On Mon, 12 Dec 2005, Neil Conway wrote: > > Whether we should go to the trouble of second-guessing glibc is a > separate question, though: it would be good to see some performance > figures for real-world queries. >
For qsort, due to its simple usage, I think simulation test should be enough. But we have to consider many situations like cardinality, data distribution etc. Maybe not easy to find real world queries providing so many variations. > BTW, Luke Lonergan recently posted some performance results for a fairly > efficient public domain implementation of qsort to the bizgres list: > > http://lists.pgfoundry.org/pipermail/bizgres-general/2005-December/000294.html > Ooops, more interesting than the thread itself ;-) Regards, Qingqing ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
