ODBC fails to recognize event trigger removal

Hi, ALL,

[code]
postgres=# CREATE OR REPLACE FUNCTION __watch_schema_changes() RETURNS
event_trigger LANGUAGE plpgsql AS $$ BEGIN NOTIFY tg_tag; END; $$;
CREATE FUNCTION
postgres=# 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();
CREATE EVENT TRIGGER
postgres=# DROP EVENT TRIGGER schema_change_notify CASCADE;
DROP EVENT TRIGGER
postgres=# \q
igor(at)WaylandGnome ~/unixODBC-2.3.12 $ isql postgres postgres wasqra123
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| echo [string] |
| quit |
| |
+---------------------------------------+
SQL> CREATE OR REPLACE FUNCTION __watch_schema_changes() RETURNS
event_trigger LANGUAGE plpgsql AS $$ BEGIN NOTIFY tg_tag; END; $$;
SQLRowCount returns -1
SQL> 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();
[ISQL]ERROR: Could not SQLExecute
SQL> quit
igor(at)WaylandGnome ~/unixODBC-2.3.12 $
[/code]

Server version 16.2
Driver version 11.1

Anybody aware of this?

Thank you.