Re: Possible index issue on 9.5 slave

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От Ian Barwick
Тема Re: Possible index issue on 9.5 slave
Дата
Msg-id 53A25A47.7050109@2ndquadrant.com
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Ответ на Re: Possible index issue on 9.5 slave  (Peter Geoghegan <pg@heroku.com>)
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On 19/06/14 12:30, Peter Geoghegan wrote:
> On Wed, Jun 18, 2014 at 8:09 PM, Ian Barwick <ian@2ndquadrant.com> wrote:
>> Interesting, I'll take a look later.
>
> I'm pretty suspicious of incompatibilities that may exist between the
> two sets of OS collations involved here. We aren't very clear on the
> extent to which what you're doing is supported, but it's certainly the
> case that bttextcmp()/varstr_cmp()/strcoll() return values must be
> immutable between the two systems. Still, it should be possible to
> determine if that's the problem using btreecheck.
>
> Do you get perfectly consistent answers between the two when you ORDER BY login?

Hmm, nope, different sort order.


Regards

Ian Barwick

--  Ian Barwick                   http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training &
Services



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