Joel Reymont <joelr1@gmail.com> writes:
> On Apr 26, 2011, at 5:00 PM, Tom Lane wrote:
>> For another couple orders of magnitude, convert the sub-function to C code. (I don't think you need
>> a whole data type, just a function that does the scalar product.)
> That's a 30x speedup, from 12 minutes down to 38s. Thanks Tom!
Huh, I would've bet on a lot more actually. The nodeFunctionscan and
nodeAgg code must not be as inefficient as it looks on the surface ...
regards, tom lane