Re: PATCH: CITEXT 2.0
От | David E. Wheeler |
---|---|
Тема | Re: PATCH: CITEXT 2.0 |
Дата | |
Msg-id | D0094897-A812-416E-8E8F-3193ACC55BFC@kineticode.com обсуждение исходный текст |
Ответ на | Re: PATCH: CITEXT 2.0 ("David E. Wheeler" <david@kineticode.com>) |
Ответы |
Re: PATCH: CITEXT 2.0
Re: PATCH: CITEXT 2.0 Re: PATCH: CITEXT 2.0 |
Список | pgsql-hackers |
On Jul 7, 2008, at 12:21, David E. Wheeler wrote: > My question is: why? Shouldn't they all use the same function for > comparison? I'm happy to dupe this implementation for citext, but I > don't understand it. Should not all comparisons be executed > consistently? Let me try to answer my own question by citing this comment: /* * Since we only care about equality or not-equality, we can avoid all the * expense of strcoll() here, and just do bitwise comparison. */ So, the upshot is that the = and <> operators are not locale-aware, yes? They just do byte comparisons. Is that really the way it should be? I mean, could there not be strings that are equivalent but have different bytes? Thanks, David
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