wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # 2001 September 15 |
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 the DELETE FROM statement. |
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13 | # |
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14 | # $Id: delete.test,v 1.26 2009/06/05 17:09:12 drh Exp $ |
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15 | |||
16 | set testdir [file dirname $argv0] |
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17 | source $testdir/tester.tcl |
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18 | |||
19 | # Try to delete from a non-existant table. |
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20 | # |
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21 | do_test delete-1.1 { |
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22 | set v [catch {execsql {DELETE FROM test1}} msg] |
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23 | lappend v $msg |
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24 | } {1 {no such table: test1}} |
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25 | |||
26 | # Try to delete from sqlite_master |
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27 | # |
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28 | do_test delete-2.1 { |
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29 | set v [catch {execsql {DELETE FROM sqlite_master}} msg] |
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30 | lappend v $msg |
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31 | } {1 {table sqlite_master may not be modified}} |
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32 | |||
33 | # Delete selected entries from a table with and without an index. |
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34 | # |
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35 | do_test delete-3.1.1 { |
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36 | execsql {CREATE TABLE table1(f1 int, f2 int)} |
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37 | execsql {INSERT INTO table1 VALUES(1,2)} |
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38 | execsql {INSERT INTO table1 VALUES(2,4)} |
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39 | execsql {INSERT INTO table1 VALUES(3,8)} |
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40 | execsql {INSERT INTO table1 VALUES(4,16)} |
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41 | execsql {SELECT * FROM table1 ORDER BY f1} |
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42 | } {1 2 2 4 3 8 4 16} |
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43 | do_test delete-3.1.2 { |
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44 | execsql {DELETE FROM table1 WHERE f1=3} |
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45 | } {} |
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46 | do_test delete-3.1.3 { |
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47 | execsql {SELECT * FROM table1 ORDER BY f1} |
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48 | } {1 2 2 4 4 16} |
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49 | do_test delete-3.1.4 { |
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50 | execsql {CREATE INDEX index1 ON table1(f1)} |
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51 | execsql {PRAGMA count_changes=on} |
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52 | ifcapable explain { |
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53 | execsql {EXPLAIN DELETE FROM table1 WHERE f1=3} |
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54 | } |
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55 | execsql {DELETE FROM 'table1' WHERE f1=3} |
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56 | } {0} |
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57 | do_test delete-3.1.5 { |
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58 | execsql {SELECT * FROM table1 ORDER BY f1} |
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59 | } {1 2 2 4 4 16} |
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60 | do_test delete-3.1.6.1 { |
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61 | execsql {DELETE FROM table1 WHERE f1=2} |
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62 | } {1} |
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63 | do_test delete-3.1.6.2 { |
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64 | db changes |
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65 | } 1 |
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66 | do_test delete-3.1.7 { |
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67 | execsql {SELECT * FROM table1 ORDER BY f1} |
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68 | } {1 2 4 16} |
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69 | integrity_check delete-3.2 |
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70 | |||
71 | |||
72 | # Semantic errors in the WHERE clause |
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73 | # |
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74 | do_test delete-4.1 { |
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75 | execsql {CREATE TABLE table2(f1 int, f2 int)} |
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76 | set v [catch {execsql {DELETE FROM table2 WHERE f3=5}} msg] |
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77 | lappend v $msg |
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78 | } {1 {no such column: f3}} |
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79 | |||
80 | do_test delete-4.2 { |
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81 | set v [catch {execsql {DELETE FROM table2 WHERE xyzzy(f1+4)}} msg] |
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82 | lappend v $msg |
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83 | } {1 {no such function: xyzzy}} |
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84 | integrity_check delete-4.3 |
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85 | |||
86 | # Lots of deletes |
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87 | # |
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88 | do_test delete-5.1.1 { |
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89 | execsql {DELETE FROM table1} |
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90 | } {2} |
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91 | do_test delete-5.1.2 { |
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92 | execsql {SELECT count(*) FROM table1} |
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93 | } {0} |
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94 | do_test delete-5.2.1 { |
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95 | execsql {BEGIN TRANSACTION} |
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96 | for {set i 1} {$i<=200} {incr i} { |
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97 | execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])" |
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98 | } |
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99 | execsql {COMMIT} |
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100 | execsql {SELECT count(*) FROM table1} |
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101 | } {200} |
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102 | do_test delete-5.2.2 { |
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103 | execsql {DELETE FROM table1} |
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104 | } {200} |
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105 | do_test delete-5.2.3 { |
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106 | execsql {BEGIN TRANSACTION} |
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107 | for {set i 1} {$i<=200} {incr i} { |
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108 | execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])" |
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109 | } |
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110 | execsql {COMMIT} |
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111 | execsql {SELECT count(*) FROM table1} |
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112 | } {200} |
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113 | do_test delete-5.2.4 { |
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114 | execsql {PRAGMA count_changes=off} |
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115 | execsql {DELETE FROM table1} |
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116 | } {} |
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117 | do_test delete-5.2.5 { |
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118 | execsql {SELECT count(*) FROM table1} |
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119 | } {0} |
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120 | do_test delete-5.2.6 { |
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121 | execsql {BEGIN TRANSACTION} |
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122 | for {set i 1} {$i<=200} {incr i} { |
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123 | execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])" |
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124 | } |
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125 | execsql {COMMIT} |
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126 | execsql {SELECT count(*) FROM table1} |
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127 | } {200} |
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128 | do_test delete-5.3 { |
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129 | for {set i 1} {$i<=200} {incr i 4} { |
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130 | execsql "DELETE FROM table1 WHERE f1==$i" |
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131 | } |
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132 | execsql {SELECT count(*) FROM table1} |
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133 | } {150} |
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134 | do_test delete-5.4.1 { |
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135 | execsql "DELETE FROM table1 WHERE f1>50" |
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136 | db changes |
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137 | } [db one {SELECT count(*) FROM table1 WHERE f1>50}] |
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138 | do_test delete-5.4.2 { |
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139 | execsql {SELECT count(*) FROM table1} |
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140 | } {37} |
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141 | do_test delete-5.5 { |
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142 | for {set i 1} {$i<=70} {incr i 3} { |
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143 | execsql "DELETE FROM table1 WHERE f1==$i" |
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144 | } |
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145 | execsql {SELECT f1 FROM table1 ORDER BY f1} |
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146 | } {2 3 6 8 11 12 14 15 18 20 23 24 26 27 30 32 35 36 38 39 42 44 47 48 50} |
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147 | do_test delete-5.6 { |
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148 | for {set i 1} {$i<40} {incr i} { |
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149 | execsql "DELETE FROM table1 WHERE f1==$i" |
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150 | } |
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151 | execsql {SELECT f1 FROM table1 ORDER BY f1} |
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152 | } {42 44 47 48 50} |
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153 | do_test delete-5.7 { |
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154 | execsql "DELETE FROM table1 WHERE f1!=48" |
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155 | execsql {SELECT f1 FROM table1 ORDER BY f1} |
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156 | } {48} |
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157 | integrity_check delete-5.8 |
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158 | |||
159 | |||
160 | # Delete large quantities of data. We want to test the List overflow |
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161 | # mechanism in the vdbe. |
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162 | # |
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163 | do_test delete-6.1 { |
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164 | execsql {BEGIN; DELETE FROM table1} |
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165 | for {set i 1} {$i<=3000} {incr i} { |
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166 | execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])" |
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167 | } |
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168 | execsql {DELETE FROM table2} |
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169 | for {set i 1} {$i<=3000} {incr i} { |
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170 | execsql "INSERT INTO table2 VALUES($i,[expr {$i*$i}])" |
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171 | } |
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172 | execsql {COMMIT} |
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173 | execsql {SELECT count(*) FROM table1} |
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174 | } {3000} |
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175 | do_test delete-6.2 { |
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176 | execsql {SELECT count(*) FROM table2} |
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177 | } {3000} |
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178 | do_test delete-6.3 { |
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179 | execsql {SELECT f1 FROM table1 WHERE f1<10 ORDER BY f1} |
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180 | } {1 2 3 4 5 6 7 8 9} |
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181 | do_test delete-6.4 { |
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182 | execsql {SELECT f1 FROM table2 WHERE f1<10 ORDER BY f1} |
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183 | } {1 2 3 4 5 6 7 8 9} |
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184 | do_test delete-6.5.1 { |
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185 | execsql {DELETE FROM table1 WHERE f1>7} |
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186 | db changes |
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187 | } {2993} |
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188 | do_test delete-6.5.2 { |
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189 | execsql {SELECT f1 FROM table1 ORDER BY f1} |
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190 | } {1 2 3 4 5 6 7} |
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191 | do_test delete-6.6 { |
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192 | execsql {DELETE FROM table2 WHERE f1>7} |
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193 | execsql {SELECT f1 FROM table2 ORDER BY f1} |
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194 | } {1 2 3 4 5 6 7} |
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195 | do_test delete-6.7 { |
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196 | execsql {DELETE FROM table1} |
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197 | execsql {SELECT f1 FROM table1} |
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198 | } {} |
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199 | do_test delete-6.8 { |
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200 | execsql {INSERT INTO table1 VALUES(2,3)} |
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201 | execsql {SELECT f1 FROM table1} |
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202 | } {2} |
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203 | do_test delete-6.9 { |
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204 | execsql {DELETE FROM table2} |
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205 | execsql {SELECT f1 FROM table2} |
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206 | } {} |
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207 | do_test delete-6.10 { |
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208 | execsql {INSERT INTO table2 VALUES(2,3)} |
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209 | execsql {SELECT f1 FROM table2} |
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210 | } {2} |
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211 | integrity_check delete-6.11 |
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212 | |||
213 | do_test delete-7.1 { |
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214 | execsql { |
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215 | CREATE TABLE t3(a); |
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216 | INSERT INTO t3 VALUES(1); |
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217 | INSERT INTO t3 SELECT a+1 FROM t3; |
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218 | INSERT INTO t3 SELECT a+2 FROM t3; |
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219 | SELECT * FROM t3; |
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220 | } |
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221 | } {1 2 3 4} |
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222 | ifcapable {trigger} { |
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223 | do_test delete-7.2 { |
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224 | execsql { |
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225 | CREATE TABLE cnt(del); |
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226 | INSERT INTO cnt VALUES(0); |
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227 | CREATE TRIGGER r1 AFTER DELETE ON t3 FOR EACH ROW BEGIN |
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228 | UPDATE cnt SET del=del+1; |
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229 | END; |
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230 | DELETE FROM t3 WHERE a<2; |
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231 | SELECT * FROM t3; |
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232 | } |
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233 | } {2 3 4} |
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234 | do_test delete-7.3 { |
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235 | execsql { |
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236 | SELECT * FROM cnt; |
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237 | } |
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238 | } {1} |
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239 | do_test delete-7.4 { |
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240 | execsql { |
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241 | DELETE FROM t3; |
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242 | SELECT * FROM t3; |
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243 | } |
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244 | } {} |
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245 | do_test delete-7.5 { |
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246 | execsql { |
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247 | SELECT * FROM cnt; |
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248 | } |
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249 | } {4} |
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250 | do_test delete-7.6 { |
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251 | execsql { |
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252 | INSERT INTO t3 VALUES(1); |
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253 | INSERT INTO t3 SELECT a+1 FROM t3; |
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254 | INSERT INTO t3 SELECT a+2 FROM t3; |
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255 | CREATE TABLE t4 AS SELECT * FROM t3; |
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256 | PRAGMA count_changes=ON; |
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257 | DELETE FROM t3; |
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258 | DELETE FROM t4; |
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259 | } |
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260 | } {4 4} |
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261 | } ;# endif trigger |
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262 | ifcapable {!trigger} { |
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263 | execsql {DELETE FROM t3} |
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264 | } |
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265 | integrity_check delete-7.7 |
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266 | |||
267 | # Make sure error messages are consistent when attempting to delete |
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268 | # from a read-only database. Ticket #304. |
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269 | # |
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270 | do_test delete-8.0 { |
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271 | execsql { |
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272 | PRAGMA count_changes=OFF; |
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273 | INSERT INTO t3 VALUES(123); |
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274 | SELECT * FROM t3; |
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275 | } |
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276 | } {123} |
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277 | db close |
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278 | catch {file delete -force test.db-journal} |
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279 | catch {file attributes test.db -permissions 0444} |
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280 | catch {file attributes test.db -readonly 1} |
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281 | sqlite3 db test.db |
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282 | set ::DB [sqlite3_connection_pointer db] |
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283 | do_test delete-8.1 { |
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284 | catchsql { |
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285 | DELETE FROM t3; |
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286 | } |
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287 | } {1 {attempt to write a readonly database}} |
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288 | do_test delete-8.2 { |
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289 | execsql {SELECT * FROM t3} |
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290 | } {123} |
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291 | do_test delete-8.3 { |
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292 | catchsql { |
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293 | DELETE FROM t3 WHERE 1; |
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294 | } |
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295 | } {1 {attempt to write a readonly database}} |
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296 | do_test delete-8.4 { |
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297 | execsql {SELECT * FROM t3} |
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298 | } {123} |
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299 | |||
300 | # Update for v3: In v2 the DELETE statement would succeed because no |
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301 | # database writes actually occur. Version 3 refuses to open a transaction |
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302 | # on a read-only file, so the statement fails. |
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303 | do_test delete-8.5 { |
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304 | catchsql { |
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305 | DELETE FROM t3 WHERE a<100; |
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306 | } |
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307 | # v2 result: {0 {}} |
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308 | } {1 {attempt to write a readonly database}} |
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309 | do_test delete-8.6 { |
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310 | execsql {SELECT * FROM t3} |
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311 | } {123} |
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312 | integrity_check delete-8.7 |
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313 | |||
314 | # Need to do the following for tcl 8.5 on mac. On that configuration, the |
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315 | # -readonly flag is taken so seriously that a subsequent [file delete -force] |
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316 | # (required before the next test file can be executed) will fail. |
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317 | # |
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318 | catch {file attributes test.db -readonly 0} |
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319 | db close |
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320 | file delete -force test.db test.db-journal |
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321 | |||
322 | # The following tests verify that SQLite correctly handles the case |
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323 | # where an index B-Tree is being scanned, the rowid column being read |
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324 | # from each index entry and another statement deletes some rows from |
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325 | # the index B-Tree. At one point this (obscure) scenario was causing |
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326 | # SQLite to return spurious SQLITE_CORRUPT errors and arguably incorrect |
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327 | # query results. |
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328 | # |
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329 | do_test delete-9.1 { |
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330 | sqlite3 db test.db |
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331 | execsql { |
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332 | CREATE TABLE t5(a, b); |
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333 | CREATE TABLE t6(c, d); |
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334 | INSERT INTO t5 VALUES(1, 2); |
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335 | INSERT INTO t5 VALUES(3, 4); |
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336 | INSERT INTO t5 VALUES(5, 6); |
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337 | INSERT INTO t6 VALUES('a', 'b'); |
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338 | INSERT INTO t6 VALUES('c', 'd'); |
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339 | CREATE INDEX i5 ON t5(a); |
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340 | CREATE INDEX i6 ON t6(c); |
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341 | } |
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342 | } {} |
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343 | do_test delete-9.2 { |
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344 | set res [list] |
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345 | db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } { |
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346 | if {$r==2} { db eval { DELETE FROM t5 } } |
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347 | lappend res $r $c $d |
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348 | } |
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349 | set res |
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350 | } {1 a b 1 c d 2 a b {} c d} |
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351 | do_test delete-9.3 { |
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352 | execsql { |
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353 | INSERT INTO t5 VALUES(1, 2); |
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354 | INSERT INTO t5 VALUES(3, 4); |
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355 | INSERT INTO t5 VALUES(5, 6); |
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356 | } |
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357 | set res [list] |
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358 | db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } { |
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359 | if {$r==2} { db eval { DELETE FROM t5 WHERE rowid = 2 } } |
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360 | lappend res $r $c $d |
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361 | } |
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362 | set res |
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363 | } {1 a b 1 c d 2 a b {} c d 3 a b 3 c d} |
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364 | do_test delete-9.4 { |
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365 | execsql { |
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366 | DELETE FROM t5; |
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367 | INSERT INTO t5 VALUES(1, 2); |
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368 | INSERT INTO t5 VALUES(3, 4); |
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369 | INSERT INTO t5 VALUES(5, 6); |
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370 | } |
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371 | set res [list] |
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372 | db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } { |
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373 | if {$r==2} { db eval { DELETE FROM t5 WHERE rowid = 1 } } |
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374 | lappend res $r $c $d |
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375 | } |
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376 | set res |
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377 | } {1 a b 1 c d 2 a b 2 c d 3 a b 3 c d} |
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378 | do_test delete-9.5 { |
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379 | execsql { |
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380 | DELETE FROM t5; |
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381 | INSERT INTO t5 VALUES(1, 2); |
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382 | INSERT INTO t5 VALUES(3, 4); |
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383 | INSERT INTO t5 VALUES(5, 6); |
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384 | } |
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385 | set res [list] |
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386 | db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } { |
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387 | if {$r==2} { db eval { DELETE FROM t5 WHERE rowid = 3 } } |
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388 | lappend res $r $c $d |
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389 | } |
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390 | set res |
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391 | } {1 a b 1 c d 2 a b 2 c d} |
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392 | |||
393 | |||
394 | finish_test |