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Overview
Comment: | fix the UPDATE bug (CVS 185) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
99aae9aaa9f53d1be6600f8598f66594 |
User & Date: | drh 2001-02-19 18:24:22.000 |
Context
2001-02-19
| ||
18:30 | Version 1.0.21 (CVS 482) (check-in: 7a1147ff52 user: drh tags: trunk) | |
18:24 | fix the UPDATE bug (CVS 185) (check-in: 99aae9aaa9 user: drh tags: trunk) | |
2001-02-11
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17:00 | Version 1.0.20 (CVS 484) (check-in: eb0a523c49 user: drh tags: trunk) | |
Changes
Changes to VERSION.
|
| | | 1 | 1.0.21 |
Changes to src/where.c.
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21 22 23 24 25 26 27 | ** http://www.hwaci.com/drh/ ** ************************************************************************* ** This module contains C code that generates VDBE code used to process ** the WHERE clause of SQL statements. Also found here are subroutines ** to generate VDBE code to evaluate expressions. ** | | | 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | ** http://www.hwaci.com/drh/ ** ************************************************************************* ** This module contains C code that generates VDBE code used to process ** the WHERE clause of SQL statements. Also found here are subroutines ** to generate VDBE code to evaluate expressions. ** ** $Id: where.c,v 1.11 2001/02/19 18:24:22 drh Exp $ */ #include "sqliteInt.h" /* ** The query generator uses an array of instances of this structure to ** help it analyze the subexpressions of the WHERE clause. Each WHERE ** clause subexpression is separated from the others by an AND operator. |
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334 335 336 337 338 339 340 | ** computed using the current set of tables. */ for(j=0; j<nExpr; j++){ if( aExpr[j].p==0 ) continue; if( (aExpr[j].prereqRight & loopMask)!=aExpr[j].prereqRight ) continue; if( (aExpr[j].prereqLeft & loopMask)!=aExpr[j].prereqLeft ) continue; if( haveKey ){ | > | > | > > | 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 | ** computed using the current set of tables. */ for(j=0; j<nExpr; j++){ if( aExpr[j].p==0 ) continue; if( (aExpr[j].prereqRight & loopMask)!=aExpr[j].prereqRight ) continue; if( (aExpr[j].prereqLeft & loopMask)!=aExpr[j].prereqLeft ) continue; if( haveKey ){ if( pushKey && i==pTabList->nId-1 ){ sqliteVdbeAddOp(v, OP_Dup, 0, 0, 0, 0); }else{ haveKey = 0; } sqliteVdbeAddOp(v, OP_Fetch, base+idx, 0, 0, 0); } sqliteExprIfFalse(pParse, aExpr[j].p, cont); aExpr[j].p = 0; } brk = cont; } pWInfo->iContinue = cont; |
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Changes to test/update.test.
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19 20 21 22 23 24 25 | # drh@hwaci.com # http://www.hwaci.com/drh/ # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing the UPDATE statement. # | | | 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | # drh@hwaci.com # http://www.hwaci.com/drh/ # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing the UPDATE statement. # # $Id: update.test,v 1.5 2001/02/19 18:24:22 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Try to update an non-existent table # do_test update-1.1 { |
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86 87 88 89 90 91 92 | # Swap the values of f1 and f2 for all elements # do_test update-3.8 { execsql {UPDATE test1 SET F2=f1, F1=f2} execsql {SELECT * FROM test1 ORDER BY F1} } {2 1 4 2 8 3 16 4 32 5 64 6 128 7 256 8 512 9 1024 10} | < < < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | > > > | | > > > > > > > > > | | > > > > > > > > | > > > | | > > > | | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | > > > | > > > > > > > > > | > > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | | | | 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 | # Swap the values of f1 and f2 for all elements # do_test update-3.8 { execsql {UPDATE test1 SET F2=f1, F1=f2} execsql {SELECT * FROM test1 ORDER BY F1} } {2 1 4 2 8 3 16 4 32 5 64 6 128 7 256 8 512 9 1024 10} do_test update-3.9 { execsql {UPDATE test1 SET F2=f1, F1=f2} execsql {SELECT * FROM test1 ORDER BY F1} } {1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024} # Create duplicate entries and make sure updating still # works. # do_test update-4.0 { execsql { DELETE FROM test1 WHERE f1<=5; INSERT INTO test1(f1,f2) VALUES(8,88); INSERT INTO test1(f1,f2) VALUES(8,888); INSERT INTO test1(f1,f2) VALUES(77,128); INSERT INTO test1(f1,f2) VALUES(777,128); } execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-4.1 { execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128} do_test update-4.2 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128} do_test update-4.3 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-4.4 { execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128} do_test update-4.5 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128} do_test update-4.6 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} # Repeat the previous sequence of tests with an index. # do_test update-5.0 { execsql {CREATE INDEX idx1 ON test1(f1)} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-5.1 { execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128} do_test update-5.2 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128} do_test update-5.3 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-5.4 { execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128} do_test update-5.4.1 { execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2} } {78 128} do_test update-5.4.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {778 128} do_test update-5.4.3 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 128 8 256 8 888} do_test update-5.5 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128} do_test update-5.5.1 { execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2} } {78 128} do_test update-5.5.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {} do_test update-5.5.3 { execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2} } {777 128} do_test update-5.5.4 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 128 8 256 8 888} do_test update-5.6 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-5.6.1 { execsql {SELECT * FROM test1 WHERE f1==77 ORDER BY f1,f2} } {77 128} do_test update-5.6.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {} do_test update-5.6.3 { execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2} } {777 128} do_test update-5.6.4 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 256 8 888} # Repeat the previous sequence of tests with a different index. # do_test update-6.0 { execsql {DROP INDEX idx1} execsql {CREATE INDEX idx1 ON test1(f2)} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-6.1 { execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128} do_test update-6.1.1 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 89 8 257 8 889} do_test update-6.1.2 { execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2} } {8 89} do_test update-6.1.3 { execsql {SELECT * FROM test1 WHERE f1==88 ORDER BY f1,f2} } {} do_test update-6.2 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128} do_test update-6.3 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-6.3.1 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 256 8 888} do_test update-6.3.2 { execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2} } {} do_test update-6.3.3 { execsql {SELECT * FROM test1 WHERE f2==88 ORDER BY f1,f2} } {8 88} do_test update-6.4 { execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128} do_test update-6.4.1 { execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2} } {78 128} do_test update-6.4.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {778 128} do_test update-6.4.3 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 128 8 256 8 888} do_test update-6.5 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128} do_test update-6.5.1 { execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2} } {78 128} do_test update-6.5.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {} do_test update-6.5.3 { execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2} } {777 128} do_test update-6.5.4 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 128 8 256 8 888} do_test update-6.6 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-6.6.1 { execsql {SELECT * FROM test1 WHERE f1==77 ORDER BY f1,f2} } {77 128} do_test update-6.6.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {} do_test update-6.6.3 { execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2} } {777 128} do_test update-6.6.4 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 256 8 888} # Repeat the previous sequence of tests with multiple # indices # do_test update-7.0 { execsql {CREATE INDEX idx2 ON test1(f2)} execsql {CREATE INDEX idx3 ON test1(f1,f2)} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-7.1 { execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128} do_test update-7.1.1 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 89 8 257 8 889} do_test update-7.1.2 { execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2} } {8 89} do_test update-7.1.3 { execsql {SELECT * FROM test1 WHERE f1==88 ORDER BY f1,f2} } {} do_test update-7.2 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128} do_test update-7.3 { execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-7.3.1 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 256 8 888} do_test update-7.3.2 { execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2} } {} do_test update-7.3.3 { execsql {SELECT * FROM test1 WHERE f2==88 ORDER BY f1,f2} } {8 88} do_test update-7.4 { execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128} do_test update-7.4.1 { execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2} } {78 128} do_test update-7.4.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {778 128} do_test update-7.4.3 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 128 8 256 8 888} do_test update-7.5 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128} do_test update-7.5.1 { execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2} } {78 128} do_test update-7.5.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {} do_test update-7.5.3 { execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2} } {777 128} do_test update-7.5.4 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 128 8 256 8 888} do_test update-7.6 { execsql {UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128} execsql {SELECT * FROM test1 ORDER BY f1,f2} } {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128} do_test update-7.6.1 { execsql {SELECT * FROM test1 WHERE f1==77 ORDER BY f1,f2} } {77 128} do_test update-7.6.2 { execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2} } {} do_test update-7.6.3 { execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2} } {777 128} do_test update-7.6.4 { execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2} } {8 88 8 256 8 888} # Error messages # do_test update-9.1 { set v [catch {execsql { UPDATE test1 SET x=11 WHERE f1=1025 }} msg] lappend v $msg } {1 {no such column: x}} do_test update-9.2 { set v [catch {execsql { UPDATE test1 SET f1=x(11) WHERE f1=1025 }} msg] lappend v $msg } {1 {no such function: x}} do_test update-9.3 { set v [catch {execsql { UPDATE test1 SET f1=11 WHERE x=1025 }} msg] lappend v $msg } {1 {no such column: x}} do_test update-9.4 { set v [catch {execsql { UPDATE test1 SET f1=11 WHERE x(f1)=1025 }} msg] lappend v $msg } {1 {no such function: x}} finish_test |
Changes to www/changes.tcl.
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12 13 14 15 16 17 18 19 20 21 22 23 24 25 | } proc chng {date desc} { puts "<DT><B>$date</B></DT>" puts "<DD><P><UL>$desc</UL></P></DD>" } chng {2001 Feb 11 (1.0.20)} { <li>Merge development changes into the main trunk. Future work toward using a BTree file structure will use a separate CVS source tree. This CVS tree will continue to support the GDBM version of SQLite only.</li> } | > > > > > > | 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | } proc chng {date desc} { puts "<DT><B>$date</B></DT>" puts "<DD><P><UL>$desc</UL></P></DD>" } chng {2001 Feb 19 (1.0.21)} { <li>The UPDATE statement was not working when the WHERE clause contained some terms that could be satisfied using indices and other terms that could not. Fixed.</li> } chng {2001 Feb 11 (1.0.20)} { <li>Merge development changes into the main trunk. Future work toward using a BTree file structure will use a separate CVS source tree. This CVS tree will continue to support the GDBM version of SQLite only.</li> } |
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Changes to www/index.tcl.
1 2 3 | # # Run this TCL script to generate HTML for the index.html file. # | | | 1 2 3 4 5 6 7 8 9 10 11 | # # Run this TCL script to generate HTML for the index.html file. # set rcsid {$Id: index.tcl,v 1.30 2001/02/19 18:24:22 drh Exp $} puts {<html> <head><title>SQLite: An SQL Database Library Built Atop GDBM</title></head> <body bgcolor=white> <h1 align=center>SQLite: An SQL Database Library Built Atop <a href="http://www.gnu.org/software/gdbm/gdbm.html">GDBM</a></h1> <p align=center>} |
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57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | There are currently no <em>known</em> bugs or memory leaks in the library. <a href="http://gcc.gnu.org/onlinedocs/gcov_1.html">Gcov</a> is used to verify test coverage. The test suite currently exercises all code except for a few areas which are unreachable or which are only reached when <tt>malloc()</tt> fails. The code has been tested for memory leaks and is found to be clean.</p> <p> Among the SQL features that SQLite does not currently implement are:</p> <p> <ul> <li>outer joins</li> <li>constraints are parsed but are not enforced</li> <li>no support for transactions or rollback</li> </ul> </p> <h2>Important News Flash!</h2> <p> The SQLite file format was changed in an incompatible way on | > > > > > > > | | 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | There are currently no <em>known</em> bugs or memory leaks in the library. <a href="http://gcc.gnu.org/onlinedocs/gcov_1.html">Gcov</a> is used to verify test coverage. The test suite currently exercises all code except for a few areas which are unreachable or which are only reached when <tt>malloc()</tt> fails. The code has been tested for memory leaks and is found to be clean.</p> <p><b>Important Note:</b> A bug was found in the processing of UPDATE statements when the WHERE clause contained some terms that could be satisfied using indices and other terms which could not. The problem was fixed in version 1.0.21. Users of prior versions of SQLite should consider upgrading.</p> <p> Among the SQL features that SQLite does not currently implement are:</p> <p> <ul> <li>outer joins</li> <li>constraints are parsed but are not enforced</li> <li>no support for transactions or rollback</li> </ul> </p> <h2>Important News Flash!</h2> <p> The SQLite file format was changed in an incompatible way on Aug 2, 2000 (prior to version 1.0, when SQLite was still in Beta). If you are updated the library and have databases built using the old version of the library, you should save your old databases into an ASCII file then reimport the database using the new library. For example, if you change the name of the old <b>sqlite</b> utility to "old-sqlite" and change the name of the old database directory to "old-db", then you can reconstruct the database as follows:</p> |
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