very awesome example of postgres’ flexibility and extensibility blog.aggregateknowledge.com/2013/02/04/ope by
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Hilarious. I suggested to Greg Stark that he release his code that does exactly the same thing on Saturday at #FOSDEM
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well, that’s good for the ecosystem if you ask me; healthy competition is a good thing :)
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Sure, but unusual that it's exactly the same algorithm, also implemented as a pg agg function. OTOH he is a Googler, so perhaps not.