Matteo Beccati <php@beccati.com> writes:
> Tom Lane ha scritto:
>> Matteo Beccati <php@beccati.com> 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
