Re: ODBC fails to recognize event trigger removal

On 11/23/25 04:44, Igor Korot wrote:
> 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?

1) There is a Postgres list dedicated to the ODBC driver:

https://www.postgresql.org/list/pgsql-odbc/

You should probably ask these sort of questions there.

2) I have to believe the below is the issue:

Server version 16.2
Driver version 11.1

Given that the most recent current driver is REL-17_00_0006 and from here:

https://github.com/postgresql-interfaces/psqlodbc/tree/REL-11_01_0000

The 11.1 driver was released 6 years ago which predates the release of
Postgres 16 by ~4.5 years.

>
> Thank you.
>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com