The following bug has been logged on the website:
Bug reference: 11353
Logged by: Andreas Papst
Email address: andreas(dot)papst(at)univie(dot)ac(dot)at
PostgreSQL version: 9.1.14
Operating system: Debian 7
Description:
db=> SET AUTOCOMMIT = OFF
db=> ;
ERROR: SET AUTOCOMMIT TO OFF is no longer supported