Re: Compression of full-page-writes

On Fri, 2013-08-30 at 09:57 +0300, Heikki Linnakangas wrote:
> Speeding up the CRC calculation obviously won't help with the WAL volume 
> per se, ie. you still generate the same amount of WAL that needs to be 
> shipped in replication. But then again, if all you want to do is to 
> reduce the volume, you could just compress the whole WAL stream.

Was this point addressed? How much benefit is there to compressing the
data before it goes into the WAL stream versus after?

Regards,Jeff Davis