Mercurial > urweb

comparison tests/join.ur @ 750:059074c8d2fc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LEFT JOIN
author Adam Chlipala <adamc@hcoop.net>
date Tue, 28 Apr 2009 11:05:28 -0400
parents 16bfd9e244cd
children f95d652086cd
comparison
equal deleted inserted replaced
749:16bfd9e244cd 750:059074c8d2fc
1 table t : { A : int } 1 table t : { A : int, B : string, C : option string }
2 2
3 fun main () = 3 fun main () =
4 r <- oneRow (SELECT * FROM t); 4 r <- oneRow (SELECT * FROM t);
5 r <- oneRow (SELECT * FROM t AS T1, t AS T2); 5 r <- oneRow (SELECT * FROM t AS T1, t AS T2);
6 r <- oneRow (SELECT * FROM t AS T1 CROSS JOIN t AS T2); 6 r <- oneRow (SELECT * FROM t AS T1 CROSS JOIN t AS T2);
7 r <- oneRow (SELECT * FROM t AS T1 JOIN t AS T2 ON T1.A = T2.A); 7 r <- oneRow (SELECT * FROM t AS T1 JOIN t AS T2 ON T1.A = T2.A);
8 r <- oneRow (SELECT * FROM t AS T1 LEFT JOIN t AS T2 ON T1.A = T2.A);
8 return <xml/> 9 return <xml/>