On Wed, Jun 11, 2014 at 4:19 PM, Fujii Masao <masao.fu...@gmail.com> wrote:
> > IIUC even when we adopt only one algorithm, additional at least one bit is > necessary to see whether this backup block is compressed or not. > > This flag is necessary only for backup block, so there is no need to use > the header of each WAL record. What about just using the backup block > header? > > +1. We can also steal a few bits from ForkNumber field in the backup block header if required. Thanks, Pavan -- Pavan Deolasee http://www.linkedin.com/in/pavandeolasee
