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view tests/filter.ur @ 2061:e7b9002c2bfc
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author | Adam Chlipala <adam@chlipala.net> |
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date | Tue, 19 Aug 2014 11:23:26 -0400 |
parents | 6d9538ce94d8 |
children |
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fun filter [fs ::: {Type}] [ks] (t : sql_table fs ks) (p : sql_exp [T = fs] [] [] bool) : sql_query [T = fs] [] = (SELECT * FROM t WHERE {p}) table t : { A : int, B : float } fun main () = queryX (filter t (WHERE t.A > 3)) (fn r => <xml>{[r.T.A]}, {[r.T.B]}</xml>)