On Wed, Jan 20, 2016 at 05:56:27PM -0500, Tom Lane wrote:
> Bruce Momjian <br...@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.

The two sobering blockers I can remember were multi-xact (9.3) and JSONB
compression (9.4).

  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I. As I am, so you will be. +
+ Roman grave inscription                             +

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