wasCSharpSQLite – Blame information for rev 1
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1 | office | 1 | # 2007 June 8 |
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. The |
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12 | # focus of this file is testing that terms in the ON clause of |
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13 | # a LEFT OUTER JOIN are not used with indices. See ticket #3015. |
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14 | # |
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15 | # $Id: where6.test,v 1.2 2008/04/17 19:14:02 drh Exp $ |
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16 | |||
17 | set testdir [file dirname $argv0] |
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18 | source $testdir/tester.tcl |
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19 | |||
20 | # Build some test data |
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21 | # |
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22 | do_test where6-1.1 { |
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23 | execsql { |
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24 | CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c); |
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25 | INSERT INTO t1 VALUES(1,3,1); |
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26 | INSERT INTO t1 VALUES(2,4,2); |
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27 | CREATE TABLE t2(x INTEGER PRIMARY KEY); |
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28 | INSERT INTO t2 VALUES(3); |
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29 | |||
30 | SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1; |
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31 | } |
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32 | } {1 3 1 3 2 4 2 {}} |
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33 | do_test where6-1.2 { |
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34 | execsql { |
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35 | SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1; |
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36 | } |
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37 | } {1 3 1 3 2 4 2 {}} |
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38 | do_test where6-1.3 { |
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39 | execsql { |
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40 | SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c; |
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41 | } |
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42 | } {1 3 1 3 2 4 2 {}} |
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43 | do_test where6-1.4 { |
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44 | execsql { |
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45 | SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c; |
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46 | } |
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47 | } {1 3 1 3 2 4 2 {}} |
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48 | |||
49 | ifcapable explain { |
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50 | do_test where6-1.5 { |
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51 | explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c} |
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52 | } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}] |
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53 | do_test where6-1.6 { |
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54 | explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c} |
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55 | } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}] |
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56 | } |
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57 | |||
58 | do_test where6-1.11 { |
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59 | execsql { |
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60 | SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1; |
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61 | } |
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62 | } {1 3 1 3} |
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63 | do_test where6-1.12 { |
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64 | execsql { |
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65 | SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1; |
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66 | } |
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67 | } {1 3 1 3} |
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68 | do_test where6-1.13 { |
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69 | execsql { |
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70 | SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c; |
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71 | } |
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72 | } {1 3 1 3} |
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73 | |||
74 | |||
75 | |||
76 | do_test where6-2.1 { |
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77 | execsql { |
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78 | CREATE INDEX i1 ON t1(c); |
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79 | |||
80 | SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1; |
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81 | } |
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82 | } {1 3 1 3 2 4 2 {}} |
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83 | do_test where6-2.2 { |
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84 | execsql { |
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85 | SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1; |
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86 | } |
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87 | } {1 3 1 3 2 4 2 {}} |
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88 | do_test where6-2.3 { |
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89 | execsql { |
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90 | SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c; |
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91 | } |
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92 | } {1 3 1 3 2 4 2 {}} |
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93 | do_test where6-2.4 { |
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94 | execsql { |
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95 | SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c; |
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96 | } |
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97 | } {1 3 1 3 2 4 2 {}} |
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98 | |||
99 | ifcapable explain { |
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100 | do_test where6-2.5 { |
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101 | explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c} |
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102 | } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}] |
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103 | do_test where6-2.6 { |
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104 | explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c} |
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105 | } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}] |
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106 | } |
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107 | |||
108 | |||
109 | do_test where6-2.11 { |
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110 | execsql { |
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111 | SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1; |
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112 | } |
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113 | } {1 3 1 3} |
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114 | do_test where6-2.12 { |
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115 | execsql { |
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116 | SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1; |
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117 | } |
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118 | } {1 3 1 3} |
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119 | do_test where6-2.13 { |
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120 | execsql { |
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121 | SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c; |
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122 | } |
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123 | } {1 3 1 3} |
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124 | do_test where6-2.14 { |
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125 | execsql { |
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126 | SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c; |
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127 | } |
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128 | } {1 3 1 3} |
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129 | |||
130 | # Ticket [ebdbadade5b]: |
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131 | # If the ON close on a LEFT JOIN is of the form x=y where both x and y |
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132 | # are indexed columns on tables to left of the join, then do not use that |
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133 | # term with indices to either table. |
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134 | # |
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135 | do_test where6-3.1 { |
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136 | db eval { |
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137 | CREATE TABLE t4(x UNIQUE); |
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138 | INSERT INTO t4 VALUES('abc'); |
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139 | INSERT INTO t4 VALUES('def'); |
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140 | INSERT INTO t4 VALUES('ghi'); |
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141 | CREATE TABLE t5(a, b, c, PRIMARY KEY(a,b)); |
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142 | INSERT INTO t5 VALUES('abc','def',123); |
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143 | INSERT INTO t5 VALUES('def','ghi',456); |
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144 | |||
145 | SELECT t4a.x, t4b.x, t5.c, t6.v |
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146 | FROM t4 AS t4a |
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147 | INNER JOIN t4 AS t4b |
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148 | LEFT JOIN t5 ON t5.a=t4a.x AND t5.b=t4b.x |
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149 | LEFT JOIN (SELECT 1 AS v) AS t6 ON t4a.x=t4b.x |
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150 | ORDER BY 1, 2, 3; |
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151 | } |
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152 | } {abc abc {} 1 abc def 123 {} abc ghi {} {} def abc {} {} def def {} 1 def ghi 456 {} ghi abc {} {} ghi def {} {} ghi ghi {} 1} |
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153 | |||
154 | finish_test |