Dear Joshua,
Thanks for your reply. Sadly, I haven't the time (or expertise) to write
this myself. However, the feature would be really useful to have. I'd
certainly be willing to make a £200 payment or donation in return.
I'm aware that this number is problematic, as it undervalues developer
time (£200 is the value, to me, of that feature; which is probably
uncorrelated with the value of his time to anyone who might implement it).
The offer is there if anyone wants to take it; please feel free to
contact me off-list.
Richard
Joshua Tolley wrote:
On Fri, Jul 10, 2009 at 11:37:46PM +0000, Richard Neill wrote:
In addition to the existing aggregate functions (avg, stddev etc), it would
be nice if postgres could return further information. For example, the
quartiles, percentiles, and median.
[mode would also be useful, as an explicit function, though we can get it
easily enough using count(1) order by count desc].
According to google, this has been a wish since at least year 2000 for
various people, but doesn't seem to be implemented.
That's because no one has yet taken the time. However, patches are welcome, if
you'd like it enough to implement it. It's on my list of things that might be
interesting to write, for example, but there are other things higher up on
that list.
--
Joshua Tolley / eggyknap
End Point Corporation
http://www.endpoint.com
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