author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:57:14 +0300 | |
branch | RCL_3 |
changeset 23 | 26645d81f48d |
parent 0 | 08ec8eefde2f |
permissions | -rw-r--r-- |
0
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# 2006 October 27 |
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# |
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# The author disclaims copyright to this source code. In place of |
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# a legal notice, here is a blessing: |
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# |
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# May you do good and not evil. |
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# May you find forgiveness for yourself and forgive others. |
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# May you share freely, never taking more than you give. |
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# |
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#*********************************************************************** |
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# This file implements regression tests for SQLite library. The |
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# focus of this file is testing the use of indices in WHERE clauses. |
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# This file was created when support for optimizing IS NULL phrases |
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# was added. And so the principle purpose of this file is to test |
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# that IS NULL phrases are correctly optimized. But you can never |
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# have too many tests, so some other tests are thrown in as well. |
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# |
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# $Id: where4.test,v 1.6 2007/12/10 05:03:48 danielk1977 Exp $ |
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|
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set testdir [file dirname $argv0] |
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source $testdir/tester.tcl |
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|
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ifcapable !tclvar||!bloblit { |
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finish_test |
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return |
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} |
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|
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# Build some test data |
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# |
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do_test where4-1.0 { |
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execsql { |
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CREATE TABLE t1(w, x, y); |
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CREATE INDEX i1wxy ON t1(w,x,y); |
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INSERT INTO t1 VALUES(1,2,3); |
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INSERT INTO t1 VALUES(1,NULL,3); |
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INSERT INTO t1 VALUES('a','b','c'); |
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INSERT INTO t1 VALUES('a',NULL,'c'); |
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INSERT INTO t1 VALUES(X'78',x'79',x'7a'); |
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INSERT INTO t1 VALUES(X'78',NULL,X'7A'); |
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INSERT INTO t1 VALUES(NULL,NULL,NULL); |
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SELECT count(*) FROM t1; |
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} |
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} {7} |
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|
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# Do an SQL statement. Append the search count to the end of the result. |
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# |
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proc count sql { |
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set ::sqlite_search_count 0 |
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return [concat [execsql $sql] $::sqlite_search_count] |
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} |
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|
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# Verify that queries use an index. We are using the special variable |
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# "sqlite_search_count" which tallys the number of executions of MoveTo |
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# and Next operators in the VDBE. By verifing that the search count is |
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# small we can be assured that indices are being used properly. |
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# |
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do_test where4-1.1 { |
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count {SELECT rowid FROM t1 WHERE w IS NULL} |
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} {7 2} |
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do_test where4-1.2 { |
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count {SELECT rowid FROM t1 WHERE +w IS NULL} |
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} {7 6} |
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do_test where4-1.3 { |
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count {SELECT rowid FROM t1 WHERE w=1 AND x IS NULL} |
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} {2 2} |
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do_test where4-1.4 { |
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count {SELECT rowid FROM t1 WHERE w=1 AND +x IS NULL} |
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} {2 3} |
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do_test where4-1.5 { |
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count {SELECT rowid FROM t1 WHERE w=1 AND x>0} |
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} {1 2} |
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do_test where4-1.6 { |
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count {SELECT rowid FROM t1 WHERE w=1 AND x<9} |
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} {1 3} |
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do_test where4-1.7 { |
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count {SELECT rowid FROM t1 WHERE w=1 AND x IS NULL AND y=3} |
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} {2 2} |
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do_test where4-1.8 { |
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count {SELECT rowid FROM t1 WHERE w=1 AND x IS NULL AND y>2} |
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} {2 2} |
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do_test where4-1.9 { |
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count {SELECT rowid FROM t1 WHERE w='a' AND x IS NULL AND y='c'} |
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} {4 2} |
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do_test where4-1.10 { |
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count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL} |
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} {6 2} |
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do_test where4-1.11 { |
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count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL AND y=123} |
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} {1} |
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do_test where4-1.12 { |
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count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL AND y=x'7A'} |
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} {6 2} |
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do_test where4-1.13 { |
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count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL} |
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} {7 2} |
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do_test where4-1.14 { |
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count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL AND y IS NULL} |
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} {7 2} |
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do_test where4-1.15 { |
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100 |
count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL AND y<0} |
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101 |
} {2} |
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102 |
do_test where4-1.16 { |
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103 |
count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL AND y>=0} |
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|
104 |
} {1} |
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|
105 |
|
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106 |
do_test where4-2.1 { |
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107 |
execsql {SELECT rowid FROM t1 ORDER BY w, x, y} |
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108 |
} {7 2 1 4 3 6 5} |
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109 |
do_test where4-2.2 { |
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110 |
execsql {SELECT rowid FROM t1 ORDER BY w DESC, x, y} |
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111 |
} {6 5 4 3 2 1 7} |
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112 |
do_test where4-2.3 { |
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113 |
execsql {SELECT rowid FROM t1 ORDER BY w, x DESC, y} |
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114 |
} {7 1 2 3 4 5 6} |
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115 |
|
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116 |
|
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117 |
# Ticket #2177 |
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118 |
# |
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119 |
# Suppose you have a left join where the right table of the left |
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120 |
# join (the one that can be NULL) has an index on two columns. |
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121 |
# The first indexed column is used in the ON clause of the join. |
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122 |
# The second indexed column is used in the WHERE clause with an IS NULL |
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123 |
# constraint. It is not allowed to use the IS NULL optimization to |
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124 |
# optimize the query because the second column might be NULL because |
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125 |
# the right table did not match - something the index does not know |
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126 |
# about. |
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127 |
# |
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128 |
do_test where4-3.1 { |
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129 |
execsql { |
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130 |
CREATE TABLE t2(a); |
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131 |
INSERT INTO t2 VALUES(1); |
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132 |
INSERT INTO t2 VALUES(2); |
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133 |
INSERT INTO t2 VALUES(3); |
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134 |
CREATE TABLE t3(x,y,UNIQUE(x,y)); |
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135 |
INSERT INTO t3 VALUES(1,11); |
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136 |
INSERT INTO t3 VALUES(2,NULL); |
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137 |
|
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138 |
SELECT * FROM t2 LEFT JOIN t3 ON a=x WHERE +y IS NULL; |
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139 |
} |
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140 |
} {2 2 {} 3 {} {}} |
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141 |
do_test where4-3.2 { |
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142 |
execsql { |
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143 |
SELECT * FROM t2 LEFT JOIN t3 ON a=x WHERE y IS NULL; |
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144 |
} |
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145 |
} {2 2 {} 3 {} {}} |
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146 |
|
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147 |
# Ticket #2189. Probably the same bug as #2177. |
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148 |
# |
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149 |
do_test where4-4.1 { |
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150 |
execsql { |
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151 |
CREATE TABLE test(col1 TEXT PRIMARY KEY); |
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152 |
INSERT INTO test(col1) values('a'); |
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153 |
INSERT INTO test(col1) values('b'); |
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154 |
INSERT INTO test(col1) values('c'); |
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155 |
CREATE TABLE test2(col1 TEXT PRIMARY KEY); |
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156 |
INSERT INTO test2(col1) values('a'); |
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157 |
INSERT INTO test2(col1) values('b'); |
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158 |
INSERT INTO test2(col1) values('c'); |
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|
159 |
SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1 |
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|
160 |
WHERE +t2.col1 IS NULL; |
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|
161 |
} |
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|
162 |
} {} |
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163 |
do_test where4-4.2 { |
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164 |
execsql { |
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|
165 |
SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1 |
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166 |
WHERE t2.col1 IS NULL; |
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167 |
} |
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168 |
} {} |
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169 |
do_test where4-4.3 { |
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170 |
execsql { |
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171 |
SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1 |
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|
172 |
WHERE +t1.col1 IS NULL; |
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|
173 |
} |
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|
174 |
} {} |
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175 |
do_test where4-4.4 { |
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176 |
execsql { |
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177 |
SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1 |
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178 |
WHERE t1.col1 IS NULL; |
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179 |
} |
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180 |
} {} |
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181 |
|
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182 |
# Ticket #2273. Problems with IN operators and NULLs. |
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183 |
# |
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184 |
ifcapable subquery { |
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185 |
do_test where4-5.1 { |
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186 |
execsql { |
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187 |
CREATE TABLE t4(x,y,z,PRIMARY KEY(x,y)); |
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188 |
} |
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189 |
execsql { |
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190 |
SELECT * |
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191 |
FROM t2 LEFT JOIN t4 b1 |
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192 |
LEFT JOIN t4 b2 ON b2.x=b1.x AND b2.y IN (b1.y); |
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193 |
} |
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194 |
} {1 {} {} {} {} {} {} 2 {} {} {} {} {} {} 3 {} {} {} {} {} {}} |
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195 |
do_test where4-5.2 { |
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196 |
execsql { |
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197 |
INSERT INTO t4 VALUES(1,1,11); |
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198 |
INSERT INTO t4 VALUES(1,2,12); |
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199 |
INSERT INTO t4 VALUES(1,3,13); |
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200 |
INSERT INTO t4 VALUES(2,2,22); |
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|
201 |
SELECT rowid FROM t4 WHERE x IN (1,9,2,5) AND y IN (1,3,NULL,2) AND z!=13; |
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} |
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} {1 2 4} |
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do_test where4-5.3 { |
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execsql { |
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SELECT rowid FROM t4 WHERE x IN (1,9,NULL,2) AND y IN (1,3,2) AND z!=13; |
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} |
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} {1 2 4} |
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do_test where4-6.1 { |
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execsql { |
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CREATE TABLE t5(a,b,c,d,e,f,UNIQUE(a,b,c,d,e,f)); |
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INSERT INTO t5 VALUES(1,1,1,1,1,11111); |
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INSERT INTO t5 VALUES(2,2,2,2,2,22222); |
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INSERT INTO t5 VALUES(1,2,3,4,5,12345); |
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INSERT INTO t5 VALUES(2,3,4,5,6,23456); |
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} |
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execsql { |
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SELECT rowid FROM t5 |
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WHERE a IN (1,9,2) AND b=2 AND c IN (1,2,3,4) AND d>0 |
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} |
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} {3 2} |
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do_test where4-6.2 { |
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execsql { |
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SELECT rowid FROM t5 |
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WHERE a IN (1,NULL,2) AND b=2 AND c IN (1,2,3,4) AND d>0 |
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} |
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} {3 2} |
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do_test where4-7.1 { |
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execsql { |
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CREATE TABLE t6(y,z,PRIMARY KEY(y,z)); |
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} |
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execsql { |
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SELECT * FROM t6 WHERE y=NULL AND z IN ('hello'); |
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} |
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} {} |
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|
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integrity_check {where4-99.0} |
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|
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do_test where4-7.1 { |
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execsql { |
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BEGIN; |
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CREATE TABLE t8(a, b, c, d); |
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CREATE INDEX t8_i ON t8(a, b, c); |
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CREATE TABLE t7(i); |
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|
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INSERT INTO t7 VALUES(1); |
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INSERT INTO t7 SELECT i*2 FROM t7; |
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INSERT INTO t7 SELECT i*2 FROM t7; |
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INSERT INTO t7 SELECT i*2 FROM t7; |
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INSERT INTO t7 SELECT i*2 FROM t7; |
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INSERT INTO t7 SELECT i*2 FROM t7; |
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INSERT INTO t7 SELECT i*2 FROM t7; |
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|
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COMMIT; |
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} |
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} {} |
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|
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# At one point the sub-select inside the aggregate sum() function in the |
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# following query was leaking a couple of stack entries. This query |
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# runs the SELECT in a loop enough times that an assert() fails. Or rather, |
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# did fail before the bug was fixed. |
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# |
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do_test where4-7.2 { |
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execsql { |
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SELECT sum(( |
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SELECT d FROM t8 WHERE a = i AND b = i AND c < NULL |
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)) FROM t7; |
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} |
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} {{}} |
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|
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}; #ifcapable subquery |
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|
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finish_test |