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Add test case for ticket #601. (CVS 1215)

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FossilOrigin-Name: 096312dacb9eb2f8da3cec1504aef8629b505e7f
This commit is contained in:
drh
2004-02-09 14:35:28 +00:00
parent b20ea9d225
commit e2201971ac
3 changed files with 37 additions and 8 deletions
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31
test/misc3.test
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@ -13,7 +13,7 @@
# This file implements tests for miscellanous features that were
# left out of other test files.
#
# $Id: misc3.test,v 1.6 2004/01/14 21:59:24 drh Exp $
# $Id: misc3.test,v 1.7 2004/02/09 14:35:28 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -207,5 +207,34 @@ do_test misc3-4.3 {
}
} {64}
# Ticket #601: Putting a left join inside "SELECT * FROM (<join-here>)"
# gives different results that if the outer "SELECT * FROM ..." is omitted.
#
do_test misc4-5.1 {
execsql {
CREATE TABLE x1 (b, c);
INSERT INTO x1 VALUES('dog',3);
INSERT INTO x1 VALUES('cat',1);
INSERT INTO x1 VALUES('dog',4);
CREATE TABLE x2 (c, e);
INSERT INTO x2 VALUES(1,'one');
INSERT INTO x2 VALUES(2,'two');
INSERT INTO x2 VALUES(3,'three');
INSERT INTO x2 VALUES(4,'four');
SELECT x2.c AS c, e, b FROM x2 LEFT JOIN
(SELECT b, max(c) AS c FROM x1 GROUP BY b)
USING(c);
}
} {1 one cat 2 two {} 3 three {} 4 four dog}
do_test misc4-5.2 {
execsql {
SELECT * FROM (
SELECT x2.c AS c, e, b FROM x2 LEFT JOIN
(SELECT b, max(c) AS c FROM x1 GROUP BY b)
USING(c)
);
}
} {1 one cat 2 two {} 3 three {} 4 four dog}
finish_test