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| 1 # 2005 December 21 |
| 2 # |
| 3 # The author disclaims copyright to this source code. In place of |
| 4 # a legal notice, here is a blessing: |
| 5 # |
| 6 # May you do good and not evil. |
| 7 # May you find forgiveness for yourself and forgive others. |
| 8 # May you share freely, never taking more than you give. |
| 9 # |
| 10 #************************************************************************* |
| 11 # This file implements regression tests for SQLite library. The |
| 12 # focus of this script is descending indices. |
| 13 # |
| 14 # $Id: descidx2.test,v 1.5 2008/03/19 00:21:31 drh Exp $ |
| 15 # |
| 16 |
| 17 set testdir [file dirname $argv0] |
| 18 source $testdir/tester.tcl |
| 19 |
| 20 # Do not use a codec for tests in this file, as the database file is |
| 21 # manipulated directly using tcl scripts (using the [hexio_write] command). |
| 22 # |
| 23 do_not_use_codec |
| 24 |
| 25 |
| 26 db eval {PRAGMA legacy_file_format=OFF} |
| 27 |
| 28 # This procedure sets the value of the file-format in file 'test.db' |
| 29 # to $newval. Also, the schema cookie is incremented. |
| 30 # |
| 31 proc set_file_format {newval} { |
| 32 hexio_write test.db 44 [hexio_render_int32 $newval] |
| 33 set schemacookie [hexio_get_int [hexio_read test.db 40 4]] |
| 34 incr schemacookie |
| 35 hexio_write test.db 40 [hexio_render_int32 $schemacookie] |
| 36 return {} |
| 37 } |
| 38 |
| 39 # This procedure returns the value of the file-format in file 'test.db'. |
| 40 # |
| 41 proc get_file_format {{fname test.db}} { |
| 42 return [hexio_get_int [hexio_read $fname 44 4]] |
| 43 } |
| 44 |
| 45 |
| 46 # Verify that the file format starts as 4 |
| 47 # |
| 48 do_test descidx2-1.1 { |
| 49 execsql { |
| 50 CREATE TABLE t1(a,b); |
| 51 CREATE INDEX i1 ON t1(b ASC); |
| 52 } |
| 53 get_file_format |
| 54 } {4} |
| 55 do_test descidx2-1.2 { |
| 56 execsql { |
| 57 CREATE INDEX i2 ON t1(a DESC); |
| 58 } |
| 59 get_file_format |
| 60 } {4} |
| 61 |
| 62 # Before adding any information to the database, set the file format |
| 63 # back to three. Then close and reopen the database. With the file |
| 64 # format set to three, SQLite should ignore the DESC argument on the |
| 65 # index. |
| 66 # |
| 67 do_test descidx2-2.0 { |
| 68 set_file_format 3 |
| 69 db close |
| 70 sqlite3 db test.db |
| 71 get_file_format |
| 72 } {3} |
| 73 |
| 74 # Put some information in the table and verify that the DESC |
| 75 # on the index is ignored. |
| 76 # |
| 77 do_test descidx2-2.1 { |
| 78 execsql { |
| 79 INSERT INTO t1 VALUES(1,1); |
| 80 INSERT INTO t1 VALUES(2,2); |
| 81 INSERT INTO t1 SELECT a+2, a+2 FROM t1; |
| 82 INSERT INTO t1 SELECT a+4, a+4 FROM t1; |
| 83 SELECT b FROM t1 WHERE a>3 AND a<7; |
| 84 } |
| 85 } {4 5 6} |
| 86 do_test descidx2-2.2 { |
| 87 execsql { |
| 88 SELECT a FROM t1 WHERE b>3 AND b<7; |
| 89 } |
| 90 } {4 5 6} |
| 91 do_test descidx2-2.3 { |
| 92 execsql { |
| 93 SELECT b FROM t1 WHERE a>=3 AND a<7; |
| 94 } |
| 95 } {3 4 5 6} |
| 96 do_test descidx2-2.4 { |
| 97 execsql { |
| 98 SELECT b FROM t1 WHERE a>3 AND a<=7; |
| 99 } |
| 100 } {4 5 6 7} |
| 101 do_test descidx2-2.5 { |
| 102 execsql { |
| 103 SELECT b FROM t1 WHERE a>=3 AND a<=7; |
| 104 } |
| 105 } {3 4 5 6 7} |
| 106 do_test descidx2-2.6 { |
| 107 execsql { |
| 108 SELECT a FROM t1 WHERE b>=3 AND b<=7; |
| 109 } |
| 110 } {3 4 5 6 7} |
| 111 |
| 112 # This procedure executes the SQL. Then it checks to see if the OP_Sort |
| 113 # opcode was executed. If an OP_Sort did occur, then "sort" is appended |
| 114 # to the result. If no OP_Sort happened, then "nosort" is appended. |
| 115 # |
| 116 # This procedure is used to check to make sure sorting is or is not |
| 117 # occurring as expected. |
| 118 # |
| 119 proc cksort {sql} { |
| 120 set ::sqlite_sort_count 0 |
| 121 set data [execsql $sql] |
| 122 if {$::sqlite_sort_count} {set x sort} {set x nosort} |
| 123 lappend data $x |
| 124 return $data |
| 125 } |
| 126 |
| 127 # Test sorting using a descending index. |
| 128 # |
| 129 do_test descidx2-3.1 { |
| 130 cksort {SELECT a FROM t1 ORDER BY a} |
| 131 } {1 2 3 4 5 6 7 8 nosort} |
| 132 do_test descidx2-3.2 { |
| 133 cksort {SELECT a FROM t1 ORDER BY a ASC} |
| 134 } {1 2 3 4 5 6 7 8 nosort} |
| 135 do_test descidx2-3.3 { |
| 136 cksort {SELECT a FROM t1 ORDER BY a DESC} |
| 137 } {8 7 6 5 4 3 2 1 nosort} |
| 138 do_test descidx2-3.4 { |
| 139 cksort {SELECT b FROM t1 ORDER BY a} |
| 140 } {1 2 3 4 5 6 7 8 nosort} |
| 141 do_test descidx2-3.5 { |
| 142 cksort {SELECT b FROM t1 ORDER BY a ASC} |
| 143 } {1 2 3 4 5 6 7 8 nosort} |
| 144 do_test descidx2-3.6 { |
| 145 cksort {SELECT b FROM t1 ORDER BY a DESC} |
| 146 } {8 7 6 5 4 3 2 1 nosort} |
| 147 do_test descidx2-3.7 { |
| 148 cksort {SELECT a FROM t1 ORDER BY b} |
| 149 } {1 2 3 4 5 6 7 8 nosort} |
| 150 do_test descidx2-3.8 { |
| 151 cksort {SELECT a FROM t1 ORDER BY b ASC} |
| 152 } {1 2 3 4 5 6 7 8 nosort} |
| 153 do_test descidx2-3.9 { |
| 154 cksort {SELECT a FROM t1 ORDER BY b DESC} |
| 155 } {8 7 6 5 4 3 2 1 nosort} |
| 156 do_test descidx2-3.10 { |
| 157 cksort {SELECT b FROM t1 ORDER BY b} |
| 158 } {1 2 3 4 5 6 7 8 nosort} |
| 159 do_test descidx2-3.11 { |
| 160 cksort {SELECT b FROM t1 ORDER BY b ASC} |
| 161 } {1 2 3 4 5 6 7 8 nosort} |
| 162 do_test descidx2-3.12 { |
| 163 cksort {SELECT b FROM t1 ORDER BY b DESC} |
| 164 } {8 7 6 5 4 3 2 1 nosort} |
| 165 |
| 166 do_test descidx2-3.21 { |
| 167 cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a} |
| 168 } {4 5 6 7 nosort} |
| 169 do_test descidx2-3.22 { |
| 170 cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC} |
| 171 } {4 5 6 7 nosort} |
| 172 do_test descidx2-3.23 { |
| 173 cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC} |
| 174 } {7 6 5 4 nosort} |
| 175 do_test descidx2-3.24 { |
| 176 cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a} |
| 177 } {4 5 6 7 nosort} |
| 178 do_test descidx2-3.25 { |
| 179 cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC} |
| 180 } {4 5 6 7 nosort} |
| 181 do_test descidx2-3.26 { |
| 182 cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC} |
| 183 } {7 6 5 4 nosort} |
| 184 |
| 185 finish_test |
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