Re: Per-column collation, work in progress

On Wed, Nov 24, 2010 at 3:37 PM, Peter Eisentraut <peter_e@gmx.net> wrote:
> On tor, 2010-10-14 at 22:54 -0400, Robert Haas wrote:
>> It seems you've falsified the header comment in
>> pathkeys_useful_for_merging(), although I guess it's already false
>> because it doesn't seem to have been updated for the NULLS ASC/DESC
>> stuff, and the interior comment in right_merge_direction() also needs
>> adjusting.  But this might be more than a documentation problem,
>> because the choice of merge direction really *is* arbitrary in the
>> case of ASC/DESC and NULLS FIRST/LAST, but I'm not sure whether that's
>> actually true for collation.  If collation affects the definition of
>> equality then it certainly isn't true.
>
> I did check that again and didn't arrive at the conclusion that the
> comments would need updating either with respect to this patch or some
> previous change.  Could you check again and possibly provide a
> suggestion?

I think that you are right and that my previous comment was erroneous.
 Sorry for the noise.

-- 
Robert Haas
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