"Zeugswetter Andreas ADI SD" <[EMAIL PROTECTED]> writes: > Ok, so when you need CRC's on a replicate (but not on the master) you > turn it > off during standby replay, but turn it on when you start the replicate > for normal operation.
Thought: even when it's off, the CRC had better be computed for shutdown-checkpoint records. Else there's no way to turn it on even with a postmaster restart --- unless we accept the idea of poking a hole in the normal mode. (Which I still dislike, and even more so if the special value is zero. Almost any other value would be safer than zero.) On the whole, though, I still don't want to put this in. I don't think Simon has thought it through sufficiently, and we haven't even seen any demonstration of a big speedup. (Another hole in the implementation as given: pg_resetxlog.) regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq