"Simon Riggs" <simon@2ndquadrant.com> wrote
>>
>> How do other databases deal with this? I can't imagine we are the only
>> ones. Are we doing something different than them?
>
> I'm not sure the people qualified to answer that are able to do so. What
> do other OSS projects do about this is more likely an answerable
> question.
>
I happened to know that a similar problem which is called "convoy
phenomenon" is discussed in 1979 (Wow! :-)) But not exactly the same case
maybe.
I copied the paper and put it here:
http://www.cs.toronto.edu/~zhouqq/convoy.pdf
Regards,
Qingqing