gitlab.com/CoiaPrant/sqlite3@v1.19.1/testdata/tcl/whereA.test (about) 1 # 2009 February 23 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 file is testing the reverse_select_order pragma. 13 # 14 # $Id: whereA.test,v 1.3 2009/06/10 19:33:29 drh Exp $ 15 16 set testdir [file dirname $argv0] 17 source $testdir/tester.tcl 18 19 do_test whereA-1.1 { 20 db eval { 21 CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c); 22 INSERT INTO t1 VALUES(1,2,3); 23 INSERT INTO t1 values(2,'hello','world'); 24 INSERT INTO t1 VALUES(3,4.53,NULL); 25 SELECT * FROM t1 26 } 27 } {1 2 3 2 hello world 3 4.53 {}} 28 do_test whereA-1.2 { 29 db eval { 30 PRAGMA reverse_unordered_selects=1; 31 SELECT * FROM t1; 32 } 33 } {3 4.53 {} 2 hello world 1 2 3} 34 35 do_test whereA-1.3 { 36 db close 37 sqlite3 db test.db 38 db eval { 39 PRAGMA reverse_unordered_selects=1; 40 SELECT * FROM t1; 41 } 42 } {3 4.53 {} 2 hello world 1 2 3} 43 do_test whereA-1.4 { 44 db close 45 sqlite3 db test.db 46 db eval { 47 PRAGMA reverse_unordered_selects=1; 48 SELECT * FROM t1 ORDER BY rowid; 49 } 50 } {1 2 3 2 hello world 3 4.53 {}} 51 do_test whereA-1.5 { 52 db eval { 53 VACUUM; 54 SELECT * FROM t1 ORDER BY rowid; 55 } 56 } {1 2 3 2 hello world 3 4.53 {}} 57 do_test whereA-1.6 { 58 db eval { 59 PRAGMA reverse_unordered_selects; 60 } 61 } {1} 62 do_test whereA-1.7 { 63 db close 64 sqlite3 db test.db 65 db eval { 66 PRAGMA reverse_unordered_selects=1; 67 VACUUM; 68 SELECT * FROM t1; 69 } 70 } {3 4.53 {} 2 hello world 1 2 3} 71 do_execsql_test whereA-1.8 { 72 SELECT * FROM t1 WHERE b=2 AND a IS NULL; 73 } {} 74 do_execsql_test whereA-1.9 { 75 SELECT * FROM t1 WHERE b=2 AND a IS NOT NULL; 76 } {1 2 3} 77 78 do_test whereA-2.1 { 79 db eval { 80 PRAGMA reverse_unordered_selects=0; 81 SELECT * FROM t1 WHERE a>0; 82 } 83 } {1 2 3 2 hello world 3 4.53 {}} 84 do_test whereA-2.2 { 85 db eval { 86 PRAGMA reverse_unordered_selects=1; 87 SELECT * FROM t1 WHERE a>0; 88 } 89 } {3 4.53 {} 2 hello world 1 2 3} 90 91 do_test whereA-2.3 { 92 db eval { 93 PRAGMA reverse_unordered_selects=1; 94 SELECT * FROM t1 WHERE a>0 ORDER BY rowid; 95 } 96 } {1 2 3 2 hello world 3 4.53 {}} 97 98 do_test whereA-3.1 { 99 db eval { 100 PRAGMA reverse_unordered_selects=0; 101 SELECT * FROM t1 WHERE b>0; 102 } 103 } {1 2 3 3 4.53 {} 2 hello world} 104 do_test whereA-3.2 { 105 db eval { 106 PRAGMA reverse_unordered_selects=1; 107 SELECT * FROM t1 WHERE b>0; 108 } 109 } {2 hello world 3 4.53 {} 1 2 3} 110 do_test whereA-3.3 { 111 db eval { 112 PRAGMA reverse_unordered_selects=1; 113 SELECT * FROM t1 WHERE b>0 ORDER BY b; 114 } 115 } {1 2 3 3 4.53 {} 2 hello world} 116 117 do_test whereA-4.1 { 118 db eval { 119 CREATE TABLE t2(x); 120 INSERT INTO t2 VALUES(1); 121 INSERT INTO t2 VALUES(2); 122 SELECT x FROM t2; 123 } 124 } {2 1} 125 # Do an SQL statement. Append the search count to the end of the result. 126 # 127 proc count sql { 128 set ::sqlite_sort_count 0 129 return [concat [execsql $sql] $::sqlite_sort_count] 130 } 131 do_test whereA-4.2 { ;# Ticket #3904 132 db eval { 133 CREATE INDEX t2x ON t2(x); 134 } 135 count { 136 SELECT x FROM t2; 137 } 138 } {2 1 0} 139 do_test whereA-4.3 { 140 count { 141 SELECT x FROM t2 ORDER BY x; 142 } 143 } {1 2 0} 144 do_test whereA-4.4 { 145 count { 146 SELECT x FROM t2 ORDER BY x DESC; 147 } 148 } {2 1 0} 149 do_test whereA-4.5 { 150 db eval {DROP INDEX t2x;} 151 count { 152 SELECT x FROM t2 ORDER BY x; 153 } 154 } {1 2 1} 155 do_test whereA-4.6 { 156 count { 157 SELECT x FROM t2 ORDER BY x DESC; 158 } 159 } {2 1 1} 160 161 # Ticket https://sqlite.org/src/tktview/cb91bf4290c211 2017-08-01 162 # Assertion fault following PRAGMA reverse_unordered_selects=ON. 163 # 164 do_execsql_test whereA-5.1 { 165 PRAGMA reverse_unordered_selects=on; 166 DROP TABLE IF EXISTS t1; 167 CREATE TABLE t1(a,b); 168 INSERT INTO t1 VALUES(1,2); 169 CREATE INDEX t1b ON t1(b); 170 SELECT a FROM t1 WHERE b=-99 OR b>1; 171 } {1} 172 173 # 2020-10-02 OSSFuzz find for an issue introduced by a check-in 174 # on the previous day. 175 # 176 reset_db 177 do_execsql_test whereA-6.1 { 178 CREATE TABLE t1(a, b); 179 CREATE INDEX t1aa ON t1(a,a); 180 INSERT INTO t1 VALUES(1,2); 181 ANALYZE; 182 UPDATE sqlite_stat1 SET stat='27 3 3' WHERE idx='t1aa'; 183 ANALYZE sqlite_schema; 184 PRAGMA reverse_unordered_selects (1) ; 185 SELECT a FROM t1 WHERE a=1 OR a=2; 186 } {1} 187 188 189 finish_test