wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # |
2 | # The author disclaims copyright to this source code. In place of |
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3 | # a legal notice, here is a blessing: |
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4 | # |
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5 | # May you do good and not evil. |
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6 | # May you find forgiveness for yourself and forgive others. |
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7 | # May you share freely, never taking more than you give. |
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8 | # |
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9 | #*********************************************************************** |
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10 | # |
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11 | # Tests to make sure that values returned by changes() and total_changes() |
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12 | # are updated properly, especially inside triggers |
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13 | # |
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14 | # Note 1: changes() remains constant within a statement and only updates |
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15 | # once the statement is finished (triggers count as part of |
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16 | # statement). |
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17 | # Note 2: changes() is changed within the context of a trigger much like |
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18 | # last_insert_rowid() (see lastinsert.test), but is restored once |
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19 | # the trigger exits. |
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20 | # Note 3: changes() is not changed by a change to a view (since everything |
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21 | # is done within instead of trigger context). |
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22 | # |
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23 | # $Id: laststmtchanges.test,v 1.7 2008/10/27 13:59:34 danielk1977 Exp $ |
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24 | |||
25 | set testdir [file dirname $argv0] |
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26 | source $testdir/tester.tcl |
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27 | |||
28 | # ---------------------------------------------------------------------------- |
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29 | # 1.x - basic tests (no triggers) |
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30 | |||
31 | # changes() set properly after insert |
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32 | do_test laststmtchanges-1.1 { |
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33 | catchsql { |
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34 | create table t0 (x); |
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35 | insert into t0 values (1); |
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36 | insert into t0 values (1); |
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37 | insert into t0 values (2); |
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38 | insert into t0 values (2); |
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39 | insert into t0 values (1); |
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40 | insert into t0 values (1); |
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41 | insert into t0 values (1); |
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42 | insert into t0 values (2); |
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43 | select changes(), total_changes(); |
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44 | } |
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45 | } {0 {1 8}} |
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46 | |||
47 | # changes() set properly after update |
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48 | do_test laststmtchanges-1.2 { |
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49 | catchsql { |
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50 | update t0 set x=3 where x=1; |
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51 | select changes(), total_changes(); |
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52 | } |
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53 | } {0 {5 13}} |
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54 | |||
55 | # There was some goofy change-counting logic in sqlite3_exec() that |
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56 | # appears to have been left over from SQLite version 2. This test |
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57 | # makes sure it has been removed. |
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58 | # |
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59 | do_test laststmtchanges-1.2.1 { |
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60 | db cache flush |
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61 | sqlite3_exec_printf db {update t0 set x=4 where x=3; select 1;} {} |
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62 | execsql {select changes()} |
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63 | } {5} |
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64 | |||
65 | # changes() unchanged within an update statement |
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66 | do_test laststmtchanges-1.3 { |
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67 | execsql {update t0 set x=3 where x=4} |
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68 | catchsql { |
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69 | update t0 set x=x+changes() where x=3; |
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70 | select count() from t0 where x=8; |
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71 | } |
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72 | } {0 5} |
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73 | |||
74 | # changes() set properly after update on table where no rows changed |
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75 | do_test laststmtchanges-1.4 { |
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76 | catchsql { |
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77 | update t0 set x=77 where x=88; |
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78 | select changes(); |
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79 | } |
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80 | } {0 0} |
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81 | |||
82 | # changes() set properly after delete from table |
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83 | do_test laststmtchanges-1.5 { |
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84 | catchsql { |
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85 | delete from t0 where x=2; |
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86 | select changes(); |
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87 | } |
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88 | } {0 3} |
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89 | |||
90 | # All remaining tests involve triggers. Skip them if triggers are not |
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91 | # supported in this build. |
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92 | # |
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93 | ifcapable {!trigger} { |
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94 | finish_test |
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95 | return |
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96 | } |
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97 | |||
98 | |||
99 | # ---------------------------------------------------------------------------- |
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100 | # 2.x - tests with after insert trigger |
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101 | |||
102 | # changes() changed properly after insert into table containing after trigger |
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103 | do_test laststmtchanges-2.1 { |
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104 | set ::tc [db total_changes] |
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105 | catchsql { |
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106 | create table t1 (k integer primary key); |
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107 | create table t2 (k integer primary key, v1, v2); |
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108 | create trigger r1 after insert on t1 for each row begin |
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109 | insert into t2 values (NULL, changes(), NULL); |
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110 | update t0 set x=x; |
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111 | update t2 set v2=changes(); |
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112 | end; |
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113 | insert into t1 values (77); |
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114 | select changes(); |
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115 | } |
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116 | } {0 1} |
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117 | |||
118 | # changes() unchanged upon entry into after insert trigger |
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119 | do_test laststmtchanges-2.2 { |
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120 | catchsql { |
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121 | select v1 from t2; |
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122 | } |
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123 | } {0 3} |
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124 | |||
125 | # changes() changed properly by update within context of after insert trigger |
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126 | do_test laststmtchanges-2.3 { |
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127 | catchsql { |
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128 | select v2 from t2; |
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129 | } |
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130 | } {0 5} |
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131 | |||
132 | # Total changes caused by firing the trigger above: |
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133 | # |
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134 | # 1 from "insert into t1 values(77)" + |
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135 | # 1 from "insert into t2 values (NULL, changes(), NULL);" + |
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136 | # 5 from "update t0 set x=x;" + |
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137 | # 1 from "update t2 set v2=changes();" |
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138 | # |
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139 | do_test laststmtchanges-2.4 { |
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140 | expr [db total_changes] - $::tc |
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141 | } {8} |
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142 | |||
143 | # ---------------------------------------------------------------------------- |
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144 | # 3.x - tests with after update trigger |
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145 | |||
146 | # changes() changed properly after update into table containing after trigger |
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147 | do_test laststmtchanges-3.1 { |
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148 | catchsql { |
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149 | drop trigger r1; |
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150 | delete from t2; delete from t2; |
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151 | create trigger r1 after update on t1 for each row begin |
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152 | insert into t2 values (NULL, changes(), NULL); |
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153 | delete from t0 where oid=1 or oid=2; |
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154 | update t2 set v2=changes(); |
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155 | end; |
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156 | update t1 set k=k; |
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157 | select changes(); |
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158 | } |
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159 | } {0 1} |
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160 | |||
161 | # changes() unchanged upon entry into after update trigger |
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162 | do_test laststmtchanges-3.2 { |
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163 | catchsql { |
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164 | select v1 from t2; |
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165 | } |
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166 | } {0 0} |
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167 | |||
168 | # changes() changed properly by delete within context of after update trigger |
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169 | do_test laststmtchanges-3.3 { |
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170 | catchsql { |
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171 | select v2 from t2; |
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172 | } |
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173 | } {0 2} |
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174 | |||
175 | # ---------------------------------------------------------------------------- |
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176 | # 4.x - tests with before delete trigger |
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177 | |||
178 | # changes() changed properly on delete from table containing before trigger |
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179 | do_test laststmtchanges-4.1 { |
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180 | catchsql { |
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181 | drop trigger r1; |
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182 | delete from t2; delete from t2; |
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183 | create trigger r1 before delete on t1 for each row begin |
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184 | insert into t2 values (NULL, changes(), NULL); |
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185 | insert into t0 values (5); |
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186 | update t2 set v2=changes(); |
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187 | end; |
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188 | delete from t1; |
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189 | select changes(); |
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190 | } |
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191 | } {0 1} |
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192 | |||
193 | # changes() unchanged upon entry into before delete trigger |
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194 | do_test laststmtchanges-4.2 { |
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195 | catchsql { |
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196 | select v1 from t2; |
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197 | } |
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198 | } {0 0} |
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199 | |||
200 | # changes() changed properly by insert within context of before delete trigger |
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201 | do_test laststmtchanges-4.3 { |
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202 | catchsql { |
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203 | select v2 from t2; |
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204 | } |
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205 | } {0 1} |
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206 | |||
207 | # ---------------------------------------------------------------------------- |
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208 | # 5.x - complex tests with temporary tables and nested instead of triggers |
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209 | # These tests cannot run if the library does not have view support enabled. |
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210 | |||
211 | ifcapable view&&tempdb { |
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212 | |||
213 | do_test laststmtchanges-5.1 { |
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214 | catchsql { |
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215 | drop table t0; drop table t1; drop table t2; |
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216 | create temp table t0(x); |
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217 | create temp table t1 (k integer primary key); |
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218 | create temp table t2 (k integer primary key); |
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219 | create temp view v1 as select * from t1; |
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220 | create temp view v2 as select * from t2; |
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221 | create temp table n1 (k integer primary key, n); |
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222 | create temp table n2 (k integer primary key, n); |
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223 | insert into t0 values (1); |
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224 | insert into t0 values (2); |
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225 | insert into t0 values (1); |
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226 | insert into t0 values (1); |
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227 | insert into t0 values (1); |
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228 | insert into t0 values (2); |
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229 | insert into t0 values (2); |
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230 | insert into t0 values (1); |
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231 | create temp trigger r1 instead of insert on v1 for each row begin |
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232 | insert into n1 values (NULL, changes()); |
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233 | update t0 set x=x*10 where x=1; |
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234 | insert into n1 values (NULL, changes()); |
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235 | insert into t1 values (NEW.k); |
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236 | insert into n1 values (NULL, changes()); |
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237 | update t0 set x=x*10 where x=0; |
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238 | insert into v2 values (100+NEW.k); |
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239 | insert into n1 values (NULL, changes()); |
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240 | end; |
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241 | create temp trigger r2 instead of insert on v2 for each row begin |
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242 | insert into n2 values (NULL, changes()); |
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243 | insert into t2 values (1000+NEW.k); |
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244 | insert into n2 values (NULL, changes()); |
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245 | update t0 set x=x*100 where x=0; |
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246 | insert into n2 values (NULL, changes()); |
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247 | delete from t0 where x=2; |
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248 | insert into n2 values (NULL, changes()); |
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249 | end; |
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250 | insert into t1 values (77); |
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251 | select changes(); |
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252 | } |
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253 | } {0 1} |
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254 | |||
255 | do_test laststmtchanges-5.2 { |
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256 | catchsql { |
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257 | delete from t1 where k=88; |
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258 | select changes(); |
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259 | } |
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260 | } {0 0} |
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261 | |||
262 | do_test laststmtchanges-5.3 { |
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263 | catchsql { |
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264 | insert into v1 values (5); |
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265 | select changes(); |
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266 | } |
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267 | } {0 0} |
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268 | |||
269 | do_test laststmtchanges-5.4 { |
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270 | catchsql { |
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271 | select n from n1; |
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272 | } |
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273 | } {0 {0 5 1 0}} |
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274 | |||
275 | do_test laststmtchanges-5.5 { |
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276 | catchsql { |
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277 | select n from n2; |
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278 | } |
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279 | } {0 {0 1 0 3}} |
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280 | |||
281 | } ;# ifcapable view |
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282 | |||
283 | |||
284 | # ---------------------------------------------------------------------------- |
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285 | # 6.x - Test "DELETE FROM <table>" in the absence of triggers |
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286 | # |
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287 | do_test laststmtchanges-6.1 { |
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288 | execsql { |
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289 | CREATE TABLE t3(a, b, c); |
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290 | INSERT INTO t3 VALUES(1, 2, 3); |
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291 | INSERT INTO t3 VALUES(4, 5, 6); |
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292 | } |
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293 | } {} |
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294 | do_test laststmtchanges-6.2 { |
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295 | execsql { |
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296 | BEGIN; |
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297 | DELETE FROM t3; |
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298 | SELECT changes(); |
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299 | } |
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300 | } {2} |
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301 | do_test laststmtchanges-6.3 { |
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302 | execsql { |
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303 | ROLLBACK; |
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304 | BEGIN; |
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305 | DELETE FROM t3 WHERE a IS NOT NULL; |
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306 | SELECT changes(); |
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307 | } |
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308 | } {2} |
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309 | do_test laststmtchanges-6.4 { |
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310 | execsql { |
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311 | ROLLBACK; |
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312 | CREATE INDEX t3_i1 ON t3(a); |
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313 | BEGIN; |
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314 | DELETE FROM t3; |
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315 | SELECT changes(); |
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316 | } |
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317 | } {2} |
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318 | do_test laststmtchanges-6.5 { |
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319 | execsql { ROLLBACK } |
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320 | set nTotalChange [execsql {SELECT total_changes()}] |
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321 | expr 0 |
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322 | } {0} |
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323 | do_test laststmtchanges-6.6 { |
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324 | execsql { |
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325 | SELECT total_changes(); |
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326 | DELETE FROM t3; |
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327 | SELECT total_changes(); |
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328 | } |
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329 | } [list $nTotalChange [expr $nTotalChange+2]] |
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330 | |||
331 | finish_test |