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This takes queries written in datalog (or Sparql) and compiles them to Bash (using sort, awk etc.) so you can run them on CSV files.

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I saw this paper just yesterday from another source. This is brilliant in it's simplicity and the performance is pretty impressive. I hope to write something like this in Julia.

Wondering if I'm missing something but the example is

fact(X, R, Y) :∼ cat facts.tsv

locatedIn(X, Y) :- fact(X, "locatedIn", Y).

locatedIn(X, Y) :- locatedIn(X, Z), fact(Z, "locatedIn", Y).

main(X) :- locatedIn(X, "USA")

I think line 3 could just be locatedIn(X, Y) :- locatedIn(X, Z), locatedIn(Z,Y).

unless I'm missing something.

Welcome, your arrival is not unexpected: https://news.ycombinator.com/item?id=17970854

haha. will update if I have anything worthwhile.

> I think line 3 could just be locatedIn(X, Y) :- locatedIn(X, Z), locatedIn(Z,Y).

This creates potential infinite recursion, which is why the other form is used.

Thanks :)

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