Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
Comment: | Copy the new version of script "like.test" from sqlite3 to this project. Then tweak it to work. |
---|---|
Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
146846406926284ee51e0b868447baf6 |
User & Date: | dan 2013-07-04 18:44:53.813 |
Context
2013-07-06
| ||
03:59 | Display sqlite4_nums correctly when explaining query plans. check-in: 40b76362c9 user: peterreid tags: trunk | |
2013-07-04
| ||
18:44 | Copy the new version of script "like.test" from sqlite3 to this project. Then tweak it to work. check-in: 1468464069 user: dan tags: trunk | |
17:17 | Fix a problem with reading utf-8 encoded text values from the database when the first byte of the text is 0x02. check-in: 2711bdb5fd user: dan tags: trunk | |
Changes
Changes to test/like.test.
︙ | ︙ | |||
127 128 129 130 131 132 133 | execsql { SELECT x FROM t1 WHERE x REGEXP '^abc' ORDER BY 1; } } {abc abcd} # Tests of the MATCH operator # | | | | < > | | | < > | | | | < > | | > > > > > > > > > > > > > | | | | | | | | | | | > < | | > > | | | > < | > < | | | | | | | | | | | | | | | | | 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 | execsql { SELECT x FROM t1 WHERE x REGEXP '^abc' ORDER BY 1; } } {abc abcd} # Tests of the MATCH operator # # do_test like-2.3 { # proc test_match {a b} { # return [string match $a $b] # } # db function match -argcount 2 test_match # execsql { # SELECT x FROM t1 WHERE x MATCH '*abc*' ORDER BY 1; # } # } {{ABC abc xyz} abc abcd} # do_test like-2.4 { # execsql { # SELECT x FROM t1 WHERE x MATCH 'abc*' ORDER BY 1; # } # } {abc abcd} # For the remaining tests, we need to have the like optimizations # enabled. # ifcapable !like_opt { finish_test return } # This procedure executes the SQL. Then it appends to the result the # "sort" or "nosort" keyword (as in the cksort procedure above) then # it appends the names of the table and index used. # proc queryplan {sql} { set ::sqlite_sort_count 0 set data [execsql $sql] if {$::sqlite_sort_count} {set x sort} {set x nosort} lappend data $x set eqp [execsql "EXPLAIN QUERY PLAN $sql"] # puts eqp=$eqp foreach {a b c x} $eqp { if {[regexp { TABLE (\w+ AS )?(\w+) USING COVERING INDEX (\w+)\y} \ $x all as tab idx]} { lappend data {} $idx } elseif {[regexp { TABLE (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \ $x all as tab idx]} { lappend data $tab $idx } elseif {[regexp { TABLE (\w+ AS )?(\w+)\y} $x all as tab]} { lappend data $tab * } } return $data } # Perform tests on the like optimization. # # With no index on t1.x and with case sensitivity turned off, no optimization # is performed. # do_test like-3.1 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; } } {ABC {ABC abc xyz} abc abcd sort t1 *} do_test like-3.2 { set sqlite_like_count } {12} # With an index on t1.x and case sensitivity on, optimize completely. # do_test like-3.3 { set sqlite_like_count 0 execsql { PRAGMA case_sensitive_like=on; CREATE INDEX i1 ON t1(x); } queryplan { SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; } } {abc abcd nosort t1 i1} do_test like-3.4 { set sqlite_like_count } 0 # The LIKE optimization still works when the RHS is a string with no # wildcard. Ticket [e090183531fc2747] # do_test like-3.4.2 { queryplan { SELECT x FROM t1 WHERE x LIKE 'a' ORDER BY 1; } } {a nosort t1 i1} do_test like-3.4.3 { queryplan { SELECT x FROM t1 WHERE x LIKE 'ab' ORDER BY 1; } } {ab nosort t1 i1} do_test like-3.4.4 { queryplan { SELECT x FROM t1 WHERE x LIKE 'abcd' ORDER BY 1; } } {abcd nosort t1 i1} do_test like-3.4.5 { queryplan { SELECT x FROM t1 WHERE x LIKE 'abcde' ORDER BY 1; } } {nosort t1 i1} # Partial optimization when the pattern does not end in '%' # do_test like-3.5 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE 'a_c' ORDER BY 1; } } {abc nosort t1 i1} do_test like-3.6 { set sqlite_like_count } 6 do_test like-3.7 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE 'ab%d' ORDER BY 1; } } {abcd abd nosort t1 i1} do_test like-3.8 { set sqlite_like_count } 4 do_test like-3.9 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE 'a_c%' ORDER BY 1; } } {abc abcd nosort t1 i1} do_test like-3.10 { set sqlite_like_count } 6 # No optimization when the pattern begins with a wildcard. # Note that the index is still used but only for sorting. # do_test like-3.11 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE '%bcd' ORDER BY 1; } } {abcd bcd nosort t1 i1} do_test like-3.12 { set sqlite_like_count } 12 # No optimization for case insensitive LIKE # do_test like-3.13 { set sqlite_like_count 0 db eval {PRAGMA case_sensitive_like=off;} queryplan { SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; } } {ABC {ABC abc xyz} abc abcd nosort t1 i1} do_test like-3.14 { set sqlite_like_count } 12 # No optimization without an index. # do_test like-3.15 { set sqlite_like_count 0 db eval { PRAGMA case_sensitive_like=on; DROP INDEX i1; } queryplan { SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1; } } {abc abcd sort t1 *} do_test like-3.16 { set sqlite_like_count } 12 # No GLOB optimization without an index. # do_test like-3.17 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; } } {abc abcd sort t1 *} do_test like-3.18 { set sqlite_like_count } 12 # GLOB is optimized regardless of the case_sensitive_like setting. # do_test like-3.19 { set sqlite_like_count 0 db eval {CREATE INDEX i1 ON t1(x);} queryplan { SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; } } {abc abcd nosort t1 i1} do_test like-3.20 { set sqlite_like_count } 0 do_test like-3.21 { set sqlite_like_count 0 db eval {PRAGMA case_sensitive_like=on;} queryplan { SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1; } } {abc abcd nosort t1 i1} do_test like-3.22 { set sqlite_like_count } 0 do_test like-3.23 { set sqlite_like_count 0 db eval {PRAGMA case_sensitive_like=off;} queryplan { SELECT x FROM t1 WHERE x GLOB 'a[bc]d' ORDER BY 1; } } {abd acd nosort t1 i1} do_test like-3.24 { set sqlite_like_count } 6 # GLOB optimization when there is no wildcard. Ticket [e090183531fc2747] # do_test like-3.25 { queryplan { SELECT x FROM t1 WHERE x GLOB 'a' ORDER BY 1; } } {a nosort t1 i1} do_test like-3.26 { queryplan { SELECT x FROM t1 WHERE x GLOB 'abcd' ORDER BY 1; } } {abcd nosort t1 i1} do_test like-3.27 { queryplan { SELECT x FROM t1 WHERE x GLOB 'abcde' ORDER BY 1; } } {nosort t1 i1} # No optimization if the LHS of the LIKE is not a column name or # if the RHS is not a string. # do_test like-4.1 { execsql {PRAGMA case_sensitive_like=on} set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1 } } {abc abcd nosort t1 i1} do_test like-4.2 { set sqlite_like_count } 0 do_test like-4.3 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE +x LIKE 'abc%' ORDER BY 1 } } {abc abcd nosort t1 i1} do_test like-4.4 { set sqlite_like_count } 12 do_test like-4.5 { set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE ('ab' || 'c%') ORDER BY 1 } } {abc abcd nosort t1 i1} do_test like-4.6 { set sqlite_like_count } 12 # Collating sequences on the index disable the LIKE optimization. # Or if the NOCASE collating sequence is used, the LIKE optimization # is enabled when case_sensitive_like is OFF. # do_test like-5.1 { execsql {PRAGMA case_sensitive_like=off} set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1 } } {ABC {ABC abc xyz} abc abcd nosort t1 i1} do_test like-5.2 { set sqlite_like_count } 12 do_test like-5.3 { execsql { CREATE TABLE t2(x TEXT COLLATE NOCASE); INSERT INTO t2 SELECT * FROM t1 ORDER BY rowid; CREATE INDEX i2 ON t2(x COLLATE NOCASE); } set sqlite_like_count 0 queryplan { SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1 } } {abc ABC {ABC abc xyz} abcd nosort t2 i2} do_test like-5.4 { set sqlite_like_count } 0 do_test like-5.5 { execsql { PRAGMA case_sensitive_like=on; } set sqlite_like_count 0 queryplan { SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1 } } {abc abcd nosort t2 i2} do_test like-5.6 { set sqlite_like_count } 12 do_test like-5.7 { execsql { PRAGMA case_sensitive_like=off; } set sqlite_like_count 0 queryplan { SELECT x FROM t2 WHERE x GLOB 'abc*' ORDER BY 1 } } {abc abcd nosort t2 i2} do_test like-5.8 { set sqlite_like_count } 12 do_test like-5.11 { execsql {PRAGMA case_sensitive_like=off} set sqlite_like_count 0 queryplan { SELECT x FROM t1 WHERE x LIKE 'ABC%' ORDER BY 1 } } {ABC {ABC abc xyz} abc abcd nosort t1 i1} do_test like-5.12 { set sqlite_like_count } 12 do_test like-5.13 { set sqlite_like_count 0 queryplan { SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1 } } {abc ABC {ABC abc xyz} abcd nosort t2 i2} do_test like-5.14 { set sqlite_like_count } 0 do_test like-5.15 { execsql { PRAGMA case_sensitive_like=on; } set sqlite_like_count 0 queryplan { SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1 } } {ABC {ABC abc xyz} nosort t2 i2} do_test like-5.16 { set sqlite_like_count } 12 do_test like-5.17 { execsql { PRAGMA case_sensitive_like=off; } set sqlite_like_count 0 queryplan { SELECT x FROM t2 WHERE x GLOB 'ABC*' ORDER BY 1 } } {ABC {ABC abc xyz} nosort t2 i2} do_test like-5.18 { set sqlite_like_count } 12 # Boundary case. The prefix for a LIKE comparison is rounded up # when constructing the comparison. Example: "ab" becomes "ac". # In other words, the last character is increased by one. |
︙ | ︙ | |||
501 502 503 504 505 506 507 | INSERT INTO t2 VALUES('zZ-lower-upper'); INSERT INTO t2 VALUES('Zz-upper-lower'); INSERT INTO t2 VALUES('zz-lower-lower'); } queryplan { SELECT x FROM t2 WHERE x LIKE 'zz%'; } | | | | | | | | | | 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 | INSERT INTO t2 VALUES('zZ-lower-upper'); INSERT INTO t2 VALUES('Zz-upper-lower'); INSERT INTO t2 VALUES('zz-lower-lower'); } queryplan { SELECT x FROM t2 WHERE x LIKE 'zz%'; } } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2} do_test like-5.22 { queryplan { SELECT x FROM t2 WHERE x LIKE 'zZ%'; } } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2} do_test like-5.23 { queryplan { SELECT x FROM t2 WHERE x LIKE 'Zz%'; } } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2} do_test like-5.24 { queryplan { SELECT x FROM t2 WHERE x LIKE 'ZZ%'; } } {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort t2 i2} do_test like-5.25 { db eval { PRAGMA case_sensitive_like=on; CREATE TABLE t3(x TEXT); CREATE INDEX i3 ON t3(x); INSERT INTO t3 VALUES('ZZ-upper-upper'); INSERT INTO t3 VALUES('zZ-lower-upper'); INSERT INTO t3 VALUES('Zz-upper-lower'); INSERT INTO t3 VALUES('zz-lower-lower'); } queryplan { SELECT x FROM t3 WHERE x LIKE 'zz%'; } } {zz-lower-lower nosort t3 i3} do_test like-5.26 { queryplan { SELECT x FROM t3 WHERE x LIKE 'zZ%'; } } {zZ-lower-upper nosort t3 i3} do_test like-5.27 { queryplan { SELECT x FROM t3 WHERE x LIKE 'Zz%'; } } {Zz-upper-lower nosort t3 i3} do_test like-5.28 { queryplan { SELECT x FROM t3 WHERE x LIKE 'ZZ%'; } } {ZZ-upper-upper nosort t3 i3} # ticket #2407 # # Make sure the LIKE prefix optimization does not strip off leading # characters of the like pattern that happen to be quote characters. # |
︙ | ︙ | |||
658 659 660 661 662 663 664 | }] } {0 {x hello}} ifcapable explain { do_test like-9.4.3 { set res [sqlite4_exec_hex db { EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%ff%25' }] | | | | 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 | }] } {0 {x hello}} ifcapable explain { do_test like-9.4.3 { set res [sqlite4_exec_hex db { EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%ff%25' }] regexp {SCAN TABLE t2} $res } {1} } do_test like-9.5.1 { set res [sqlite4_exec_hex db { SELECT x FROM t2 WHERE x LIKE '%fe%25' }] } {0 {}} ifcapable explain { |
︙ | ︙ | |||
730 731 732 733 734 735 736 | SELECT a FROM t10 WHERE e LIKE '12%' ORDER BY +a; } } {12 123 scan 5 like 6} do_test like-10.5 { count { SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a; } | | | 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 | SELECT a FROM t10 WHERE e LIKE '12%' ORDER BY +a; } } {12 123 scan 5 like 6} do_test like-10.5 { count { SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a; } } {12 123 scan 2 like 0} do_test like-10.6 { count { SELECT a FROM t10 WHERE a LIKE '12%' ORDER BY +a; } } {12 123 scan 5 like 6} do_test like-10.10 { execsql { |
︙ | ︙ | |||
771 772 773 774 775 776 777 | SELECT a FROM t10b WHERE e GLOB '12*' ORDER BY +a; } } {12 123 scan 5 like 6} do_test like-10.14 { count { SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a; } | | | 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 | SELECT a FROM t10b WHERE e GLOB '12*' ORDER BY +a; } } {12 123 scan 5 like 6} do_test like-10.14 { count { SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a; } } {12 123 scan 2 like 0} do_test like-10.15 { count { SELECT a FROM t10b WHERE a GLOB '12*' ORDER BY +a; } } {12 123 scan 5 like 6} } |
︙ | ︙ | |||
805 806 807 808 809 810 811 812 | INSERT INTO t11 VALUES(10, 'yz','yz'); INSERT INTO t11 VALUES(11, 'X','X'); INSERT INTO t11 VALUES(12, 'YZ','YZ'); SELECT count(*) FROM t11; } } {12} do_test like-11.1 { queryplan { | > < > < | > > | > < | > > | > < | > < | > < | | > > | | | 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 | INSERT INTO t11 VALUES(10, 'yz','yz'); INSERT INTO t11 VALUES(11, 'X','X'); INSERT INTO t11 VALUES(12, 'YZ','YZ'); SELECT count(*) FROM t11; } } {12} do_test like-11.1 { db eval {PRAGMA case_sensitive_like=OFF;} queryplan { SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a; } } {abc abcd ABC ABCD nosort t11 *} do_test like-11.2 { db eval {PRAGMA case_sensitive_like=ON;} queryplan { SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a; } } {abc abcd nosort t11 *} do_test like-11.3 { db eval { PRAGMA case_sensitive_like=OFF; CREATE INDEX t11b ON t11(b); } queryplan { SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; } } {abc abcd ABC ABCD sort t11 t11b} do_test like-11.4 { db eval {PRAGMA case_sensitive_like=ON;} queryplan { SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a; } } {abc abcd nosort t11 *} do_test like-11.5 { db eval { PRAGMA case_sensitive_like=OFF; DROP INDEX t11b; CREATE INDEX t11bnc ON t11(b COLLATE nocase); } queryplan { SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; } } {abc abcd ABC ABCD sort t11 t11bnc} do_test like-11.6 { db eval {CREATE INDEX t11bb ON t11(b COLLATE binary);} queryplan { SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; } } {abc abcd ABC ABCD sort t11 t11bnc} do_test like-11.7 { db eval {PRAGMA case_sensitive_like=ON;} queryplan { SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a; } } {abc abcd sort t11 t11bb} do_test like-11.8 { db eval {PRAGMA case_sensitive_like=OFF;} queryplan { SELECT b FROM t11 WHERE b GLOB 'abc*' ORDER BY +a; } } {abc abcd sort t11 t11bb} do_test like-11.9 { db eval { CREATE INDEX t11cnc ON t11(c COLLATE nocase); CREATE INDEX t11cb ON t11(c COLLATE binary); } queryplan { SELECT c FROM t11 WHERE c LIKE 'abc%' ORDER BY +a; } } {abc abcd ABC ABCD sort t11 t11cnc} do_test like-11.10 { queryplan { SELECT c FROM t11 WHERE c GLOB 'abc*' ORDER BY +a; } } {abc abcd sort t11 t11cb} finish_test |
Changes to test/permutations.test.
︙ | ︙ | |||
186 187 188 189 190 191 192 | in.test in2.test in3.test in4.test index.test index2.test index3.test index4.test insert.test insert2.test insert3.test insert5.test join.test join2.test join3.test join4.test join5.test join6.test keyword1.test laststmtchanges.test limit.test | | | 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | in.test in2.test in3.test in4.test index.test index2.test index3.test index4.test insert.test insert2.test insert3.test insert5.test join.test join2.test join3.test join4.test join5.test join6.test keyword1.test laststmtchanges.test limit.test like.test like2.test main.test manydb.test misc5.test misc6.test misuse.test notnull.test null.test num.test num2.test |
︙ | ︙ |