On Thu, Feb 23, 2017 at 10:37 PM, Bruce Momjian <br...@momjian.us> wrote:
> On Sat, Jan 21, 2017 at 12:46:05PM -0500, Stephen Frost wrote: > > * Petr Jelinek (petr.jeli...@2ndquadrant.com) wrote: > > > As we don't know the performance impact is (there was no benchmark done > > > on reasonably current code base) I really don't understand how you can > > > judge if it's worth it or not. > > > > Because I see having checksums as, frankly, something we always should > > have had (as most other databases do, for good reason...) and because > > they will hopefully prevent data loss. I'm willing to give us a fair > > bit to minimize the risk of losing data. > > Do these other databases do checksums because they don't do > full_page_writes? They just detect torn pages rather than repair them > like we do? > Torn page detection is usually/often done by other means than checksums. I don't think those are necessarily related. -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/
