Bruce Momjian wrote:
> On Tue, Apr 23, 2013 at 05:04:15PM -0400, Bruce Momjian wrote:
> > > Do we usually repeat the changes listed in the backwards
> > > compatibility section later, in the "Changes" section? If not, then
> > > instead of the first two items above, let's just have these in the
> > > backwards-compatibility section:
> > 
> > We do not repeat the incompatibile items later in release notes.  I have
> > added some of your text to one of the items, and added a mention that
> > tooling will need adjustment.  Please check the post-commit version and
> > let me know about adjustments.
> Let me clarify --- changes to our WAL binary format and source code
> changes are not really incompatibilities from a user perspective as we
> never promise to do our best to minimize such changes  --- m eaning the
> fact the WAL format changed is something that would be only in the
> source code section and not in the "incompatibilities section"  ---
> incompatibilities are related to change in user experience or
> documented-API changes.

These guidelines makes sense, except I think the change in naming
standard of xlog segments is important to document clearly because, even
if we have not promised compatibility, people could be relying on it in
scripts.  I think it makes sense to waste a couple of lines documenting
this change, even if we expect the number of people to be bitten by it
to be very low.

Unrelated: I think this item
  Add configuration variable lock_timeout to limit lock wait duration
  (Zoltán Böszörményi)
should go in the "locking" section.  What's of interest here is the new
feature to set maximum lock waits.  The fact that this is done using a
configuration variable is not that important.

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Training & Services

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