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 aggregate functions and the |
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13 | # GROUP BY and HAVING clauses of SELECT statements. |
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14 | # |
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15 | # $Id: select5.test,v 1.20 2008/08/21 14:15:59 drh Exp $ |
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16 | |||
17 | set testdir [file dirname $argv0] |
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18 | source $testdir/tester.tcl |
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19 | |||
20 | # Build some test data |
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21 | # |
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22 | execsql { |
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23 | CREATE TABLE t1(x int, y int); |
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24 | BEGIN; |
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25 | } |
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26 | for {set i 1} {$i<32} {incr i} { |
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27 | for {set j 0} {(1<<$j)<$i} {incr j} {} |
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28 | execsql "INSERT INTO t1 VALUES([expr {32-$i}],[expr {10-$j}])" |
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29 | } |
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30 | execsql { |
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31 | COMMIT |
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32 | } |
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33 | |||
34 | do_test select5-1.0 { |
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35 | execsql {SELECT DISTINCT y FROM t1 ORDER BY y} |
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36 | } {5 6 7 8 9 10} |
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37 | |||
38 | # Sort by an aggregate function. |
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39 | # |
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40 | do_test select5-1.1 { |
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41 | execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY y} |
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42 | } {5 15 6 8 7 4 8 2 9 1 10 1} |
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43 | do_test select5-1.2 { |
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44 | execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY count(*), y} |
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45 | } {9 1 10 1 8 2 7 4 6 8 5 15} |
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46 | do_test select5-1.3 { |
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47 | execsql {SELECT count(*), y FROM t1 GROUP BY y ORDER BY count(*), y} |
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48 | } {1 9 1 10 2 8 4 7 8 6 15 5} |
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49 | |||
50 | # Some error messages associated with aggregates and GROUP BY |
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51 | # |
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52 | do_test select5-2.1.1 { |
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53 | catchsql { |
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54 | SELECT y, count(*) FROM t1 GROUP BY z ORDER BY y |
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55 | } |
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56 | } {1 {no such column: z}} |
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57 | do_test select5-2.1.2 { |
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58 | catchsql { |
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59 | SELECT y, count(*) FROM t1 GROUP BY temp.t1.y ORDER BY y |
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60 | } |
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61 | } {1 {no such column: temp.t1.y}} |
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62 | do_test select5-2.2 { |
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63 | set v [catch {execsql { |
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64 | SELECT y, count(*) FROM t1 GROUP BY z(y) ORDER BY y |
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65 | }} msg] |
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66 | lappend v $msg |
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67 | } {1 {no such function: z}} |
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68 | do_test select5-2.3 { |
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69 | set v [catch {execsql { |
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70 | SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<3 ORDER BY y |
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71 | }} msg] |
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72 | lappend v $msg |
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73 | } {0 {8 2 9 1 10 1}} |
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74 | do_test select5-2.4 { |
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75 | set v [catch {execsql { |
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76 | SELECT y, count(*) FROM t1 GROUP BY y HAVING z(y)<3 ORDER BY y |
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77 | }} msg] |
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78 | lappend v $msg |
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79 | } {1 {no such function: z}} |
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80 | do_test select5-2.5 { |
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81 | set v [catch {execsql { |
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82 | SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<z ORDER BY y |
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83 | }} msg] |
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84 | lappend v $msg |
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85 | } {1 {no such column: z}} |
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86 | |||
87 | # Get the Agg function to rehash in vdbe.c |
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88 | # |
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89 | do_test select5-3.1 { |
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90 | execsql { |
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91 | SELECT x, count(*), avg(y) FROM t1 GROUP BY x HAVING x<4 ORDER BY x |
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92 | } |
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93 | } {1 1 5.0 2 1 5.0 3 1 5.0} |
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94 | |||
95 | # Run various aggregate functions when the count is zero. |
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96 | # |
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97 | do_test select5-4.1 { |
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98 | execsql { |
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99 | SELECT avg(x) FROM t1 WHERE x>100 |
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100 | } |
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101 | } {{}} |
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102 | do_test select5-4.2 { |
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103 | execsql { |
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104 | SELECT count(x) FROM t1 WHERE x>100 |
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105 | } |
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106 | } {0} |
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107 | do_test select5-4.3 { |
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108 | execsql { |
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109 | SELECT min(x) FROM t1 WHERE x>100 |
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110 | } |
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111 | } {{}} |
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112 | do_test select5-4.4 { |
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113 | execsql { |
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114 | SELECT max(x) FROM t1 WHERE x>100 |
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115 | } |
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116 | } {{}} |
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117 | do_test select5-4.5 { |
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118 | execsql { |
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119 | SELECT sum(x) FROM t1 WHERE x>100 |
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120 | } |
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121 | } {{}} |
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122 | |||
123 | # Some tests for queries with a GROUP BY clause but no aggregate functions. |
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124 | # |
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125 | # Note: The query in test cases 5.1 through 5.5 are not legal SQL. So if the |
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126 | # implementation changes in the future and it returns different results, |
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127 | # this is not such a big deal. |
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128 | # |
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129 | do_test select5-5.1 { |
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130 | execsql { |
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131 | CREATE TABLE t2(a, b, c); |
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132 | INSERT INTO t2 VALUES(1, 2, 3); |
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133 | INSERT INTO t2 VALUES(1, 4, 5); |
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134 | INSERT INTO t2 VALUES(6, 4, 7); |
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135 | CREATE INDEX t2_idx ON t2(a); |
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136 | } |
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137 | } {} |
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138 | do_test select5-5.2 { |
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139 | execsql { |
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140 | SELECT a FROM t2 GROUP BY a; |
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141 | } |
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142 | } {1 6} |
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143 | do_test select5-5.3 { |
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144 | execsql { |
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145 | SELECT a FROM t2 WHERE a>2 GROUP BY a; |
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146 | } |
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147 | } {6} |
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148 | do_test select5-5.4 { |
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149 | execsql { |
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150 | SELECT a, b FROM t2 GROUP BY a, b; |
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151 | } |
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152 | } {1 2 1 4 6 4} |
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153 | do_test select5-5.5 { |
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154 | execsql { |
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155 | SELECT a, b FROM t2 GROUP BY a; |
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156 | } |
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157 | } {1 4 6 4} |
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158 | |||
159 | # Test rendering of columns for the GROUP BY clause. |
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160 | # |
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161 | do_test select5-5.11 { |
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162 | execsql { |
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163 | SELECT max(c), b*a, b, a FROM t2 GROUP BY b*a, b, a |
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164 | } |
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165 | } {3 2 2 1 5 4 4 1 7 24 4 6} |
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166 | |||
167 | # NULL compare equal to each other for the purposes of processing |
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168 | # the GROUP BY clause. |
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169 | # |
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170 | do_test select5-6.1 { |
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171 | execsql { |
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172 | CREATE TABLE t3(x,y); |
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173 | INSERT INTO t3 VALUES(1,NULL); |
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174 | INSERT INTO t3 VALUES(2,NULL); |
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175 | INSERT INTO t3 VALUES(3,4); |
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176 | SELECT count(x), y FROM t3 GROUP BY y ORDER BY 1 |
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177 | } |
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178 | } {1 4 2 {}} |
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179 | do_test select5-6.2 { |
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180 | execsql { |
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181 | CREATE TABLE t4(x,y,z); |
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182 | INSERT INTO t4 VALUES(1,2,NULL); |
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183 | INSERT INTO t4 VALUES(2,3,NULL); |
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184 | INSERT INTO t4 VALUES(3,NULL,5); |
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185 | INSERT INTO t4 VALUES(4,NULL,6); |
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186 | INSERT INTO t4 VALUES(4,NULL,6); |
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187 | INSERT INTO t4 VALUES(5,NULL,NULL); |
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188 | INSERT INTO t4 VALUES(5,NULL,NULL); |
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189 | INSERT INTO t4 VALUES(6,7,8); |
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190 | SELECT max(x), count(x), y, z FROM t4 GROUP BY y, z ORDER BY 1 |
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191 | } |
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192 | } {1 1 2 {} 2 1 3 {} 3 1 {} 5 4 2 {} 6 5 2 {} {} 6 1 7 8} |
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193 | |||
194 | do_test select5-7.2 { |
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195 | execsql { |
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196 | SELECT count(*), count(x) as cnt FROM t4 GROUP BY y ORDER BY cnt; |
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197 | } |
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198 | } {1 1 1 1 1 1 5 5} |
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199 | |||
200 | # See ticket #3324. |
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201 | # |
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202 | do_test select5-8.1 { |
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203 | execsql { |
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204 | CREATE TABLE t8a(a,b); |
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205 | CREATE TABLE t8b(x); |
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206 | INSERT INTO t8a VALUES('one', 1); |
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207 | INSERT INTO t8a VALUES('one', 2); |
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208 | INSERT INTO t8a VALUES('two', 3); |
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209 | INSERT INTO t8a VALUES('one', NULL); |
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210 | INSERT INTO t8b(rowid,x) VALUES(1,111); |
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211 | INSERT INTO t8b(rowid,x) VALUES(2,222); |
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212 | INSERT INTO t8b(rowid,x) VALUES(3,333); |
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213 | SELECT a, count(b) FROM t8a, t8b WHERE b=t8b.rowid GROUP BY a ORDER BY a; |
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214 | } |
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215 | } {one 2 two 1} |
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216 | do_test select5-8.2 { |
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217 | execsql { |
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218 | SELECT a, count(b) FROM t8a, t8b WHERE b=+t8b.rowid GROUP BY a ORDER BY a; |
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219 | } |
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220 | } {one 2 two 1} |
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221 | do_test select5-8.3 { |
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222 | execsql { |
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223 | SELECT t8a.a, count(t8a.b) FROM t8a, t8b WHERE t8a.b=t8b.rowid |
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224 | GROUP BY 1 ORDER BY 1; |
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225 | } |
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226 | } {one 2 two 1} |
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227 | do_test select5-8.4 { |
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228 | execsql { |
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229 | SELECT a, count(*) FROM t8a, t8b WHERE b=+t8b.rowid GROUP BY a ORDER BY a; |
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230 | } |
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231 | } {one 2 two 1} |
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232 | do_test select5-8.5 { |
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233 | execsql { |
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234 | SELECT a, count(b) FROM t8a, t8b WHERE b<x GROUP BY a ORDER BY a; |
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235 | } |
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236 | } {one 6 two 3} |
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237 | do_test select5-8.6 { |
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238 | execsql { |
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239 | SELECT a, count(t8a.b) FROM t8a, t8b WHERE b=t8b.rowid |
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240 | GROUP BY a ORDER BY 2; |
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241 | } |
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242 | } {two 1 one 2} |
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243 | do_test select5-8.7 { |
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244 | execsql { |
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245 | SELECT a, count(b) FROM t8a, t8b GROUP BY a ORDER BY 2; |
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246 | } |
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247 | } {two 3 one 6} |
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248 | do_test select5-8.8 { |
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249 | execsql { |
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250 | SELECT a, count(*) FROM t8a, t8b GROUP BY a ORDER BY 2; |
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251 | } |
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252 | } {two 3 one 9} |
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253 | |||
254 | |||
255 | |||
256 | |||
257 | finish_test |