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| 1 # 2005 August 13 |
| 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 LIKE and GLOB operators and |
| 13 # in particular the optimizations that occur to help those operators |
| 14 # run faster. |
| 15 # |
| 16 # $Id: like.test,v 1.13 2009/06/07 23:45:11 drh Exp $ |
| 17 |
| 18 set testdir [file dirname $argv0] |
| 19 source $testdir/tester.tcl |
| 20 |
| 21 # Create some sample data to work with. |
| 22 # |
| 23 do_test like-1.0 { |
| 24 execsql { |
| 25 CREATE TABLE t1(x TEXT); |
| 26 } |
| 27 foreach str { |
| 28 a |
| 29 ab |
| 30 abc |
| 31 abcd |
| 32 |
| 33 acd |
| 34 abd |
| 35 bc |
| 36 bcd |
| 37 |
| 38 xyz |
| 39 ABC |
| 40 CDE |
| 41 {ABC abc xyz} |
| 42 } { |
| 43 db eval {INSERT INTO t1 VALUES(:str)} |
| 44 } |
| 45 execsql { |
| 46 SELECT count(*) FROM t1; |
| 47 } |
| 48 } {12} |
| 49 |
| 50 # Test that both case sensitive and insensitive version of LIKE work. |
| 51 # |
| 52 do_test like-1.1 { |
| 53 execsql { |
| 54 SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1; |
| 55 } |
| 56 } {ABC abc} |
| 57 do_test like-1.2 { |
| 58 execsql { |
| 59 SELECT x FROM t1 WHERE x GLOB 'abc' ORDER BY 1; |
| 60 } |
| 61 } {abc} |
| 62 do_test like-1.3 { |
| 63 execsql { |
| 64 SELECT x FROM t1 WHERE x LIKE 'ABC' ORDER BY 1; |
| 65 } |
| 66 } {ABC abc} |
| 67 do_test like-1.4 { |
| 68 execsql { |
| 69 SELECT x FROM t1 WHERE x LIKE 'aBc' ORDER BY 1; |
| 70 } |
| 71 } {ABC abc} |
| 72 do_test like-1.5.1 { |
| 73 execsql { |
| 74 PRAGMA case_sensitive_like=on; |
| 75 SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1; |
| 76 } |
| 77 } {abc} |
| 78 do_test like-1.5.2 { |
| 79 execsql { |
| 80 PRAGMA case_sensitive_like; -- no argument; does not change setting |
| 81 SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1; |
| 82 } |
| 83 } {abc} |
| 84 do_test like-1.6 { |
| 85 execsql { |
| 86 SELECT x FROM t1 WHERE x GLOB 'abc' ORDER BY 1; |
| 87 } |
| 88 } {abc} |
| 89 do_test like-1.7 { |
| 90 execsql { |
| 91 SELECT x FROM t1 WHERE x LIKE 'ABC' ORDER BY 1; |
| 92 } |
| 93 } {ABC} |
| 94 do_test like-1.8 { |
| 95 execsql { |
| 96 SELECT x FROM t1 WHERE x LIKE 'aBc' ORDER BY 1; |
| 97 } |
| 98 } {} |
| 99 do_test like-1.9 { |
| 100 execsql { |
| 101 PRAGMA case_sensitive_like=off; |
| 102 SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1; |
| 103 } |
| 104 } {ABC abc} |
| 105 do_test like-1.10 { |
| 106 execsql { |
| 107 PRAGMA case_sensitive_like; -- No argument, does not change setting. |
| 108 SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1; |
| 109 } |
| 110 } {ABC abc} |
| 111 |
| 112 # Tests of the REGEXP operator |
| 113 # |
| 114 do_test like-2.1 { |
| 115 proc test_regexp {a b} { |
| 116 return [regexp $a $b] |
| 117 } |
| 118 db function regexp -argcount 2 test_regexp |
| 119 execsql { |
| 120 SELECT x FROM t1 WHERE x REGEXP 'abc' ORDER BY 1; |
| 121 } |
| 122 } {{ABC abc xyz} abc abcd} |
| 123 do_test like-2.2 { |
| 124 execsql { |
| 125 SELECT x FROM t1 WHERE x REGEXP '^abc' ORDER BY 1; |
| 126 } |
| 127 } {abc abcd} |
| 128 |
| 129 # Tests of the MATCH operator |
| 130 # |
| 131 do_test like-2.3 { |
| 132 proc test_match {a b} { |
| 133 return [string match $a $b] |
| 134 } |
| 135 db function match -argcount 2 test_match |
| 136 execsql { |
| 137 SELECT x FROM t1 WHERE x MATCH '*abc*' ORDER BY 1; |
| 138 } |
| 139 } {{ABC abc xyz} abc abcd} |
| 140 do_test like-2.4 { |
| 141 execsql { |
| 142 SELECT x FROM t1 WHERE x MATCH 'abc*' ORDER BY 1; |
| 143 } |
| 144 } {abc abcd} |
| 145 |
| 146 # For the remaining tests, we need to have the like optimizations |
| 147 # enabled. |
| 148 # |
| 149 ifcapable !like_opt { |
| 150 finish_test |
| 151 return |
| 152 } |
| 153 |
| 154 # This procedure executes the SQL. Then it appends to the result the |
| 155 # "sort" or "nosort" keyword (as in the cksort procedure above) then |
| 156 # it appends the ::sqlite_query_plan variable. |
| 157 # |
| 158 proc queryplan {sql} { |
| 159 set ::sqlite_sort_count 0 |
| 160 set data [execsql $sql] |
| 161 if {$::sqlite_sort_count} {set x sort} {set x nosort} |
| 162 lappend data $x |
| 163 return [concat $data $::sqlite_query_plan] |
| 164 } |
| 165 |
| 166 # Perform tests on the like optimization. |
| 167 # |
| 168 # With no index on t1.x and with case sensitivity turned off, no optimization |
| 169 # is performed. |
| 170 # |
| 171 do_test like-3.1 { |
| 172 set sqlite_like_count 0 |
| 173 queryplan { |
| 174 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; |
| 175 } |
| 176 } {ABC {ABC abc xyz} abc abcd sort t1 {}} |
| 177 do_test like-3.2 { |
| 178 set sqlite_like_count |
| 179 } {12} |
| 180 |
| 181 # With an index on t1.x and case sensitivity on, optimize completely. |
| 182 # |
| 183 do_test like-3.3 { |
| 184 set sqlite_like_count 0 |
| 185 execsql { |
| 186 PRAGMA case_sensitive_like=on; |
| 187 CREATE INDEX i1 ON t1(x); |
| 188 } |
| 189 queryplan { |
| 190 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; |
| 191 } |
| 192 } {abc abcd nosort {} i1} |
| 193 do_test like-3.4 { |
| 194 set sqlite_like_count |
| 195 } 0 |
| 196 |
| 197 # The LIKE optimization still works when the RHS is a string with no |
| 198 # wildcard. Ticket [e090183531fc2747] |
| 199 # |
| 200 do_test like-3.4.2 { |
| 201 queryplan { |
| 202 SELECT x FROM t1 WHERE x LIKE 'a' ORDER BY 1; |
| 203 } |
| 204 } {a nosort {} i1} |
| 205 do_test like-3.4.3 { |
| 206 queryplan { |
| 207 SELECT x FROM t1 WHERE x LIKE 'ab' ORDER BY 1; |
| 208 } |
| 209 } {ab nosort {} i1} |
| 210 do_test like-3.4.4 { |
| 211 queryplan { |
| 212 SELECT x FROM t1 WHERE x LIKE 'abcd' ORDER BY 1; |
| 213 } |
| 214 } {abcd nosort {} i1} |
| 215 do_test like-3.4.5 { |
| 216 queryplan { |
| 217 SELECT x FROM t1 WHERE x LIKE 'abcde' ORDER BY 1; |
| 218 } |
| 219 } {nosort {} i1} |
| 220 |
| 221 |
| 222 # Partial optimization when the pattern does not end in '%' |
| 223 # |
| 224 do_test like-3.5 { |
| 225 set sqlite_like_count 0 |
| 226 queryplan { |
| 227 SELECT x FROM t1 WHERE x LIKE 'a_c' ORDER BY 1; |
| 228 } |
| 229 } {abc nosort {} i1} |
| 230 do_test like-3.6 { |
| 231 set sqlite_like_count |
| 232 } 6 |
| 233 do_test like-3.7 { |
| 234 set sqlite_like_count 0 |
| 235 queryplan { |
| 236 SELECT x FROM t1 WHERE x LIKE 'ab%d' ORDER BY 1; |
| 237 } |
| 238 } {abcd abd nosort {} i1} |
| 239 do_test like-3.8 { |
| 240 set sqlite_like_count |
| 241 } 4 |
| 242 do_test like-3.9 { |
| 243 set sqlite_like_count 0 |
| 244 queryplan { |
| 245 SELECT x FROM t1 WHERE x LIKE 'a_c%' ORDER BY 1; |
| 246 } |
| 247 } {abc abcd nosort {} i1} |
| 248 do_test like-3.10 { |
| 249 set sqlite_like_count |
| 250 } 6 |
| 251 |
| 252 # No optimization when the pattern begins with a wildcard. |
| 253 # Note that the index is still used but only for sorting. |
| 254 # |
| 255 do_test like-3.11 { |
| 256 set sqlite_like_count 0 |
| 257 queryplan { |
| 258 SELECT x FROM t1 WHERE x LIKE '%bcd' ORDER BY 1; |
| 259 } |
| 260 } {abcd bcd nosort {} i1} |
| 261 do_test like-3.12 { |
| 262 set sqlite_like_count |
| 263 } 12 |
| 264 |
| 265 # No optimization for case insensitive LIKE |
| 266 # |
| 267 do_test like-3.13 { |
| 268 set sqlite_like_count 0 |
| 269 queryplan { |
| 270 PRAGMA case_sensitive_like=off; |
| 271 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; |
| 272 } |
| 273 } {ABC {ABC abc xyz} abc abcd nosort {} i1} |
| 274 do_test like-3.14 { |
| 275 set sqlite_like_count |
| 276 } 12 |
| 277 |
| 278 # No optimization without an index. |
| 279 # |
| 280 do_test like-3.15 { |
| 281 set sqlite_like_count 0 |
| 282 queryplan { |
| 283 PRAGMA case_sensitive_like=on; |
| 284 DROP INDEX i1; |
| 285 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; |
| 286 } |
| 287 } {abc abcd sort t1 {}} |
| 288 do_test like-3.16 { |
| 289 set sqlite_like_count |
| 290 } 12 |
| 291 |
| 292 # No GLOB optimization without an index. |
| 293 # |
| 294 do_test like-3.17 { |
| 295 set sqlite_like_count 0 |
| 296 queryplan { |
| 297 SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; |
| 298 } |
| 299 } {abc abcd sort t1 {}} |
| 300 do_test like-3.18 { |
| 301 set sqlite_like_count |
| 302 } 12 |
| 303 |
| 304 # GLOB is optimized regardless of the case_sensitive_like setting. |
| 305 # |
| 306 do_test like-3.19 { |
| 307 set sqlite_like_count 0 |
| 308 queryplan { |
| 309 CREATE INDEX i1 ON t1(x); |
| 310 SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; |
| 311 } |
| 312 } {abc abcd nosort {} i1} |
| 313 do_test like-3.20 { |
| 314 set sqlite_like_count |
| 315 } 0 |
| 316 do_test like-3.21 { |
| 317 set sqlite_like_count 0 |
| 318 queryplan { |
| 319 PRAGMA case_sensitive_like=on; |
| 320 SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; |
| 321 } |
| 322 } {abc abcd nosort {} i1} |
| 323 do_test like-3.22 { |
| 324 set sqlite_like_count |
| 325 } 0 |
| 326 do_test like-3.23 { |
| 327 set sqlite_like_count 0 |
| 328 queryplan { |
| 329 PRAGMA case_sensitive_like=off; |
| 330 SELECT x FROM t1 WHERE x GLOB 'a[bc]d' ORDER BY 1; |
| 331 } |
| 332 } {abd acd nosort {} i1} |
| 333 do_test like-3.24 { |
| 334 set sqlite_like_count |
| 335 } 6 |
| 336 |
| 337 # GLOB optimization when there is no wildcard. Ticket [e090183531fc2747] |
| 338 # |
| 339 do_test like-3.25 { |
| 340 queryplan { |
| 341 SELECT x FROM t1 WHERE x GLOB 'a' ORDER BY 1; |
| 342 } |
| 343 } {a nosort {} i1} |
| 344 do_test like-3.26 { |
| 345 queryplan { |
| 346 SELECT x FROM t1 WHERE x GLOB 'abcd' ORDER BY 1; |
| 347 } |
| 348 } {abcd nosort {} i1} |
| 349 do_test like-3.27 { |
| 350 queryplan { |
| 351 SELECT x FROM t1 WHERE x GLOB 'abcde' ORDER BY 1; |
| 352 } |
| 353 } {nosort {} i1} |
| 354 |
| 355 |
| 356 |
| 357 # No optimization if the LHS of the LIKE is not a column name or |
| 358 # if the RHS is not a string. |
| 359 # |
| 360 do_test like-4.1 { |
| 361 execsql {PRAGMA case_sensitive_like=on} |
| 362 set sqlite_like_count 0 |
| 363 queryplan { |
| 364 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1 |
| 365 } |
| 366 } {abc abcd nosort {} i1} |
| 367 do_test like-4.2 { |
| 368 set sqlite_like_count |
| 369 } 0 |
| 370 do_test like-4.3 { |
| 371 set sqlite_like_count 0 |
| 372 queryplan { |
| 373 SELECT x FROM t1 WHERE +x LIKE 'abc%' ORDER BY 1 |
| 374 } |
| 375 } {abc abcd nosort {} i1} |
| 376 do_test like-4.4 { |
| 377 set sqlite_like_count |
| 378 } 12 |
| 379 do_test like-4.5 { |
| 380 set sqlite_like_count 0 |
| 381 queryplan { |
| 382 SELECT x FROM t1 WHERE x LIKE ('ab' || 'c%') ORDER BY 1 |
| 383 } |
| 384 } {abc abcd nosort {} i1} |
| 385 do_test like-4.6 { |
| 386 set sqlite_like_count |
| 387 } 12 |
| 388 |
| 389 # Collating sequences on the index disable the LIKE optimization. |
| 390 # Or if the NOCASE collating sequence is used, the LIKE optimization |
| 391 # is enabled when case_sensitive_like is OFF. |
| 392 # |
| 393 do_test like-5.1 { |
| 394 execsql {PRAGMA case_sensitive_like=off} |
| 395 set sqlite_like_count 0 |
| 396 queryplan { |
| 397 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1 |
| 398 } |
| 399 } {ABC {ABC abc xyz} abc abcd nosort {} i1} |
| 400 do_test like-5.2 { |
| 401 set sqlite_like_count |
| 402 } 12 |
| 403 do_test like-5.3 { |
| 404 execsql { |
| 405 CREATE TABLE t2(x TEXT COLLATE NOCASE); |
| 406 INSERT INTO t2 SELECT * FROM t1; |
| 407 CREATE INDEX i2 ON t2(x COLLATE NOCASE); |
| 408 } |
| 409 set sqlite_like_count 0 |
| 410 queryplan { |
| 411 SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1 |
| 412 } |
| 413 } {abc ABC {ABC abc xyz} abcd nosort {} i2} |
| 414 do_test like-5.4 { |
| 415 set sqlite_like_count |
| 416 } 0 |
| 417 do_test like-5.5 { |
| 418 execsql { |
| 419 PRAGMA case_sensitive_like=on; |
| 420 } |
| 421 set sqlite_like_count 0 |
| 422 queryplan { |
| 423 SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1 |
| 424 } |
| 425 } {abc abcd nosort {} i2} |
| 426 do_test like-5.6 { |
| 427 set sqlite_like_count |
| 428 } 12 |
| 429 do_test like-5.7 { |
| 430 execsql { |
| 431 PRAGMA case_sensitive_like=off; |
| 432 } |
| 433 set sqlite_like_count 0 |
| 434 queryplan { |
| 435 SELECT x FROM t2 WHERE x GLOB 'abc*' ORDER BY 1 |
| 436 } |
| 437 } {abc abcd nosort {} i2} |
| 438 do_test like-5.8 { |
| 439 set sqlite_like_count |
| 440 } 12 |
| 441 do_test like-5.11 { |
| 442 execsql {PRAGMA case_sensitive_like=off} |
| 443 set sqlite_like_count 0 |
| 444 queryplan { |
| 445 SELECT x FROM t1 WHERE x LIKE 'ABC%' ORDER BY 1 |
| 446 } |
| 447 } {ABC {ABC abc xyz} abc abcd nosort {} i1} |
| 448 do_test like-5.12 { |
| 449 set sqlite_like_count |
| 450 } 12 |
| 451 do_test like-5.13 { |
| 452 set sqlite_like_count 0 |
| 453 queryplan { |
| 454 SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1 |
| 455 } |
| 456 } {abc ABC {ABC abc xyz} abcd nosort {} i2} |
| 457 do_test like-5.14 { |
| 458 set sqlite_like_count |
| 459 } 0 |
| 460 do_test like-5.15 { |
| 461 execsql { |
| 462 PRAGMA case_sensitive_like=on; |
| 463 } |
| 464 set sqlite_like_count 0 |
| 465 queryplan { |
| 466 SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1 |
| 467 } |
| 468 } {ABC {ABC abc xyz} nosort {} i2} |
| 469 do_test like-5.16 { |
| 470 set sqlite_like_count |
| 471 } 12 |
| 472 do_test like-5.17 { |
| 473 execsql { |
| 474 PRAGMA case_sensitive_like=off; |
| 475 } |
| 476 set sqlite_like_count 0 |
| 477 queryplan { |
| 478 SELECT x FROM t2 WHERE x GLOB 'ABC*' ORDER BY 1 |
| 479 } |
| 480 } {ABC {ABC abc xyz} nosort {} i2} |
| 481 do_test like-5.18 { |
| 482 set sqlite_like_count |
| 483 } 12 |
| 484 |
| 485 # Boundary case. The prefix for a LIKE comparison is rounded up |
| 486 # when constructing the comparison. Example: "ab" becomes "ac". |
| 487 # In other words, the last character is increased by one. |
| 488 # |
| 489 # Make sure this happens correctly when the last character is a |
| 490 # "z" and we are doing case-insensitive comparisons. |
| 491 # |
| 492 # Ticket #2959 |
| 493 # |
| 494 do_test like-5.21 { |
| 495 execsql { |
| 496 PRAGMA case_sensitive_like=off; |
| 497 INSERT INTO t2 VALUES('ZZ-upper-upper'); |
| 498 INSERT INTO t2 VALUES('zZ-lower-upper'); |
| 499 INSERT INTO t2 VALUES('Zz-upper-lower'); |
| 500 INSERT INTO t2 VALUES('zz-lower-lower'); |
| 501 } |
| 502 queryplan { |
| 503 SELECT x FROM t2 WHERE x LIKE 'zz%'; |
| 504 } |
| 505 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} |
| 506 do_test like-5.22 { |
| 507 queryplan { |
| 508 SELECT x FROM t2 WHERE x LIKE 'zZ%'; |
| 509 } |
| 510 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} |
| 511 do_test like-5.23 { |
| 512 queryplan { |
| 513 SELECT x FROM t2 WHERE x LIKE 'Zz%'; |
| 514 } |
| 515 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} |
| 516 do_test like-5.24 { |
| 517 queryplan { |
| 518 SELECT x FROM t2 WHERE x LIKE 'ZZ%'; |
| 519 } |
| 520 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} |
| 521 do_test like-5.25 { |
| 522 queryplan { |
| 523 PRAGMA case_sensitive_like=on; |
| 524 CREATE TABLE t3(x TEXT); |
| 525 CREATE INDEX i3 ON t3(x); |
| 526 INSERT INTO t3 VALUES('ZZ-upper-upper'); |
| 527 INSERT INTO t3 VALUES('zZ-lower-upper'); |
| 528 INSERT INTO t3 VALUES('Zz-upper-lower'); |
| 529 INSERT INTO t3 VALUES('zz-lower-lower'); |
| 530 SELECT x FROM t3 WHERE x LIKE 'zz%'; |
| 531 } |
| 532 } {zz-lower-lower nosort {} i3} |
| 533 do_test like-5.26 { |
| 534 queryplan { |
| 535 SELECT x FROM t3 WHERE x LIKE 'zZ%'; |
| 536 } |
| 537 } {zZ-lower-upper nosort {} i3} |
| 538 do_test like-5.27 { |
| 539 queryplan { |
| 540 SELECT x FROM t3 WHERE x LIKE 'Zz%'; |
| 541 } |
| 542 } {Zz-upper-lower nosort {} i3} |
| 543 do_test like-5.28 { |
| 544 queryplan { |
| 545 SELECT x FROM t3 WHERE x LIKE 'ZZ%'; |
| 546 } |
| 547 } {ZZ-upper-upper nosort {} i3} |
| 548 |
| 549 |
| 550 # ticket #2407 |
| 551 # |
| 552 # Make sure the LIKE prefix optimization does not strip off leading |
| 553 # characters of the like pattern that happen to be quote characters. |
| 554 # |
| 555 do_test like-6.1 { |
| 556 foreach x { 'abc 'bcd 'def 'ax } { |
| 557 set x2 '[string map {' ''} $x]' |
| 558 db eval "INSERT INTO t2 VALUES($x2)" |
| 559 } |
| 560 execsql { |
| 561 SELECT * FROM t2 WHERE x LIKE '''a%' |
| 562 } |
| 563 } {'abc 'ax} |
| 564 |
| 565 do_test like-7.1 { |
| 566 execsql { |
| 567 SELECT rowid, * FROM t1 WHERE rowid GLOB '1*' ORDER BY rowid; |
| 568 } |
| 569 } {1 a 10 ABC 11 CDE 12 {ABC abc xyz}} |
| 570 |
| 571 # ticket #3345. |
| 572 # |
| 573 # Overloading the LIKE function with -1 for the number of arguments |
| 574 # will overload both the 2-argument and the 3-argument LIKE. |
| 575 # |
| 576 do_test like-8.1 { |
| 577 db eval { |
| 578 CREATE TABLE t8(x); |
| 579 INSERT INTO t8 VALUES('abcdef'); |
| 580 INSERT INTO t8 VALUES('ghijkl'); |
| 581 INSERT INTO t8 VALUES('mnopqr'); |
| 582 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; |
| 583 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; |
| 584 } |
| 585 } {1 ghijkl 2 ghijkl} |
| 586 do_test like-8.2 { |
| 587 proc newlike {args} {return 1} ;# Alternative LIKE is always return TRUE |
| 588 db function like newlike ;# Uses -1 for nArg in sqlite3_create_function |
| 589 db cache flush |
| 590 db eval { |
| 591 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; |
| 592 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; |
| 593 } |
| 594 } {1 ghijkl 2 ghijkl} |
| 595 do_test like-8.3 { |
| 596 db function like -argcount 2 newlike |
| 597 db eval { |
| 598 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; |
| 599 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; |
| 600 } |
| 601 } {1 abcdef 1 ghijkl 1 mnopqr 2 ghijkl} |
| 602 do_test like-8.4 { |
| 603 db function like -argcount 3 newlike |
| 604 db eval { |
| 605 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; |
| 606 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; |
| 607 } |
| 608 } {1 abcdef 1 ghijkl 1 mnopqr 2 abcdef 2 ghijkl 2 mnopqr} |
| 609 |
| 610 |
| 611 ifcapable like_opt&&!icu { |
| 612 # Evaluate SQL. Return the result set followed by the |
| 613 # and the number of full-scan steps. |
| 614 # |
| 615 db close |
| 616 sqlite3 db test.db |
| 617 proc count_steps {sql} { |
| 618 set r [db eval $sql] |
| 619 lappend r scan [db status step] sort [db status sort] |
| 620 } |
| 621 do_test like-9.1 { |
| 622 count_steps { |
| 623 SELECT x FROM t2 WHERE x LIKE 'x%' |
| 624 } |
| 625 } {xyz scan 0 sort 0} |
| 626 do_test like-9.2 { |
| 627 count_steps { |
| 628 SELECT x FROM t2 WHERE x LIKE '_y%' |
| 629 } |
| 630 } {xyz scan 19 sort 0} |
| 631 do_test like-9.3.1 { |
| 632 set res [sqlite3_exec_hex db { |
| 633 SELECT x FROM t2 WHERE x LIKE '%78%25' |
| 634 }] |
| 635 } {0 {x xyz}} |
| 636 ifcapable explain { |
| 637 do_test like-9.3.2 { |
| 638 set res [sqlite3_exec_hex db { |
| 639 EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%78%25' |
| 640 }] |
| 641 regexp {INDEX i2} $res |
| 642 } {1} |
| 643 } |
| 644 do_test like-9.4.1 { |
| 645 sqlite3_exec_hex db {INSERT INTO t2 VALUES('%ffhello')} |
| 646 set res [sqlite3_exec_hex db { |
| 647 SELECT substr(x,2) AS x FROM t2 WHERE +x LIKE '%ff%25' |
| 648 }] |
| 649 } {0 {x hello}} |
| 650 do_test like-9.4.2 { |
| 651 set res [sqlite3_exec_hex db { |
| 652 SELECT substr(x,2) AS x FROM t2 WHERE x LIKE '%ff%25' |
| 653 }] |
| 654 } {0 {x hello}} |
| 655 ifcapable explain { |
| 656 do_test like-9.4.3 { |
| 657 set res [sqlite3_exec_hex db { |
| 658 EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%ff%25' |
| 659 }] |
| 660 regexp {INDEX i2} $res |
| 661 } {0} |
| 662 } |
| 663 do_test like-9.5.1 { |
| 664 set res [sqlite3_exec_hex db { |
| 665 SELECT x FROM t2 WHERE x LIKE '%fe%25' |
| 666 }] |
| 667 } {0 {}} |
| 668 ifcapable explain { |
| 669 do_test like-9.5.2 { |
| 670 set res [sqlite3_exec_hex db { |
| 671 EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%fe%25' |
| 672 }] |
| 673 regexp {INDEX i2} $res |
| 674 } {1} |
| 675 } |
| 676 |
| 677 # Do an SQL statement. Append the search count to the end of the result. |
| 678 # |
| 679 proc count sql { |
| 680 set ::sqlite_search_count 0 |
| 681 set ::sqlite_like_count 0 |
| 682 return [concat [execsql $sql] scan $::sqlite_search_count \ |
| 683 like $::sqlite_like_count] |
| 684 } |
| 685 |
| 686 # The LIKE and GLOB optimizations do not work on columns with |
| 687 # affinity other than TEXT. |
| 688 # Ticket #3901 |
| 689 # |
| 690 do_test like-10.1 { |
| 691 db close |
| 692 sqlite3 db test.db |
| 693 execsql { |
| 694 CREATE TABLE t10( |
| 695 a INTEGER PRIMARY KEY, |
| 696 b INTEGER COLLATE nocase UNIQUE, |
| 697 c NUMBER COLLATE nocase UNIQUE, |
| 698 d BLOB COLLATE nocase UNIQUE, |
| 699 e COLLATE nocase UNIQUE, |
| 700 f TEXT COLLATE nocase UNIQUE |
| 701 ); |
| 702 INSERT INTO t10 VALUES(1,1,1,1,1,1); |
| 703 INSERT INTO t10 VALUES(12,12,12,12,12,12); |
| 704 INSERT INTO t10 VALUES(123,123,123,123,123,123); |
| 705 INSERT INTO t10 VALUES(234,234,234,234,234,234); |
| 706 INSERT INTO t10 VALUES(345,345,345,345,345,345); |
| 707 INSERT INTO t10 VALUES(45,45,45,45,45,45); |
| 708 } |
| 709 count { |
| 710 SELECT a FROM t10 WHERE b LIKE '12%' ORDER BY +a; |
| 711 } |
| 712 } {12 123 scan 5 like 6} |
| 713 do_test like-10.2 { |
| 714 count { |
| 715 SELECT a FROM t10 WHERE c LIKE '12%' ORDER BY +a; |
| 716 } |
| 717 } {12 123 scan 5 like 6} |
| 718 do_test like-10.3 { |
| 719 count { |
| 720 SELECT a FROM t10 WHERE d LIKE '12%' ORDER BY +a; |
| 721 } |
| 722 } {12 123 scan 5 like 6} |
| 723 do_test like-10.4 { |
| 724 count { |
| 725 SELECT a FROM t10 WHERE e LIKE '12%' ORDER BY +a; |
| 726 } |
| 727 } {12 123 scan 5 like 6} |
| 728 do_test like-10.5 { |
| 729 count { |
| 730 SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a; |
| 731 } |
| 732 } {12 123 scan 3 like 0} |
| 733 do_test like-10.6 { |
| 734 count { |
| 735 SELECT a FROM t10 WHERE a LIKE '12%' ORDER BY +a; |
| 736 } |
| 737 } {12 123 scan 5 like 6} |
| 738 do_test like-10.10 { |
| 739 execsql { |
| 740 CREATE TABLE t10b( |
| 741 a INTEGER PRIMARY KEY, |
| 742 b INTEGER UNIQUE, |
| 743 c NUMBER UNIQUE, |
| 744 d BLOB UNIQUE, |
| 745 e UNIQUE, |
| 746 f TEXT UNIQUE |
| 747 ); |
| 748 INSERT INTO t10b SELECT * FROM t10; |
| 749 } |
| 750 count { |
| 751 SELECT a FROM t10b WHERE b GLOB '12*' ORDER BY +a; |
| 752 } |
| 753 } {12 123 scan 5 like 6} |
| 754 do_test like-10.11 { |
| 755 count { |
| 756 SELECT a FROM t10b WHERE c GLOB '12*' ORDER BY +a; |
| 757 } |
| 758 } {12 123 scan 5 like 6} |
| 759 do_test like-10.12 { |
| 760 count { |
| 761 SELECT a FROM t10b WHERE d GLOB '12*' ORDER BY +a; |
| 762 } |
| 763 } {12 123 scan 5 like 6} |
| 764 do_test like-10.13 { |
| 765 count { |
| 766 SELECT a FROM t10b WHERE e GLOB '12*' ORDER BY +a; |
| 767 } |
| 768 } {12 123 scan 5 like 6} |
| 769 do_test like-10.14 { |
| 770 count { |
| 771 SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a; |
| 772 } |
| 773 } {12 123 scan 3 like 0} |
| 774 do_test like-10.15 { |
| 775 count { |
| 776 SELECT a FROM t10b WHERE a GLOB '12*' ORDER BY +a; |
| 777 } |
| 778 } {12 123 scan 5 like 6} |
| 779 } |
| 780 |
| 781 # LIKE and GLOB where the default collating sequence is not appropriate |
| 782 # but an index with the appropriate collating sequence exists. |
| 783 # |
| 784 do_test like-11.0 { |
| 785 execsql { |
| 786 CREATE TABLE t11( |
| 787 a INTEGER PRIMARY KEY, |
| 788 b TEXT COLLATE nocase, |
| 789 c TEXT COLLATE binary |
| 790 ); |
| 791 INSERT INTO t11 VALUES(1, 'a','a'); |
| 792 INSERT INTO t11 VALUES(2, 'ab','ab'); |
| 793 INSERT INTO t11 VALUES(3, 'abc','abc'); |
| 794 INSERT INTO t11 VALUES(4, 'abcd','abcd'); |
| 795 INSERT INTO t11 VALUES(5, 'A','A'); |
| 796 INSERT INTO t11 VALUES(6, 'AB','AB'); |
| 797 INSERT INTO t11 VALUES(7, 'ABC','ABC'); |
| 798 INSERT INTO t11 VALUES(8, 'ABCD','ABCD'); |
| 799 INSERT INTO t11 VALUES(9, 'x','x'); |
| 800 INSERT INTO t11 VALUES(10, 'yz','yz'); |
| 801 INSERT INTO t11 VALUES(11, 'X','X'); |
| 802 INSERT INTO t11 VALUES(12, 'YZ','YZ'); |
| 803 SELECT count(*) FROM t11; |
| 804 } |
| 805 } {12} |
| 806 do_test like-11.1 { |
| 807 queryplan { |
| 808 PRAGMA case_sensitive_like=OFF; |
| 809 SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a; |
| 810 } |
| 811 } {abc abcd ABC ABCD nosort t11 *} |
| 812 do_test like-11.2 { |
| 813 queryplan { |
| 814 PRAGMA case_sensitive_like=ON; |
| 815 SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a; |
| 816 } |
| 817 } {abc abcd nosort t11 *} |
| 818 do_test like-11.3 { |
| 819 queryplan { |
| 820 PRAGMA case_sensitive_like=OFF; |
| 821 CREATE INDEX t11b ON t11(b); |
| 822 SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; |
| 823 } |
| 824 } {abc abcd ABC ABCD sort {} t11b} |
| 825 do_test like-11.4 { |
| 826 queryplan { |
| 827 PRAGMA case_sensitive_like=ON; |
| 828 SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a; |
| 829 } |
| 830 } {abc abcd nosort t11 *} |
| 831 do_test like-11.5 { |
| 832 queryplan { |
| 833 PRAGMA case_sensitive_like=OFF; |
| 834 DROP INDEX t11b; |
| 835 CREATE INDEX t11bnc ON t11(b COLLATE nocase); |
| 836 SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; |
| 837 } |
| 838 } {abc abcd ABC ABCD sort {} t11bnc} |
| 839 do_test like-11.6 { |
| 840 queryplan { |
| 841 CREATE INDEX t11bb ON t11(b COLLATE binary); |
| 842 SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; |
| 843 } |
| 844 } {abc abcd ABC ABCD sort {} t11bnc} |
| 845 do_test like-11.7 { |
| 846 queryplan { |
| 847 PRAGMA case_sensitive_like=ON; |
| 848 SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; |
| 849 } |
| 850 } {abc abcd sort {} t11bb} |
| 851 do_test like-11.8 { |
| 852 queryplan { |
| 853 PRAGMA case_sensitive_like=OFF; |
| 854 SELECT b FROM t11 WHERE b GLOB 'abc*' ORDER BY +a; |
| 855 } |
| 856 } {abc abcd sort {} t11bb} |
| 857 do_test like-11.9 { |
| 858 queryplan { |
| 859 CREATE INDEX t11cnc ON t11(c COLLATE nocase); |
| 860 CREATE INDEX t11cb ON t11(c COLLATE binary); |
| 861 SELECT c FROM t11 WHERE c LIKE 'abc%' ORDER BY +a; |
| 862 } |
| 863 } {abc abcd ABC ABCD sort {} t11cnc} |
| 864 do_test like-11.10 { |
| 865 queryplan { |
| 866 SELECT c FROM t11 WHERE c GLOB 'abc*' ORDER BY +a; |
| 867 } |
| 868 } {abc abcd sort {} t11cb} |
| 869 |
| 870 |
| 871 finish_test |
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