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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 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 # Partial optimization when the pattern does not end in '%' | |
| 198 # | |
| 199 do_test like-3.5 { | |
| 200 set sqlite_like_count 0 | |
| 201 queryplan { | |
| 202 SELECT x FROM t1 WHERE x LIKE 'a_c' ORDER BY 1; | |
| 203 } | |
| 204 } {abc nosort {} i1} | |
| 205 do_test like-3.6 { | |
| 206 set sqlite_like_count | |
| 207 } 6 | |
| 208 do_test like-3.7 { | |
| 209 set sqlite_like_count 0 | |
| 210 queryplan { | |
| 211 SELECT x FROM t1 WHERE x LIKE 'ab%d' ORDER BY 1; | |
| 212 } | |
| 213 } {abcd abd nosort {} i1} | |
| 214 do_test like-3.8 { | |
| 215 set sqlite_like_count | |
| 216 } 4 | |
| 217 do_test like-3.9 { | |
| 218 set sqlite_like_count 0 | |
| 219 queryplan { | |
| 220 SELECT x FROM t1 WHERE x LIKE 'a_c%' ORDER BY 1; | |
| 221 } | |
| 222 } {abc abcd nosort {} i1} | |
| 223 do_test like-3.10 { | |
| 224 set sqlite_like_count | |
| 225 } 6 | |
| 226 | |
| 227 # No optimization when the pattern begins with a wildcard. | |
| 228 # Note that the index is still used but only for sorting. | |
| 229 # | |
| 230 do_test like-3.11 { | |
| 231 set sqlite_like_count 0 | |
| 232 queryplan { | |
| 233 SELECT x FROM t1 WHERE x LIKE '%bcd' ORDER BY 1; | |
| 234 } | |
| 235 } {abcd bcd nosort {} i1} | |
| 236 do_test like-3.12 { | |
| 237 set sqlite_like_count | |
| 238 } 12 | |
| 239 | |
| 240 # No optimization for case insensitive LIKE | |
| 241 # | |
| 242 do_test like-3.13 { | |
| 243 set sqlite_like_count 0 | |
| 244 queryplan { | |
| 245 PRAGMA case_sensitive_like=off; | |
| 246 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; | |
| 247 } | |
| 248 } {ABC {ABC abc xyz} abc abcd nosort {} i1} | |
| 249 do_test like-3.14 { | |
| 250 set sqlite_like_count | |
| 251 } 12 | |
| 252 | |
| 253 # No optimization without an index. | |
| 254 # | |
| 255 do_test like-3.15 { | |
| 256 set sqlite_like_count 0 | |
| 257 queryplan { | |
| 258 PRAGMA case_sensitive_like=on; | |
| 259 DROP INDEX i1; | |
| 260 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; | |
| 261 } | |
| 262 } {abc abcd sort t1 {}} | |
| 263 do_test like-3.16 { | |
| 264 set sqlite_like_count | |
| 265 } 12 | |
| 266 | |
| 267 # No GLOB optimization without an index. | |
| 268 # | |
| 269 do_test like-3.17 { | |
| 270 set sqlite_like_count 0 | |
| 271 queryplan { | |
| 272 SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; | |
| 273 } | |
| 274 } {abc abcd sort t1 {}} | |
| 275 do_test like-3.18 { | |
| 276 set sqlite_like_count | |
| 277 } 12 | |
| 278 | |
| 279 # GLOB is optimized regardless of the case_sensitive_like setting. | |
| 280 # | |
| 281 do_test like-3.19 { | |
| 282 set sqlite_like_count 0 | |
| 283 queryplan { | |
| 284 CREATE INDEX i1 ON t1(x); | |
| 285 SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; | |
| 286 } | |
| 287 } {abc abcd nosort {} i1} | |
| 288 do_test like-3.20 { | |
| 289 set sqlite_like_count | |
| 290 } 0 | |
| 291 do_test like-3.21 { | |
| 292 set sqlite_like_count 0 | |
| 293 queryplan { | |
| 294 PRAGMA case_sensitive_like=on; | |
| 295 SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; | |
| 296 } | |
| 297 } {abc abcd nosort {} i1} | |
| 298 do_test like-3.22 { | |
| 299 set sqlite_like_count | |
| 300 } 0 | |
| 301 do_test like-3.23 { | |
| 302 set sqlite_like_count 0 | |
| 303 queryplan { | |
| 304 PRAGMA case_sensitive_like=off; | |
| 305 SELECT x FROM t1 WHERE x GLOB 'a[bc]d' ORDER BY 1; | |
| 306 } | |
| 307 } {abd acd nosort {} i1} | |
| 308 do_test like-3.24 { | |
| 309 set sqlite_like_count | |
| 310 } 6 | |
| 311 | |
| 312 # No optimization if the LHS of the LIKE is not a column name or | |
| 313 # if the RHS is not a string. | |
| 314 # | |
| 315 do_test like-4.1 { | |
| 316 execsql {PRAGMA case_sensitive_like=on} | |
| 317 set sqlite_like_count 0 | |
| 318 queryplan { | |
| 319 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1 | |
| 320 } | |
| 321 } {abc abcd nosort {} i1} | |
| 322 do_test like-4.2 { | |
| 323 set sqlite_like_count | |
| 324 } 0 | |
| 325 do_test like-4.3 { | |
| 326 set sqlite_like_count 0 | |
| 327 queryplan { | |
| 328 SELECT x FROM t1 WHERE +x LIKE 'abc%' ORDER BY 1 | |
| 329 } | |
| 330 } {abc abcd nosort {} i1} | |
| 331 do_test like-4.4 { | |
| 332 set sqlite_like_count | |
| 333 } 12 | |
| 334 do_test like-4.5 { | |
| 335 set sqlite_like_count 0 | |
| 336 queryplan { | |
| 337 SELECT x FROM t1 WHERE x LIKE ('ab' || 'c%') ORDER BY 1 | |
| 338 } | |
| 339 } {abc abcd nosort {} i1} | |
| 340 do_test like-4.6 { | |
| 341 set sqlite_like_count | |
| 342 } 12 | |
| 343 | |
| 344 # Collating sequences on the index disable the LIKE optimization. | |
| 345 # Or if the NOCASE collating sequence is used, the LIKE optimization | |
| 346 # is enabled when case_sensitive_like is OFF. | |
| 347 # | |
| 348 do_test like-5.1 { | |
| 349 execsql {PRAGMA case_sensitive_like=off} | |
| 350 set sqlite_like_count 0 | |
| 351 queryplan { | |
| 352 SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1 | |
| 353 } | |
| 354 } {ABC {ABC abc xyz} abc abcd nosort {} i1} | |
| 355 do_test like-5.2 { | |
| 356 set sqlite_like_count | |
| 357 } 12 | |
| 358 do_test like-5.3 { | |
| 359 execsql { | |
| 360 CREATE TABLE t2(x TEXT COLLATE NOCASE); | |
| 361 INSERT INTO t2 SELECT * FROM t1; | |
| 362 CREATE INDEX i2 ON t2(x COLLATE NOCASE); | |
| 363 } | |
| 364 set sqlite_like_count 0 | |
| 365 queryplan { | |
| 366 SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1 | |
| 367 } | |
| 368 } {abc ABC {ABC abc xyz} abcd nosort {} i2} | |
| 369 do_test like-5.4 { | |
| 370 set sqlite_like_count | |
| 371 } 0 | |
| 372 do_test like-5.5 { | |
| 373 execsql { | |
| 374 PRAGMA case_sensitive_like=on; | |
| 375 } | |
| 376 set sqlite_like_count 0 | |
| 377 queryplan { | |
| 378 SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1 | |
| 379 } | |
| 380 } {abc abcd nosort {} i2} | |
| 381 do_test like-5.6 { | |
| 382 set sqlite_like_count | |
| 383 } 12 | |
| 384 do_test like-5.7 { | |
| 385 execsql { | |
| 386 PRAGMA case_sensitive_like=off; | |
| 387 } | |
| 388 set sqlite_like_count 0 | |
| 389 queryplan { | |
| 390 SELECT x FROM t2 WHERE x GLOB 'abc*' ORDER BY 1 | |
| 391 } | |
| 392 } {abc abcd nosort {} i2} | |
| 393 do_test like-5.8 { | |
| 394 set sqlite_like_count | |
| 395 } 12 | |
| 396 do_test like-5.11 { | |
| 397 execsql {PRAGMA case_sensitive_like=off} | |
| 398 set sqlite_like_count 0 | |
| 399 queryplan { | |
| 400 SELECT x FROM t1 WHERE x LIKE 'ABC%' ORDER BY 1 | |
| 401 } | |
| 402 } {ABC {ABC abc xyz} abc abcd nosort {} i1} | |
| 403 do_test like-5.12 { | |
| 404 set sqlite_like_count | |
| 405 } 12 | |
| 406 do_test like-5.13 { | |
| 407 set sqlite_like_count 0 | |
| 408 queryplan { | |
| 409 SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1 | |
| 410 } | |
| 411 } {abc ABC {ABC abc xyz} abcd nosort {} i2} | |
| 412 do_test like-5.14 { | |
| 413 set sqlite_like_count | |
| 414 } 0 | |
| 415 do_test like-5.15 { | |
| 416 execsql { | |
| 417 PRAGMA case_sensitive_like=on; | |
| 418 } | |
| 419 set sqlite_like_count 0 | |
| 420 queryplan { | |
| 421 SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1 | |
| 422 } | |
| 423 } {ABC {ABC abc xyz} nosort {} i2} | |
| 424 do_test like-5.16 { | |
| 425 set sqlite_like_count | |
| 426 } 12 | |
| 427 do_test like-5.17 { | |
| 428 execsql { | |
| 429 PRAGMA case_sensitive_like=off; | |
| 430 } | |
| 431 set sqlite_like_count 0 | |
| 432 queryplan { | |
| 433 SELECT x FROM t2 WHERE x GLOB 'ABC*' ORDER BY 1 | |
| 434 } | |
| 435 } {ABC {ABC abc xyz} nosort {} i2} | |
| 436 do_test like-5.18 { | |
| 437 set sqlite_like_count | |
| 438 } 12 | |
| 439 | |
| 440 # Boundary case. The prefix for a LIKE comparison is rounded up | |
| 441 # when constructing the comparison. Example: "ab" becomes "ac". | |
| 442 # In other words, the last character is increased by one. | |
| 443 # | |
| 444 # Make sure this happens correctly when the last character is a | |
| 445 # "z" and we are doing case-insensitive comparisons. | |
| 446 # | |
| 447 # Ticket #2959 | |
| 448 # | |
| 449 do_test like-5.21 { | |
| 450 execsql { | |
| 451 PRAGMA case_sensitive_like=off; | |
| 452 INSERT INTO t2 VALUES('ZZ-upper-upper'); | |
| 453 INSERT INTO t2 VALUES('zZ-lower-upper'); | |
| 454 INSERT INTO t2 VALUES('Zz-upper-lower'); | |
| 455 INSERT INTO t2 VALUES('zz-lower-lower'); | |
| 456 } | |
| 457 queryplan { | |
| 458 SELECT x FROM t2 WHERE x LIKE 'zz%'; | |
| 459 } | |
| 460 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} | |
| 461 do_test like-5.22 { | |
| 462 queryplan { | |
| 463 SELECT x FROM t2 WHERE x LIKE 'zZ%'; | |
| 464 } | |
| 465 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} | |
| 466 do_test like-5.23 { | |
| 467 queryplan { | |
| 468 SELECT x FROM t2 WHERE x LIKE 'Zz%'; | |
| 469 } | |
| 470 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} | |
| 471 do_test like-5.24 { | |
| 472 queryplan { | |
| 473 SELECT x FROM t2 WHERE x LIKE 'ZZ%'; | |
| 474 } | |
| 475 } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2} | |
| 476 do_test like-5.25 { | |
| 477 queryplan { | |
| 478 PRAGMA case_sensitive_like=on; | |
| 479 CREATE TABLE t3(x TEXT); | |
| 480 CREATE INDEX i3 ON t3(x); | |
| 481 INSERT INTO t3 VALUES('ZZ-upper-upper'); | |
| 482 INSERT INTO t3 VALUES('zZ-lower-upper'); | |
| 483 INSERT INTO t3 VALUES('Zz-upper-lower'); | |
| 484 INSERT INTO t3 VALUES('zz-lower-lower'); | |
| 485 SELECT x FROM t3 WHERE x LIKE 'zz%'; | |
| 486 } | |
| 487 } {zz-lower-lower nosort {} i3} | |
| 488 do_test like-5.26 { | |
| 489 queryplan { | |
| 490 SELECT x FROM t3 WHERE x LIKE 'zZ%'; | |
| 491 } | |
| 492 } {zZ-lower-upper nosort {} i3} | |
| 493 do_test like-5.27 { | |
| 494 queryplan { | |
| 495 SELECT x FROM t3 WHERE x LIKE 'Zz%'; | |
| 496 } | |
| 497 } {Zz-upper-lower nosort {} i3} | |
| 498 do_test like-5.28 { | |
| 499 queryplan { | |
| 500 SELECT x FROM t3 WHERE x LIKE 'ZZ%'; | |
| 501 } | |
| 502 } {ZZ-upper-upper nosort {} i3} | |
| 503 | |
| 504 | |
| 505 # ticket #2407 | |
| 506 # | |
| 507 # Make sure the LIKE prefix optimization does not strip off leading | |
| 508 # characters of the like pattern that happen to be quote characters. | |
| 509 # | |
| 510 do_test like-6.1 { | |
| 511 foreach x { 'abc 'bcd 'def 'ax } { | |
| 512 set x2 '[string map {' ''} $x]' | |
| 513 db eval "INSERT INTO t2 VALUES($x2)" | |
| 514 } | |
| 515 execsql { | |
| 516 SELECT * FROM t2 WHERE x LIKE '''a%' | |
| 517 } | |
| 518 } {'abc 'ax} | |
| 519 | |
| 520 do_test like-7.1 { | |
| 521 execsql { | |
| 522 SELECT rowid, * FROM t1 WHERE rowid GLOB '1*' ORDER BY rowid; | |
| 523 } | |
| 524 } {1 a 10 ABC 11 CDE 12 {ABC abc xyz}} | |
| 525 | |
| 526 # ticket #3345. | |
| 527 # | |
| 528 # Overloading the LIKE function with -1 for the number of arguments | |
| 529 # will overload both the 2-argument and the 3-argument LIKE. | |
| 530 # | |
| 531 do_test like-8.1 { | |
| 532 db eval { | |
| 533 CREATE TABLE t8(x); | |
| 534 INSERT INTO t8 VALUES('abcdef'); | |
| 535 INSERT INTO t8 VALUES('ghijkl'); | |
| 536 INSERT INTO t8 VALUES('mnopqr'); | |
| 537 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; | |
| 538 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; | |
| 539 } | |
| 540 } {1 ghijkl 2 ghijkl} | |
| 541 do_test like-8.2 { | |
| 542 proc newlike {args} {return 1} ;# Alternative LIKE is always return TRUE | |
| 543 db function like newlike ;# Uses -1 for nArg in sqlite3_create_function | |
| 544 db cache flush | |
| 545 db eval { | |
| 546 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; | |
| 547 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; | |
| 548 } | |
| 549 } {1 ghijkl 2 ghijkl} | |
| 550 do_test like-8.3 { | |
| 551 db function like -argcount 2 newlike | |
| 552 db eval { | |
| 553 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; | |
| 554 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; | |
| 555 } | |
| 556 } {1 abcdef 1 ghijkl 1 mnopqr 2 ghijkl} | |
| 557 do_test like-8.4 { | |
| 558 db function like -argcount 3 newlike | |
| 559 db eval { | |
| 560 SELECT 1, x FROM t8 WHERE x LIKE '%h%'; | |
| 561 SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x'; | |
| 562 } | |
| 563 } {1 abcdef 1 ghijkl 1 mnopqr 2 abcdef 2 ghijkl 2 mnopqr} | |
| 564 | |
| 565 | |
| 566 ifcapable like_opt { | |
| 567 # Evaluate SQL. Return the result set followed by the | |
| 568 # and the number of full-scan steps. | |
| 569 # | |
| 570 db close | |
| 571 sqlite3 db test.db | |
| 572 proc count_steps {sql} { | |
| 573 set r [db eval $sql] | |
| 574 lappend r scan [db status step] sort [db status sort] | |
| 575 } | |
| 576 do_test like-9.1 { | |
| 577 count_steps { | |
| 578 SELECT x FROM t2 WHERE x LIKE 'x%' | |
| 579 } | |
| 580 } {xyz scan 0 sort 0} | |
| 581 do_test like-9.2 { | |
| 582 count_steps { | |
| 583 SELECT x FROM t2 WHERE x LIKE '_y%' | |
| 584 } | |
| 585 } {xyz scan 19 sort 0} | |
| 586 do_test like-9.3.1 { | |
| 587 set res [sqlite3_exec_hex db { | |
| 588 SELECT x FROM t2 WHERE x LIKE '%78%25' | |
| 589 }] | |
| 590 } {0 {x xyz}} | |
| 591 ifcapable explain { | |
| 592 do_test like-9.3.2 { | |
| 593 set res [sqlite3_exec_hex db { | |
| 594 EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%78%25' | |
| 595 }] | |
| 596 regexp {INDEX i2} $res | |
| 597 } {1} | |
| 598 } | |
| 599 do_test like-9.4.1 { | |
| 600 sqlite3_exec_hex db {INSERT INTO t2 VALUES('%ffhello')} | |
| 601 set res [sqlite3_exec_hex db { | |
| 602 SELECT substr(x,2) AS x FROM t2 WHERE +x LIKE '%ff%25' | |
| 603 }] | |
| 604 } {0 {x hello}} | |
| 605 do_test like-9.4.2 { | |
| 606 set res [sqlite3_exec_hex db { | |
| 607 SELECT substr(x,2) AS x FROM t2 WHERE x LIKE '%ff%25' | |
| 608 }] | |
| 609 } {0 {x hello}} | |
| 610 ifcapable explain { | |
| 611 do_test like-9.4.3 { | |
| 612 set res [sqlite3_exec_hex db { | |
| 613 EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%ff%25' | |
| 614 }] | |
| 615 regexp {INDEX i2} $res | |
| 616 } {0} | |
| 617 } | |
| 618 do_test like-9.5.1 { | |
| 619 set res [sqlite3_exec_hex db { | |
| 620 SELECT x FROM t2 WHERE x LIKE '%fe%25' | |
| 621 }] | |
| 622 } {0 {}} | |
| 623 ifcapable explain { | |
| 624 do_test like-9.5.2 { | |
| 625 set res [sqlite3_exec_hex db { | |
| 626 EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%fe%25' | |
| 627 }] | |
| 628 regexp {INDEX i2} $res | |
| 629 } {1} | |
| 630 } | |
| 631 } | |
| 632 | |
| 633 # Do an SQL statement. Append the search count to the end of the result. | |
| 634 # | |
| 635 proc count sql { | |
| 636 set ::sqlite_search_count 0 | |
| 637 set ::sqlite_like_count 0 | |
| 638 return [concat [execsql $sql] scan $::sqlite_search_count \ | |
| 639 like $::sqlite_like_count] | |
| 640 } | |
| 641 | |
| 642 # The LIKE and GLOB optimizations do not work on columns with | |
| 643 # affinity other than TEXT. | |
| 644 # Ticket #3901 | |
| 645 # | |
| 646 do_test like-10.1 { | |
| 647 db close | |
| 648 sqlite3 db test.db | |
| 649 execsql { | |
| 650 CREATE TABLE t10( | |
| 651 a INTEGER PRIMARY KEY, | |
| 652 b INTEGER COLLATE nocase UNIQUE, | |
| 653 c NUMBER COLLATE nocase UNIQUE, | |
| 654 d BLOB COLLATE nocase UNIQUE, | |
| 655 e COLLATE nocase UNIQUE, | |
| 656 f TEXT COLLATE nocase UNIQUE | |
| 657 ); | |
| 658 INSERT INTO t10 VALUES(1,1,1,1,1,1); | |
| 659 INSERT INTO t10 VALUES(12,12,12,12,12,12); | |
| 660 INSERT INTO t10 VALUES(123,123,123,123,123,123); | |
| 661 INSERT INTO t10 VALUES(234,234,234,234,234,234); | |
| 662 INSERT INTO t10 VALUES(345,345,345,345,345,345); | |
| 663 INSERT INTO t10 VALUES(45,45,45,45,45,45); | |
| 664 } | |
| 665 count { | |
| 666 SELECT a FROM t10 WHERE b LIKE '12%' ORDER BY a; | |
| 667 } | |
| 668 } {12 123 scan 5 like 6} | |
| 669 do_test like-10.2 { | |
| 670 count { | |
| 671 SELECT a FROM t10 WHERE c LIKE '12%' ORDER BY a; | |
| 672 } | |
| 673 } {12 123 scan 5 like 6} | |
| 674 do_test like-10.3 { | |
| 675 count { | |
| 676 SELECT a FROM t10 WHERE d LIKE '12%' ORDER BY a; | |
| 677 } | |
| 678 } {12 123 scan 5 like 6} | |
| 679 do_test like-10.4 { | |
| 680 count { | |
| 681 SELECT a FROM t10 WHERE e LIKE '12%' ORDER BY a; | |
| 682 } | |
| 683 } {12 123 scan 5 like 6} | |
| 684 do_test like-10.5 { | |
| 685 count { | |
| 686 SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY a; | |
| 687 } | |
| 688 } {12 123 scan 3 like 0} | |
| 689 do_test like-10.6 { | |
| 690 count { | |
| 691 SELECT a FROM t10 WHERE a LIKE '12%' ORDER BY a; | |
| 692 } | |
| 693 } {12 123 scan 5 like 6} | |
| 694 do_test like-10.10 { | |
| 695 execsql { | |
| 696 CREATE TABLE t10b( | |
| 697 a INTEGER PRIMARY KEY, | |
| 698 b INTEGER UNIQUE, | |
| 699 c NUMBER UNIQUE, | |
| 700 d BLOB UNIQUE, | |
| 701 e UNIQUE, | |
| 702 f TEXT UNIQUE | |
| 703 ); | |
| 704 INSERT INTO t10b SELECT * FROM t10; | |
| 705 } | |
| 706 count { | |
| 707 SELECT a FROM t10b WHERE b GLOB '12*' ORDER BY a; | |
| 708 } | |
| 709 } {12 123 scan 5 like 6} | |
| 710 do_test like-10.11 { | |
| 711 count { | |
| 712 SELECT a FROM t10b WHERE c GLOB '12*' ORDER BY a; | |
| 713 } | |
| 714 } {12 123 scan 5 like 6} | |
| 715 do_test like-10.12 { | |
| 716 count { | |
| 717 SELECT a FROM t10b WHERE d GLOB '12*' ORDER BY a; | |
| 718 } | |
| 719 } {12 123 scan 5 like 6} | |
| 720 do_test like-10.13 { | |
| 721 count { | |
| 722 SELECT a FROM t10b WHERE e GLOB '12*' ORDER BY a; | |
| 723 } | |
| 724 } {12 123 scan 5 like 6} | |
| 725 do_test like-10.14 { | |
| 726 count { | |
| 727 SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY a; | |
| 728 } | |
| 729 } {12 123 scan 3 like 0} | |
| 730 do_test like-10.15 { | |
| 731 count { | |
| 732 SELECT a FROM t10b WHERE a GLOB '12*' ORDER BY a; | |
| 733 } | |
| 734 } {12 123 scan 5 like 6} | |
| 735 | |
| 736 | |
| 737 finish_test | |
| OLD | NEW |