Bruce Momjian <bruce@momjian.us> writes:
> On Wed, Jan 20, 2016 at 01:59:59PM -0800, Peter Geoghegan wrote:
>> I think that we've learned some lessons from the problems with 9.3. I
>> don't think that one of those lessons was "take more time to release".
> -------------------------
>> There is reason to doubt that that would have changed matters one bit
>> with 9.3. It might be a good idea to formally state what those lessons
>> are.
> I do think that is effectively a lesson we learned, wrong or not.
I think a lesson we *should* have learned by now is that we need to put
more emphasis on testing. That includes not only spending more time on
it, but investing more in testing infrastructure. The buildfarm has been
a huge advance in our ability to find/fix portability issues quickly, but
it does nothing to, say, assess crash safety. Or identify performance
regressions.
As a concrete example, I recall that Heikki or someone had a tool for
checking WAL replay by comparing master and slave disk contents. We
should make an effort to get that into a state where anyone can use it.
regards, tom lane