On Fri, 2024-11-29 at 13:39 +0100, Peter Gram wrote: > I would like to say in this way : Many clients like psql set autocommit on as default. > It is up to the client to define the default and there are clients that default to autocommit off. The server is always in autocommit mode. Clients can fake "autocommit off" by tacitly sending transaction control statements. Yours, Laurenz Albe