When I do this: rhaas=# set default_transaction_isolation = 'serializable'; SET rhaas=# begin; BEGIN rhaas=# select 1;
Then I get this: TRAP: FailedAssertion("!(!RecoveryInProgress())", File: "predicate.c", Line: 1637) LOG: server process (PID 290) was terminated by signal 6: Abort trap The root of the problem here seems to be that we're imagining that it's possible to prevent serializable mode from being used under HS from within the check function for the transaction_isolation GUC - see check_XactIsoLevel. However, because there's a second GUC (default_transaction_isolation) that can also be used to change the initial setting, it doesn't work. I'm not exactly sure what the best way to fix this is. I assume that this problem also exists in 9.1, but I haven't checked. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers