Re: feature freeze and beta schedule
От | Andrew Gierth |
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Тема | Re: feature freeze and beta schedule |
Дата | |
Msg-id | 87wq0rsugn.fsf@news-spur.riddles.org.uk обсуждение исходный текст |
Ответ на | Re: feature freeze and beta schedule (Andres Freund <andres@anarazel.de>) |
Ответы |
Re: feature freeze and beta schedule
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Список | pgsql-hackers |
>>>>> "Andres" == Andres Freund <andres@anarazel.de> writes: Andres> * Abbreviated key support for Datum sortsAndres> Unfortunately the discussion about potential performanceAndres> regression has been largely sidestepped by bickering overAndres> minutiae.Andres> => ? There isn't a "potential performance regression" that is in any respect different from the already-committed changes for non-Datum sorts. Also as I've pointed out, it's not even clear that there is a regression at all, since I've already shown that changes of several percent in timings of sort operations can be caused by irrelevant noise factors. To actually show a performance regression of less than 10% or so would require, at a minimum, showing two different timings using the same data and the same binary, though even that is subject to noise; to really prove it you'd have to show a statistically significant difference between sets of binaries with random padding sizes (see the graph I posted on this point). -- Andrew (irc:RhodiumToad)
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