in Section 13.2.3 of the 9.1 docs [1], the follow sentence fragment can be found:
"using Serializable transactions will allow one transaction to commit and and will roll the other back" Note the double "and" towards the end. (Is this the right list for this kind of report?) [1] http://www.postgresql.org/docs/9.1/static/transaction-iso.html#XACT-SERIALIZABLE
