On 2008-10-12, at 16:22, Hitoshi Harada wrote:

2008/10/12 Robert Haas <[EMAIL PROTECTED]>:
I wonder if this could be implemented using the window-function
infrastructure...


Yeah, actually window functions I am working now has percent_rank() or
something he wants. That is better than WITH clauses but still we must
see the last row before determine the percent. Better than count(*) of
course, but I'm not sure it meets his needs.

excuse my ignorance, apparently I don't recall that patches discussion in here. If it pops out, and gets into cvs, can someone remind me of that - please ? Also, will that patch also be able to speed up count(*) , or is it for different purpose ? Sorry if I am repeating the subject, if so - please just respond in private.

thanks folks.


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