pg_event_trigger_ddl_commands after GRANT is quite empty

[StMUK]

Dear Postgres Community,

pg_event_trigger_ddl_commands after GRANT is quite empty.

If I execute: GRANT SELECT ON TABLE t TO r;

. and in a trigger function I have:

        SELECT classid, objid, objsubid, command_tag, object_type, schema_name, 
object_identity
        FROM pg_event_trigger_ddl_commands();

This gives me:

        null, null, null, GRANT, TABLE, null, null


How to find out the table involved and the privileges?


Regards,
Franz-Josef Färber