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| 1 # 2001 September 15 | |
| 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 SELECT statement. | |
| 13 # | |
| 14 # $Id: select2.test,v 1.28 2009/01/15 15:23:59 drh Exp $ | |
| 15 | |
| 16 set testdir [file dirname $argv0] | |
| 17 source $testdir/tester.tcl | |
| 18 | |
| 19 # Create a table with some data | |
| 20 # | |
| 21 execsql {CREATE TABLE tbl1(f1 int, f2 int)} | |
| 22 execsql {BEGIN} | |
| 23 for {set i 0} {$i<=30} {incr i} { | |
| 24 execsql "INSERT INTO tbl1 VALUES([expr {$i%9}],[expr {$i%10}])" | |
| 25 } | |
| 26 execsql {COMMIT} | |
| 27 | |
| 28 # Do a second query inside a first. | |
| 29 # | |
| 30 do_test select2-1.1 { | |
| 31 set sql {SELECT DISTINCT f1 FROM tbl1 ORDER BY f1} | |
| 32 set r {} | |
| 33 catch {unset data} | |
| 34 db eval $sql data { | |
| 35 set f1 $data(f1) | |
| 36 lappend r $f1: | |
| 37 set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2" | |
| 38 db eval $sql2 d2 { | |
| 39 lappend r $d2(f2) | |
| 40 } | |
| 41 } | |
| 42 set r | |
| 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} | |
| 44 | |
| 45 do_test select2-1.2 { | |
| 46 set sql {SELECT DISTINCT f1 FROM tbl1 WHERE f1>3 AND f1<5} | |
| 47 set r {} | |
| 48 db eval $sql data { | |
| 49 set f1 $data(f1) | |
| 50 lappend r $f1: | |
| 51 set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2" | |
| 52 db eval $sql2 d2 { | |
| 53 lappend r $d2(f2) | |
| 54 } | |
| 55 } | |
| 56 set r | |
| 57 } {4: 2 3 4} | |
| 58 unset data | |
| 59 | |
| 60 # Create a largish table. Do this twice, once using the TCL cache and once | |
| 61 # without. Compare the performance to make sure things go faster with the | |
| 62 # cache turned on. | |
| 63 # | |
| 64 ifcapable tclvar { | |
| 65 do_test select2-2.0.1 { | |
| 66 set t1 [time { | |
| 67 execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;} | |
| 68 for {set i 1} {$i<=30000} {incr i} { | |
| 69 set i2 [expr {$i*2}] | |
| 70 set i3 [expr {$i*3}] | |
| 71 db eval {INSERT INTO tbl2 VALUES($i,$i2,$i3)} | |
| 72 } | |
| 73 execsql {COMMIT} | |
| 74 }] | |
| 75 list | |
| 76 } {} | |
| 77 puts "time with cache: $::t1" | |
| 78 } | |
| 79 catch {execsql {DROP TABLE tbl2}} | |
| 80 do_test select2-2.0.2 { | |
| 81 set t2 [time { | |
| 82 execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;} | |
| 83 for {set i 1} {$i<=30000} {incr i} { | |
| 84 set i2 [expr {$i*2}] | |
| 85 set i3 [expr {$i*3}] | |
| 86 execsql "INSERT INTO tbl2 VALUES($i,$i2,$i3)" | |
| 87 } | |
| 88 execsql {COMMIT} | |
| 89 }] | |
| 90 list | |
| 91 } {} | |
| 92 puts "time without cache: $t2" | |
| 93 #ifcapable tclvar { | |
| 94 # do_test select2-2.0.3 { | |
| 95 # expr {[lindex $t1 0]<[lindex $t2 0]} | |
| 96 # } 1 | |
| 97 #} | |
| 98 | |
| 99 do_test select2-2.1 { | |
| 100 execsql {SELECT count(*) FROM tbl2} | |
| 101 } {30000} | |
| 102 do_test select2-2.2 { | |
| 103 execsql {SELECT count(*) FROM tbl2 WHERE f2>1000} | |
| 104 } {29500} | |
| 105 | |
| 106 do_test select2-3.1 { | |
| 107 execsql {SELECT f1 FROM tbl2 WHERE 1000=f2} | |
| 108 } {500} | |
| 109 | |
| 110 do_test select2-3.2a { | |
| 111 execsql {CREATE INDEX idx1 ON tbl2(f2)} | |
| 112 } {} | |
| 113 do_test select2-3.2b { | |
| 114 execsql {SELECT f1 FROM tbl2 WHERE 1000=f2} | |
| 115 } {500} | |
| 116 do_test select2-3.2c { | |
| 117 execsql {SELECT f1 FROM tbl2 WHERE f2=1000} | |
| 118 } {500} | |
| 119 do_test select2-3.2d { | |
| 120 set sqlite_search_count 0 | |
| 121 execsql {SELECT * FROM tbl2 WHERE 1000=f2} | |
| 122 set sqlite_search_count | |
| 123 } {3} | |
| 124 do_test select2-3.2e { | |
| 125 set sqlite_search_count 0 | |
| 126 execsql {SELECT * FROM tbl2 WHERE f2=1000} | |
| 127 set sqlite_search_count | |
| 128 } {3} | |
| 129 | |
| 130 # Make sure queries run faster with an index than without | |
| 131 # | |
| 132 do_test select2-3.3 { | |
| 133 execsql {DROP INDEX idx1} | |
| 134 set sqlite_search_count 0 | |
| 135 execsql {SELECT f1 FROM tbl2 WHERE f2==2000} | |
| 136 set sqlite_search_count | |
| 137 } {29999} | |
| 138 | |
| 139 # Make sure we can optimize functions in the WHERE clause that | |
| 140 # use fields from two or more different table. (Bug #6) | |
| 141 # | |
| 142 do_test select2-4.1 { | |
| 143 execsql { | |
| 144 CREATE TABLE aa(a); | |
| 145 CREATE TABLE bb(b); | |
| 146 INSERT INTO aa VALUES(1); | |
| 147 INSERT INTO aa VALUES(3); | |
| 148 INSERT INTO bb VALUES(2); | |
| 149 INSERT INTO bb VALUES(4); | |
| 150 SELECT * FROM aa, bb WHERE max(a,b)>2; | |
| 151 } | |
| 152 } {1 4 3 2 3 4} | |
| 153 do_test select2-4.2 { | |
| 154 execsql { | |
| 155 INSERT INTO bb VALUES(0); | |
| 156 SELECT * FROM aa, bb WHERE b; | |
| 157 } | |
| 158 } {1 2 1 4 3 2 3 4} | |
| 159 do_test select2-4.3 { | |
| 160 execsql { | |
| 161 SELECT * FROM aa, bb WHERE NOT b; | |
| 162 } | |
| 163 } {1 0 3 0} | |
| 164 do_test select2-4.4 { | |
| 165 execsql { | |
| 166 SELECT * FROM aa, bb WHERE min(a,b); | |
| 167 } | |
| 168 } {1 2 1 4 3 2 3 4} | |
| 169 do_test select2-4.5 { | |
| 170 execsql { | |
| 171 SELECT * FROM aa, bb WHERE NOT min(a,b); | |
| 172 } | |
| 173 } {1 0 3 0} | |
| 174 do_test select2-4.6 { | |
| 175 execsql { | |
| 176 SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 1 END; | |
| 177 } | |
| 178 } {1 2 3 4} | |
| 179 do_test select2-4.7 { | |
| 180 execsql { | |
| 181 SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 0 ELSE 1 END; | |
| 182 } | |
| 183 } {1 4 1 0 3 2 3 0} | |
| 184 | |
| 185 finish_test | |
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