hi, Our friends from CartoDB [1] provide a beautiful Jenks Natural Breaks function for Postgres [2]. It is quite computationally intensive. Even if you don't know what Jenks is, do you see any optimizations? Best, thanks, Seamus PS. I was hoping for something magical like Tom Lane's VALUES() fix for DataDog [3] or HeapAnalytic's array fix [4], although I realize both are fundamentally different :) This is probably a more subtle loop optimization problem, if anything. [1] http://cartodb.com [2] https://github.com/CartoDB/cartodb/blob/master/lib/sql/scripts-available/CDB_JenksBins.sql [3] https://www.datadoghq.com/2013/08/100x-faster-postgres-performance-by-changing-1-line/ [4] http://blog.heapanalytics.com/dont-iterate-over-a-postgres-array-with-a-loop/ -- Seamus Abshere, SCEA https://github.com/seamusabshere
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