Re: sortsupport for text
От | Peter Geoghegan |
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Тема | Re: sortsupport for text |
Дата | |
Msg-id | CAEYLb_UodiDUrO8bwnBJ0JqqUDdQyHjX6ZkzhgPqdiCTq9myWg@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: sortsupport for text (Robert Haas <robertmhaas@gmail.com>) |
Ответы |
Re: sortsupport for text
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Список | pgsql-hackers |
On 23 July 2012 16:09, Robert Haas <robertmhaas@gmail.com> wrote: > However, what this really boils down to is that you and Peter don't > like this line of code: > > + tss->buflen1 = TYPEALIGN(TEXTBUFLEN, len1); I can only speak for myself, though I agree with your summary here. > What would you like it to say instead? > > The obvious formulation is: > > while (len1 < tss->buflen1) > tss->buflen *= 2; That's what I had in mind. +1. > Or perhaps the following, which will normally be more efficient, > though possibly not as efficient as what I've got there now: > > tss->buflen = 1 << ffs(len1); I'm sorry, I don't follow you here. What is ffs() ? -- Peter Geoghegan http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training and Services
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