| Index: third_party/sqlite/test/tkt2640.test
|
| ===================================================================
|
| --- third_party/sqlite/test/tkt2640.test (revision 56608)
|
| +++ third_party/sqlite/test/tkt2640.test (working copy)
|
| @@ -1,124 +0,0 @@
|
| -# 2007 Sep 12
|
| -#
|
| -# 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 is to test that ticket #2640 has been fixed.
|
| -#
|
| -# $Id: tkt2640.test,v 1.3 2008/08/04 03:51:24 danielk1977 Exp $
|
| -#
|
| -
|
| -# The problem in ticket #2640 was that the query optimizer was
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| -# not recognizing all uses of tables within subqueries in the
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| -# WHERE clause. If the subquery contained a compound SELECT,
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| -# then tables that were used by terms of the compound other than
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| -# the last term would not be recognized as dependencies.
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| -# So if one of the SELECT statements within a compound made
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| -# use of a table that occurs later in a join, the query
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| -# optimizer would not recognize this and would try to evaluate
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| -# the subquery too early, before that tables value had been
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| -# established.
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| -
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| -set testdir [file dirname $argv0]
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| -source $testdir/tester.tcl
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| -
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| -ifcapable !subquery||!compound {
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| - finish_test
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| - return
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| -}
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| -
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| -do_test tkt2640-1.1 {
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| - execsql {
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| - CREATE TABLE persons(person_id, name);
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| - INSERT INTO persons VALUES(1,'fred');
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| - INSERT INTO persons VALUES(2,'barney');
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| - INSERT INTO persons VALUES(3,'wilma');
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| - INSERT INTO persons VALUES(4,'pebbles');
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| - INSERT INTO persons VALUES(5,'bambam');
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| - CREATE TABLE directors(person_id);
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| - INSERT INTO directors VALUES(5);
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| - INSERT INTO directors VALUES(3);
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| - CREATE TABLE writers(person_id);
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| - INSERT INTO writers VALUES(2);
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| - INSERT INTO writers VALUES(3);
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| - INSERT INTO writers VALUES(4);
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| - SELECT DISTINCT p.name
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| - FROM persons p, directors d
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| - WHERE d.person_id=p.person_id
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| - AND NOT EXISTS (
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| - SELECT person_id FROM directors d1 WHERE d1.person_id=p.person_id
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| - EXCEPT
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| - SELECT person_id FROM writers w
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| - );
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| - }
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| -} {wilma}
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| -do_test tkt2640-1.2 {
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| - execsql {
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| - SELECT DISTINCT p.name
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| - FROM persons p CROSS JOIN directors d
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| - WHERE d.person_id=p.person_id
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| - AND NOT EXISTS (
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| - SELECT person_id FROM directors d1 WHERE d1.person_id=p.person_id
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| - EXCEPT
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| - SELECT person_id FROM writers w
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| - );
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| - }
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| -} {wilma}
|
| -do_test tkt2640-1.3 {
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| - execsql {
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| - SELECT DISTINCT p.name
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| - FROM directors d CROSS JOIN persons p
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| - WHERE d.person_id=p.person_id
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| - AND NOT EXISTS (
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| - SELECT person_id FROM directors d1 WHERE d1.person_id=p.person_id
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| - EXCEPT
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| - SELECT person_id FROM writers w
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| - );
|
| - }
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| -} {wilma}
|
| -do_test tkt2640-1.4 {
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| - execsql {
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| - SELECT DISTINCT p.name
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| - FROM persons p, directors d
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| - WHERE d.person_id=p.person_id
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| - AND NOT EXISTS (
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| - SELECT person_id FROM directors d1 WHERE d1.person_id=d.person_id
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| - EXCEPT
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| - SELECT person_id FROM writers w
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| - );
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| - }
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| -} {wilma}
|
| -do_test tkt2640-1.5 {
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| - execsql {
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| - SELECT DISTINCT p.name
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| - FROM persons p CROSS JOIN directors d
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| - WHERE d.person_id=p.person_id
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| - AND NOT EXISTS (
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| - SELECT person_id FROM directors d1 WHERE d1.person_id=d.person_id
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| - EXCEPT
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| - SELECT person_id FROM writers w
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| - );
|
| - }
|
| -} {wilma}
|
| -do_test tkt2640-1.6 {
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| - execsql {
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| - SELECT DISTINCT p.name
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| - FROM directors d CROSS JOIN persons p
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| - WHERE d.person_id=p.person_id
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| - AND NOT EXISTS (
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| - SELECT person_id FROM directors d1 WHERE d1.person_id=d.person_id
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| - EXCEPT
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| - SELECT person_id FROM writers w
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| - );
|
| - }
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| -} {wilma}
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| -
|
| -
|
| -
|
| -finish_test
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|
|