sqlite/test/tkt-868145d012.test
drh cdc2e43d8e Add a missing test that prevented double LEFT JOINs with transitive
constraints from working correctly.  Fix for ticket [868145d012].

FossilOrigin-Name: 72919ec34f0d663d551c1070285ad93b932bcb74
2013-07-01 17:27:19 +00:00

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# 2013 March 05
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. Specifically,
# it tests that ticket [868145d012a1] is fixed.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_execsql_test tkt-868145d012.100 {
CREATE TABLE p (
id INTEGER PRIMARY KEY,
uid VARCHAR(36),
t INTEGER
);
CREATE TABLE pa (
id INTEGER PRIMARY KEY,
a_uid VARCHAR(36)
);
CREATE TABLE a (
id INTEGER PRIMARY KEY,
uid VARCHAR(36),
t INTEGER
);
INSERT INTO pa VALUES(1,'1234');
INSERT INTO pa VALUES(2,'2345');
INSERT INTO p VALUES(3,'1234',97);
INSERT INTO p VALUES(4,'1234',98);
INSERT INTO a VALUES(5,'1234',98);
INSERT INTO a VALUES(6,'1234',99);
} {}
do_execsql_test tkt-868145d012.110 {
SELECT DISTINCT pa.id, p.id, a.id
FROM
pa
LEFT JOIN p ON p.uid='1234'
LEFT JOIN a ON a.uid=pa.a_uid
WHERE
a.t=p.t
;
} {1 4 5}
do_execsql_test tkt-868145d012.120 {
SELECT DISTINCT pa.id, p.id, a.id
FROM
pa
LEFT JOIN p ON p.uid='1234'
LEFT JOIN a ON a.uid=pa.a_uid AND a.t=p.t
ORDER BY 1, 2, 3
;
} {1 3 {} 1 4 5 2 3 {} 2 4 {}}
finish_test