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[racket] grouping within (in-query)

From: Dmitry Pavlov (dpavlov at ipa.nw.ru)
Date: Wed Feb 6 08:20:08 EST 2013		 
> (in-query c "select n, param, idx, value from data" #:group '(#("n")))
> ; does not compile, says
> ; "#%datum: keyword used as an expression in: #:group"

Sorry, the example should be
(in-query c "select n, value from data" #:group '(#("n")))

but it does not compile anyway.

Regards,

Dmitry
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