pgsql-generallists.postgresql.org" <pgsql-general@lists.postgresql.org>
References: <CA+FnnTw1fUZz8=4gqKFgfXw2RePNxpy1JjcPtD2w3vh6mdXhQw@mail.gmail.com>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <CA+FnnTw1fUZz8=4gqKFgfXw2RePNxpy1JjcPtD2w3vh6mdXhQw@mail.gmail.com>
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On 2/5/25 23:21, Igor Korot wrote:
> Hi, ALL,
> In my code I'm running following:
> 
>              queries.push_back( L"CREATE FUNCTION
> __watch_schema_changes() RETURNS event_trigger LANGUAGE plpgsql AS $$
> BEGIN NOTIFY tg_tag; END; $$;" );
>              queries.push_back( L"CREATE EVENT TRIGGER
> schema_change_notify ON ddl_command_end WHEN TAG IN(\'CREATE TABLE\',
> \'ALTER TABLE\', \'DROP TABLE\', \'CREATE INDEX\', \'DROP INDEX\')
> EXECUTE PROCEDURE __watch_schema_changes();" );
> 
> My questions are:
> 1 Is there a better way to get notification about CREATE/ALTER/DROP TABLE?

An alternate solution:

https://www.pgaudit.org/

Whether it is better or not is something you will need to decide.

> 2. How do I receive notification abut the event with the object name?

Use information from here?:

https://www.postgresql.org/docs/current/functions-event-triggers.html#PG-EVENT-TRIGGER-DDL-COMMAND-END-FUNCTIONS

> 
> Thank you.
> 
> 

-- 
Adrian Klaver
adrian.klaver@aklaver.com