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 SELECT statement. |
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13 | # |
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14 | # $Id: select2.test,v 1.28 2009/01/15 15:23:59 drh Exp $ |
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15 | |||
16 | set testdir [file dirname $argv0] |
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17 | source $testdir/tester.tcl |
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18 | |||
19 | # Create a table with some data |
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20 | # |
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21 | execsql {CREATE TABLE tbl1(f1 int, f2 int)} |
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22 | execsql {BEGIN} |
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23 | for {set i 0} {$i<=30} {incr i} { |
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24 | execsql "INSERT INTO tbl1 VALUES([expr {$i%9}],[expr {$i%10}])" |
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25 | } |
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26 | execsql {COMMIT} |
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27 | |||
28 | # Do a second query inside a first. |
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29 | # |
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30 | do_test select2-1.1 { |
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31 | set sql {SELECT DISTINCT f1 FROM tbl1 ORDER BY f1} |
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32 | set r {} |
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33 | catch {unset data} |
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34 | db eval $sql data { |
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35 | set f1 $data(f1) |
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36 | lappend r $f1: |
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37 | set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2" |
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38 | db eval $sql2 d2 { |
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39 | lappend r $d2(f2) |
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40 | } |
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41 | } |
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42 | set r |
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43 | } {0: 0 7 8 9 1: 0 1 8 9 2: 0 1 2 9 3: 0 1 2 3 4: 2 3 4 5: 3 4 5 6: 4 5 6 7: 5 6 7 8: 6 7 8} |
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44 | |||
45 | do_test select2-1.2 { |
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46 | set sql {SELECT DISTINCT f1 FROM tbl1 WHERE f1>3 AND f1<5} |
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47 | set r {} |
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48 | db eval $sql data { |
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49 | set f1 $data(f1) |
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50 | lappend r $f1: |
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51 | set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2" |
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52 | db eval $sql2 d2 { |
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53 | lappend r $d2(f2) |
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54 | } |
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55 | } |
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56 | set r |
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57 | } {4: 2 3 4} |
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58 | unset data |
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59 | |||
60 | # Create a largish table. Do this twice, once using the TCL cache and once |
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61 | # without. Compare the performance to make sure things go faster with the |
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62 | # cache turned on. |
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63 | # |
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64 | ifcapable tclvar { |
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65 | do_test select2-2.0.1 { |
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66 | set t1 [time { |
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67 | execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;} |
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68 | for {set i 1} {$i<=30000} {incr i} { |
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69 | set i2 [expr {$i*2}] |
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70 | set i3 [expr {$i*3}] |
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71 | db eval {INSERT INTO tbl2 VALUES($i,$i2,$i3)} |
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72 | } |
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73 | execsql {COMMIT} |
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74 | }] |
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75 | list |
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76 | } {} |
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77 | puts "time with cache: $::t1" |
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78 | } |
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79 | catch {execsql {DROP TABLE tbl2}} |
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80 | do_test select2-2.0.2 { |
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81 | set t2 [time { |
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82 | execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;} |
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83 | for {set i 1} {$i<=30000} {incr i} { |
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84 | set i2 [expr {$i*2}] |
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85 | set i3 [expr {$i*3}] |
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86 | execsql "INSERT INTO tbl2 VALUES($i,$i2,$i3)" |
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87 | } |
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88 | execsql {COMMIT} |
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89 | }] |
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90 | list |
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91 | } {} |
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92 | puts "time without cache: $t2" |
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93 | #ifcapable tclvar { |
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94 | # do_test select2-2.0.3 { |
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95 | # expr {[lindex $t1 0]<[lindex $t2 0]} |
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96 | # } 1 |
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97 | #} |
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98 | |||
99 | do_test select2-2.1 { |
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100 | execsql {SELECT count(*) FROM tbl2} |
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101 | } {30000} |
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102 | do_test select2-2.2 { |
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103 | execsql {SELECT count(*) FROM tbl2 WHERE f2>1000} |
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104 | } {29500} |
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105 | |||
106 | do_test select2-3.1 { |
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107 | execsql {SELECT f1 FROM tbl2 WHERE 1000=f2} |
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108 | } {500} |
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109 | |||
110 | do_test select2-3.2a { |
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111 | execsql {CREATE INDEX idx1 ON tbl2(f2)} |
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112 | } {} |
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113 | do_test select2-3.2b { |
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114 | execsql {SELECT f1 FROM tbl2 WHERE 1000=f2} |
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115 | } {500} |
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116 | do_test select2-3.2c { |
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117 | execsql {SELECT f1 FROM tbl2 WHERE f2=1000} |
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118 | } {500} |
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119 | do_test select2-3.2d { |
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120 | set sqlite_search_count 0 |
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121 | execsql {SELECT * FROM tbl2 WHERE 1000=f2} |
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122 | set sqlite_search_count |
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123 | } {3} |
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124 | do_test select2-3.2e { |
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125 | set sqlite_search_count 0 |
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126 | execsql {SELECT * FROM tbl2 WHERE f2=1000} |
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127 | set sqlite_search_count |
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128 | } {3} |
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129 | |||
130 | # Make sure queries run faster with an index than without |
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131 | # |
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132 | do_test select2-3.3 { |
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133 | execsql {DROP INDEX idx1} |
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134 | set sqlite_search_count 0 |
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135 | execsql {SELECT f1 FROM tbl2 WHERE f2==2000} |
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136 | set sqlite_search_count |
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137 | } {29999} |
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138 | |||
139 | # Make sure we can optimize functions in the WHERE clause that |
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140 | # use fields from two or more different table. (Bug #6) |
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141 | # |
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142 | do_test select2-4.1 { |
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143 | execsql { |
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144 | CREATE TABLE aa(a); |
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145 | CREATE TABLE bb(b); |
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146 | INSERT INTO aa VALUES(1); |
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147 | INSERT INTO aa VALUES(3); |
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148 | INSERT INTO bb VALUES(2); |
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149 | INSERT INTO bb VALUES(4); |
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150 | SELECT * FROM aa, bb WHERE max(a,b)>2; |
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151 | } |
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152 | } {1 4 3 2 3 4} |
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153 | do_test select2-4.2 { |
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154 | execsql { |
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155 | INSERT INTO bb VALUES(0); |
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156 | SELECT * FROM aa CROSS JOIN bb WHERE b; |
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157 | } |
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158 | } {1 2 1 4 3 2 3 4} |
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159 | do_test select2-4.3 { |
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160 | execsql { |
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161 | SELECT * FROM aa CROSS JOIN bb WHERE NOT b; |
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162 | } |
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163 | } {1 0 3 0} |
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164 | do_test select2-4.4 { |
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165 | execsql { |
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166 | SELECT * FROM aa, bb WHERE min(a,b); |
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167 | } |
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168 | } {1 2 1 4 3 2 3 4} |
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169 | do_test select2-4.5 { |
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170 | execsql { |
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171 | SELECT * FROM aa, bb WHERE NOT min(a,b); |
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172 | } |
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173 | } {1 0 3 0} |
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174 | do_test select2-4.6 { |
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175 | execsql { |
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176 | SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 1 END; |
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177 | } |
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178 | } {1 2 3 4} |
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179 | do_test select2-4.7 { |
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180 | execsql { |
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181 | SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 0 ELSE 1 END; |
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182 | } |
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183 | } {1 4 1 0 3 2 3 0} |
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184 | |||
185 | finish_test |