maa1666(at)yahoo(dot)fr 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