Mercurial > urweb

annotate tests/selexp.ur @ 256:e52243e20858

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
'eq' type class
author Adam Chlipala <adamc@hcoop.net>
date Sun, 31 Aug 2008 15:15:41 -0400
parents 71bafe66dbe1
children
rev   line source
adamc@233 1 table t1 : {A : int, B : string, C : float}
adamc@233 2 table t2 : {A : float, D : int}
adamc@233 3
adamc@233 4 val q1 = (SELECT 0 AS Zero FROM t1)
adamc@233 5 val q2 = (SELECT t1.A < t2.D AS Lt FROM t1, t2)
adamc@233 6 val q3 = (SELECT t1.A < t2.D AS Lt, t1.A, t2.D, t1.C = t2.A AS Eq FROM t1, t2)