Re: Progress on fast path sorting, btree index creation time

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От Bruce Momjian
Тема Re: Progress on fast path sorting, btree index creation time
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Msg-id 20120209171620.GA22355@momjian.us
обсуждение исходный текст
Ответ на Re: Progress on fast path sorting, btree index creation time  (Peter Geoghegan <peter@2ndquadrant.com>)
Ответы Re: Progress on fast path sorting, btree index creation time  (Peter Geoghegan <peter@2ndquadrant.com>)
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On Thu, Feb 09, 2012 at 03:36:23PM +0000, Peter Geoghegan wrote:
> On 9 February 2012 14:51, Robert Haas <robertmhaas@gmail.com> wrote:
> > I'm not sure I entirely follow all this, but I'll look at the code
> > once you have it.  Are you saying that all the comparetup_yadda
> > functions are redundant to each other in the single-key case?
> 
> Yes, I am. The main reason that the loops exist in those functions
> (which is the only way that they substantially differ) is because they
> each have to get the other keys through various ways that characterise
> the tuple class that they encapsulate (index_getattr(),
> heap_getattr(), etc).

Does this help all types for sorting, including strings?

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + It's impossible for everything to be true. +


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