Matteo Beccati <[EMAIL PROTECTED]> writes: > Tom Lane ha scritto: >> Matteo Beccati <[EMAIL PROTECTED]> writes: >>> I cannot see anything bad by using something like that: >>> if (histogram is large/representative enough) >> >> Well, the question is exactly what is "large enough"? I feel a bit >> uncomfortable about applying the idea to a histogram with only 10 >> entries (especially if we ignore two of 'em). With 100 or more, >> it sounds all right. What's the breakpoint?
> Yes, I think 100-200 could be a good breakpoint. I've committed this change with (for now) 100 as the minimum histogram size to use. Stefan, are you interested in retrying your benchmark? regards, tom lane ---------------------------(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