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| 1 # 2001 September 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 stressing the library by putting large amounts |
| 13 # of data in a single row of a table. |
| 14 # |
| 15 # $Id: bigrow.test,v 1.5 2004/08/07 23:54:48 drh Exp $ |
| 16 |
| 17 set testdir [file dirname $argv0] |
| 18 source $testdir/tester.tcl |
| 19 |
| 20 # Make a big string that we can use for test data |
| 21 # |
| 22 do_test bigrow-1.0 { |
| 23 set ::bigstr {} |
| 24 for {set i 1} {$i<=9999} {incr i} { |
| 25 set sep [string index "abcdefghijklmnopqrstuvwxyz" [expr {$i%26}]] |
| 26 append ::bigstr "$sep [format %04d $i] " |
| 27 } |
| 28 string length $::bigstr |
| 29 } {69993} |
| 30 |
| 31 # Make a table into which we can insert some but records. |
| 32 # |
| 33 do_test bigrow-1.1 { |
| 34 execsql { |
| 35 CREATE TABLE t1(a text, b text, c text); |
| 36 SELECT name FROM sqlite_master |
| 37 WHERE type='table' OR type='index' |
| 38 ORDER BY name |
| 39 } |
| 40 } {t1} |
| 41 |
| 42 do_test bigrow-1.2 { |
| 43 set ::big1 [string range $::bigstr 0 65519] |
| 44 set sql "INSERT INTO t1 VALUES('abc'," |
| 45 append sql "'$::big1', 'xyz');" |
| 46 execsql $sql |
| 47 execsql {SELECT a, c FROM t1} |
| 48 } {abc xyz} |
| 49 do_test bigrow-1.3 { |
| 50 execsql {SELECT b FROM t1} |
| 51 } [list $::big1] |
| 52 do_test bigrow-1.4 { |
| 53 set ::big2 [string range $::bigstr 0 65520] |
| 54 set sql "INSERT INTO t1 VALUES('abc2'," |
| 55 append sql "'$::big2', 'xyz2');" |
| 56 set r [catch {execsql $sql} msg] |
| 57 lappend r $msg |
| 58 } {0 {}} |
| 59 do_test bigrow-1.4.1 { |
| 60 execsql {SELECT b FROM t1 ORDER BY c} |
| 61 } [list $::big1 $::big2] |
| 62 do_test bigrow-1.4.2 { |
| 63 execsql {SELECT c FROM t1 ORDER BY c} |
| 64 } {xyz xyz2} |
| 65 do_test bigrow-1.4.3 { |
| 66 execsql {DELETE FROM t1 WHERE a='abc2'} |
| 67 execsql {SELECT c FROM t1} |
| 68 } {xyz} |
| 69 |
| 70 do_test bigrow-1.5 { |
| 71 execsql { |
| 72 UPDATE t1 SET a=b, b=a; |
| 73 SELECT b,c FROM t1 |
| 74 } |
| 75 } {abc xyz} |
| 76 do_test bigrow-1.6 { |
| 77 execsql { |
| 78 SELECT * FROM t1 |
| 79 } |
| 80 } [list $::big1 abc xyz] |
| 81 do_test bigrow-1.7 { |
| 82 execsql { |
| 83 INSERT INTO t1 VALUES('1','2','3'); |
| 84 INSERT INTO t1 VALUES('A','B','C'); |
| 85 SELECT b FROM t1 WHERE a=='1'; |
| 86 } |
| 87 } {2} |
| 88 do_test bigrow-1.8 { |
| 89 execsql "SELECT b FROM t1 WHERE a=='$::big1'" |
| 90 } {abc} |
| 91 do_test bigrow-1.9 { |
| 92 execsql "SELECT b FROM t1 WHERE a!='$::big1' ORDER BY a" |
| 93 } {2 B} |
| 94 |
| 95 # Try doing some indexing on big columns |
| 96 # |
| 97 do_test bigrow-2.1 { |
| 98 execsql { |
| 99 CREATE INDEX i1 ON t1(a) |
| 100 } |
| 101 execsql "SELECT b FROM t1 WHERE a=='$::big1'" |
| 102 } {abc} |
| 103 do_test bigrow-2.2 { |
| 104 execsql { |
| 105 UPDATE t1 SET a=b, b=a |
| 106 } |
| 107 execsql "SELECT b FROM t1 WHERE a=='abc'" |
| 108 } [list $::big1] |
| 109 do_test bigrow-2.3 { |
| 110 execsql { |
| 111 UPDATE t1 SET a=b, b=a |
| 112 } |
| 113 execsql "SELECT b FROM t1 WHERE a=='$::big1'" |
| 114 } {abc} |
| 115 catch {unset ::bigstr} |
| 116 catch {unset ::big1} |
| 117 catch {unset ::big2} |
| 118 |
| 119 # Mosts of the tests above were created back when rows were limited in |
| 120 # size to 64K. Now rows can be much bigger. Test that logic. Also |
| 121 # make sure things work correctly at the transition boundries between |
| 122 # row sizes of 256 to 257 bytes and from 65536 to 65537 bytes. |
| 123 # |
| 124 # We begin by testing the 256..257 transition. |
| 125 # |
| 126 do_test bigrow-3.1 { |
| 127 execsql { |
| 128 DELETE FROM t1; |
| 129 INSERT INTO t1(a,b,c) VALUES('one','abcdefghijklmnopqrstuvwxyz0123','hi'); |
| 130 } |
| 131 execsql {SELECT a,length(b),c FROM t1} |
| 132 } {one 30 hi} |
| 133 do_test bigrow-3.2 { |
| 134 execsql { |
| 135 UPDATE t1 SET b=b||b; |
| 136 UPDATE t1 SET b=b||b; |
| 137 UPDATE t1 SET b=b||b; |
| 138 } |
| 139 execsql {SELECT a,length(b),c FROM t1} |
| 140 } {one 240 hi} |
| 141 for {set i 1} {$i<10} {incr i} { |
| 142 do_test bigrow-3.3.$i { |
| 143 execsql "UPDATE t1 SET b=b||'$i'" |
| 144 execsql {SELECT a,length(b),c FROM t1} |
| 145 } "one [expr {240+$i}] hi" |
| 146 } |
| 147 |
| 148 # Now test the 65536..65537 row-size transition. |
| 149 # |
| 150 do_test bigrow-4.1 { |
| 151 execsql { |
| 152 DELETE FROM t1; |
| 153 INSERT INTO t1(a,b,c) VALUES('one','abcdefghijklmnopqrstuvwxyz0123','hi'); |
| 154 } |
| 155 execsql {SELECT a,length(b),c FROM t1} |
| 156 } {one 30 hi} |
| 157 do_test bigrow-4.2 { |
| 158 execsql { |
| 159 UPDATE t1 SET b=b||b; |
| 160 UPDATE t1 SET b=b||b; |
| 161 UPDATE t1 SET b=b||b; |
| 162 UPDATE t1 SET b=b||b; |
| 163 UPDATE t1 SET b=b||b; |
| 164 UPDATE t1 SET b=b||b; |
| 165 UPDATE t1 SET b=b||b; |
| 166 UPDATE t1 SET b=b||b; |
| 167 UPDATE t1 SET b=b||b; |
| 168 UPDATE t1 SET b=b||b; |
| 169 UPDATE t1 SET b=b||b; |
| 170 UPDATE t1 SET b=b||b; |
| 171 } |
| 172 execsql {SELECT a,length(b),c FROM t1} |
| 173 } {one 122880 hi} |
| 174 do_test bigrow-4.3 { |
| 175 execsql { |
| 176 UPDATE t1 SET b=substr(b,1,65515) |
| 177 } |
| 178 execsql {SELECT a,length(b),c FROM t1} |
| 179 } {one 65515 hi} |
| 180 for {set i 1} {$i<10} {incr i} { |
| 181 do_test bigrow-4.4.$i { |
| 182 execsql "UPDATE t1 SET b=b||'$i'" |
| 183 execsql {SELECT a,length(b),c FROM t1} |
| 184 } "one [expr {65515+$i}] hi" |
| 185 } |
| 186 |
| 187 # Check to make sure the library recovers safely if a row contains |
| 188 # too much data. |
| 189 # |
| 190 do_test bigrow-5.1 { |
| 191 execsql { |
| 192 DELETE FROM t1; |
| 193 INSERT INTO t1(a,b,c) VALUES('one','abcdefghijklmnopqrstuvwxyz0123','hi'); |
| 194 } |
| 195 execsql {SELECT a,length(b),c FROM t1} |
| 196 } {one 30 hi} |
| 197 set i 1 |
| 198 for {set sz 60} {$sz<1048560} {incr sz $sz} { |
| 199 do_test bigrow-5.2.$i { |
| 200 execsql { |
| 201 UPDATE t1 SET b=b||b; |
| 202 SELECT a,length(b),c FROM t1; |
| 203 } |
| 204 } "one $sz hi" |
| 205 incr i |
| 206 } |
| 207 do_test bigrow-5.3 { |
| 208 catchsql {UPDATE t1 SET b=b||b} |
| 209 } {0 {}} |
| 210 do_test bigrow-5.4 { |
| 211 execsql {SELECT length(b) FROM t1} |
| 212 } 1966080 |
| 213 do_test bigrow-5.5 { |
| 214 catchsql {UPDATE t1 SET b=b||b} |
| 215 } {0 {}} |
| 216 do_test bigrow-5.6 { |
| 217 execsql {SELECT length(b) FROM t1} |
| 218 } 3932160 |
| 219 do_test bigrow-5.99 { |
| 220 execsql {DROP TABLE t1} |
| 221 } {} |
| 222 |
| 223 finish_test |
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