On 2/7/25 11:02 AM, Igor Korot wrote: > Hi, Adrian, > > On Fri, Feb 7, 2025 at 11:07 AM Adrian Klaver <adrian.klaver@aklaver.com> wrote: >> >> 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 > > Thx for the link > So basically all I need to do is to call > > SELECT pg_event_trigger_ddl_commands ()
And then unpack the information it returns.
> > right? > > In both ODBC amd libpq interfaces?
It is not about the interface it is about, from link above:
"pg_event_trigger_ddl_commands returns a list of DDL commands executed by each user action, when invoked in a function attached to a ddl_command_end event trigger."
Is there a sample code i can look at?
Also what is PostgreSQL version this function is introduced?
