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# 2009 December 16
#
# 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.
#
# This file implements tests to verify that ticket [31338dca7e] has been
# fixed. Ticket [31338dca7e] demonstrates problems with the OR-clause
# optimization in joins where the WHERE clause is of the form
#
# (x AND y) OR z
#
# And the x and y subterms from from different tables of the join.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_test tkt-31338-1.1 {
db eval {
CREATE TABLE t1(x);
CREATE TABLE t2(y);
INSERT INTO t1 VALUES(111);
INSERT INTO t1 VALUES(222);
INSERT INTO t2 VALUES(333);
INSERT INTO t2 VALUES(444);
SELECT * FROM t1, t2
WHERE (x=111 AND y!=444) OR x=222
ORDER BY x, y;
}
} {111 333 222 333 222 444}
do_test tkt-31338-1.2 {
db eval {
CREATE INDEX t1x ON t1(x);
SELECT * FROM t1, t2
WHERE (x=111 AND y!=444) OR x=222
ORDER BY x, y;
}
} {111 333 222 333 222 444}
do_test tkt-31338-2.1 {
db eval {
CREATE TABLE t3(v,w);
CREATE TABLE t4(x,y);
CREATE TABLE t5(z);
INSERT INTO t3 VALUES(111,222);
INSERT INTO t3 VALUES(333,444);
INSERT INTO t4 VALUES(222,333);
INSERT INTO t4 VALUES(444,555);
INSERT INTO t5 VALUES(888);
INSERT INTO t5 VALUES(999);
SELECT * FROM t3, t4, t5
WHERE (v=111 AND x=w AND z!=999) OR (v=333 AND x=444)
ORDER BY v, w, x, y, z;
}
} {111 222 222 333 888 333 444 444 555 888 333 444 444 555 999}
do_test tkt-31338-2.2 {
db eval {
CREATE INDEX t3v ON t3(v);
CREATE INDEX t4x ON t4(x);
SELECT * FROM t3, t4, t5
WHERE (v=111 AND x=w AND z!=999) OR (v=333 AND x=444)
ORDER BY v, w, x, y, z;
}
} {111 222 222 333 888 333 444 444 555 888 333 444 444 555 999}
finish_test
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