On Sat, Jan 21, 2017 at 7:39 PM, Petr Jelinek
<petr.jeli...@2ndquadrant.com> wrote:
> So in summary "postgresql.conf options are easy to change" while "initdb
> options are hard to change", I can see this argument used both for
> enabling or disabling checksums by default. As I said I would be less
> worried if it was easy to turn off, but we are not there afaik. And even
> then I'd still want benchmark first.

Adding support for disabling checksums is almost trivial as it only
requires flipping a value in the control file. And I have somewhere
sitting around a similarly simple tool for turning on checksums while
the database is offline. FWIW, based on customers and fellow
conference goers I have talked to most would gladly take the
performance hit, but not the downtime to turn it on on an existing

Ants Aasma

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