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