Cascalog 2.0 is a major improvement over 1.x. The underlying query parser remains the same but there are several notable breaking API changes. This is a guide to point out the major differences between 2.x and 1.x versions of Cascalog to help you make the upgrade.
(defmapop [times [x]] [y] (* x y))is no longer supported in favour of using anonymous functions
(c/limit  ...)is now
((c/limit 1) ...)
(def src [1 2 3 4 5]) (defn square [x] (* x x)) (defn my-query [op] (??<- [!x !y] (src !x) (op !x :> !y))) (my-query #'square)
Cascalog operations are now just functions, so the
def*op names have been deprecated in favor of names that sound like functions,
def*fn. A few examples: -
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