There are a lot of these showing up in c.a.c's stdout.log

2006-06-15 02:05:06,966 ERROR [atlassian.confluence.util.XWorkTransactionInterceptor] onThrowable(Lcom/opensymphony/xwork/ActionInvocation;Lorg/springframework/transaction/interceptor/TransactionAttribute;Lorg/springframework/tr
ansaction/TransactionStatus;Ljava/lang/Throwable;)V Invoking rollback for transaction on action '/pages/listpages-alphaview.action (AlphabeticalListPagesAction.execute())' due to throwable: org.springframework.jdbc.BadSqlGrammar
Exception: Bad SQL grammar [] in task 'Hibernate operation'; nested exception is org.postgresql.util.PSQLException: ERROR: operator does not exist: bigint = bytea
org.springframework.jdbc.BadSqlGrammarException: Bad SQL grammar [] in task 'Hibernate operation'; nested exception is org.postgresql.util.PSQLException: ERROR: operator does not exist: bigint = bytea
org.postgresql.util.PSQLException: ERROR: operator does not exist: bigint = bytea