Re: New CRC algorithm: Slicing by 8

On Fri, Oct 27, 2006 at 10:11:08AM +0100, Simon Riggs wrote:
> > Putting xl_prev to the end helps only for direct IO WAL sync methods,
> > else we would need it on every page.
>
> [There is already an XLogRecPtr on each 8k page.]

Given that hardware sector size is still 512 bytes, should there be a
way of detecting a missing 512 byte block in the middle of an 8K block.
The idea of simply writing a serial counter every 512 bytes seems to
be a good way to handle that...

Have a nice day,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.