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| 1 # 2005 September 19 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # This file implements regression tests for SQLite library. | |
| 12 # | |
| 13 # This file implements tests for left outer joins containing ON | |
| 14 # clauses that restrict the scope of the left term of the join. | |
| 15 # | |
| 16 # $Id: join5.test,v 1.2 2007/06/08 00:20:48 drh Exp $ | |
| 17 | |
| 18 set testdir [file dirname $argv0] | |
| 19 source $testdir/tester.tcl | |
| 20 | |
| 21 | |
| 22 do_test join5-1.1 { | |
| 23 execsql { | |
| 24 BEGIN; | |
| 25 CREATE TABLE t1(a integer primary key, b integer, c integer); | |
| 26 CREATE TABLE t2(x integer primary key, y); | |
| 27 CREATE TABLE t3(p integer primary key, q); | |
| 28 INSERT INTO t3 VALUES(11,'t3-11'); | |
| 29 INSERT INTO t3 VALUES(12,'t3-12'); | |
| 30 INSERT INTO t2 VALUES(11,'t2-11'); | |
| 31 INSERT INTO t2 VALUES(12,'t2-12'); | |
| 32 INSERT INTO t1 VALUES(1, 5, 0); | |
| 33 INSERT INTO t1 VALUES(2, 11, 2); | |
| 34 INSERT INTO t1 VALUES(3, 12, 1); | |
| 35 COMMIT; | |
| 36 } | |
| 37 } {} | |
| 38 do_test join5-1.2 { | |
| 39 execsql { | |
| 40 select * from t1 left join t2 on t1.b=t2.x and t1.c=1 | |
| 41 } | |
| 42 } {1 5 0 {} {} 2 11 2 {} {} 3 12 1 12 t2-12} | |
| 43 do_test join5-1.3 { | |
| 44 execsql { | |
| 45 select * from t1 left join t2 on t1.b=t2.x where t1.c=1 | |
| 46 } | |
| 47 } {3 12 1 12 t2-12} | |
| 48 do_test join5-1.4 { | |
| 49 execsql { | |
| 50 select * from t1 left join t2 on t1.b=t2.x and t1.c=1 | |
| 51 left join t3 on t1.b=t3.p and t1.c=2 | |
| 52 } | |
| 53 } {1 5 0 {} {} {} {} 2 11 2 {} {} 11 t3-11 3 12 1 12 t2-12 {} {}} | |
| 54 do_test join5-1.5 { | |
| 55 execsql { | |
| 56 select * from t1 left join t2 on t1.b=t2.x and t1.c=1 | |
| 57 left join t3 on t1.b=t3.p where t1.c=2 | |
| 58 } | |
| 59 } {2 11 2 {} {} 11 t3-11} | |
| 60 | |
| 61 # Ticket #2403 | |
| 62 # | |
| 63 do_test join5-2.1 { | |
| 64 execsql { | |
| 65 CREATE TABLE ab(a,b); | |
| 66 INSERT INTO "ab" VALUES(1,2); | |
| 67 INSERT INTO "ab" VALUES(3,NULL); | |
| 68 | |
| 69 CREATE TABLE xy(x,y); | |
| 70 INSERT INTO "xy" VALUES(2,3); | |
| 71 INSERT INTO "xy" VALUES(NULL,1); | |
| 72 } | |
| 73 execsql {SELECT * FROM xy LEFT JOIN ab ON 0} | |
| 74 } {2 3 {} {} {} 1 {} {}} | |
| 75 do_test join5-2.2 { | |
| 76 execsql {SELECT * FROM xy LEFT JOIN ab ON 1} | |
| 77 } {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}} | |
| 78 do_test join5-2.3 { | |
| 79 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL} | |
| 80 } {2 3 {} {} {} 1 {} {}} | |
| 81 do_test join5-2.4 { | |
| 82 execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 0} | |
| 83 } {} | |
| 84 do_test join5-2.5 { | |
| 85 execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 0} | |
| 86 } {} | |
| 87 do_test join5-2.6 { | |
| 88 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 0} | |
| 89 } {} | |
| 90 do_test join5-2.7 { | |
| 91 execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 1} | |
| 92 } {2 3 {} {} {} 1 {} {}} | |
| 93 do_test join5-2.8 { | |
| 94 execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 1} | |
| 95 } {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}} | |
| 96 do_test join5-2.9 { | |
| 97 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 1} | |
| 98 } {2 3 {} {} {} 1 {} {}} | |
| 99 do_test join5-2.10 { | |
| 100 execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE NULL} | |
| 101 } {} | |
| 102 do_test join5-2.11 { | |
| 103 execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE NULL} | |
| 104 } {} | |
| 105 do_test join5-2.12 { | |
| 106 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE NULL} | |
| 107 } {} | |
| 108 | |
| 109 | |
| 110 finish_test | |
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