maa1666@xxxxxxxx writes: > In the document "Transaction Processing in PostgreSQL" > ( http://www.postgresql.org/files/developer/transactions.pdf ) That's very, very old information. > I read : > "Postgres transactions are only guaranteed atomic if a disk page write > is an atomic action. Not true since the addition of full-page images to WAL. These days the only thing you really need to worry about is whether your disk drive lies about write-complete. A battery backed write cache is probably safe enough. regards, tom lane
