about it addresses the matter. -- apotheon 07:00, 20 November 2008 (UTC) Maybe this is because PostgreSQL does not have true SERIALIZABLE isolation level, but SNAPSHOT instead. 91.192.173.242 10:49, 6 August 2009 (UTC) Since 9.1 PostgreSQL has true SERIALIZABLE http://www.postgresql.org/docs/current/static/transaction-iso.html#XACT-SERIALIZABLE [ edit ] Missing: SQL conformity A very important thing to