Re: Progress on fast path sorting, btree index creation time
От | Merlin Moncure |
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Тема | Re: Progress on fast path sorting, btree index creation time |
Дата | |
Msg-id | CAHyXU0zS=Y3o2b7ZF-FvD_kzoLZAUzYx=KNFTwLMZrpU+tU5Wg@mail.gmail.com обсуждение исходный текст |
Ответ на | 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
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Список | pgsql-hackers |
On Thu, Dec 29, 2011 at 8:03 PM, Peter Geoghegan <peter@2ndquadrant.com> wrote: > * A spreadsheet that shows the results of re-running my earlier heap > tuple sorting benchmark with this new patch. The improvement in the > query that orders by 2 columns is all that is pertinent there, when > considering the value of (1) and the sense in standing still for > controversy A. > > * A spreadsheet that shows the difference in index creation times, > generated with the help of the new python script. very nice. let me save everyone the effort of opening his spreadsheets (which by the way both show 'HEAD/unoptimized' -- probably not what you meant): he's showing a consistent ~50% reduction in running time of sort driven queries -- that's money. merlin
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