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| 1 # 2010 September 20 | |
| 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 # | |
| 12 # This file implements tests to verify that the "testable statements" in | |
| 13 # the lang_update.html document are correct. | |
| 14 # | |
| 15 set testdir [file dirname $argv0] | |
| 16 source $testdir/tester.tcl | |
| 17 | |
| 18 #-------------------- | |
| 19 # Test organization: | |
| 20 # | |
| 21 # e_update-1.*: Test statements describing the workings of UPDATE statements. | |
| 22 # | |
| 23 # e_update-2.*: Test the restrictions on the UPDATE statement syntax that | |
| 24 # can be used within triggers. | |
| 25 # | |
| 26 # e_update-3.*: Test the special LIMIT/OFFSET and ORDER BY clauses that can | |
| 27 # be used with UPDATE when SQLite is compiled with | |
| 28 # SQLITE_ENABLE_UPDATE_DELETE_LIMIT. | |
| 29 # | |
| 30 | |
| 31 forcedelete test.db2 | |
| 32 | |
| 33 do_execsql_test e_update-0.0 { | |
| 34 ATTACH 'test.db2' AS aux; | |
| 35 CREATE TABLE t1(a, b); | |
| 36 CREATE TABLE t2(a, b, c); | |
| 37 CREATE TABLE t3(a, b UNIQUE); | |
| 38 CREATE TABLE t6(x, y); | |
| 39 CREATE INDEX i1 ON t1(a); | |
| 40 | |
| 41 CREATE TEMP TABLE t4(x, y); | |
| 42 CREATE TEMP TABLE t6(x, y); | |
| 43 | |
| 44 CREATE TABLE aux.t1(a, b); | |
| 45 CREATE TABLE aux.t5(a, b); | |
| 46 } {} | |
| 47 | |
| 48 proc do_update_tests {args} { | |
| 49 uplevel do_select_tests $args | |
| 50 } | |
| 51 | |
| 52 # -- syntax diagram update-stmt | |
| 53 # | |
| 54 do_update_tests e_update-0 { | |
| 55 1 "UPDATE t1 SET a=10" {} | |
| 56 2 "UPDATE t1 SET a=10, b=5" {} | |
| 57 3 "UPDATE t1 SET a=10 WHERE b=5" {} | |
| 58 4 "UPDATE t1 SET b=5,a=10 WHERE 1" {} | |
| 59 5 "UPDATE main.t1 SET a=10" {} | |
| 60 6 "UPDATE main.t1 SET a=10, b=5" {} | |
| 61 7 "UPDATE main.t1 SET a=10 WHERE b=5" {} | |
| 62 9 "UPDATE OR ROLLBACK t1 SET a=10" {} | |
| 63 10 "UPDATE OR ROLLBACK t1 SET a=10, b=5" {} | |
| 64 11 "UPDATE OR ROLLBACK t1 SET a=10 WHERE b=5" {} | |
| 65 12 "UPDATE OR ROLLBACK t1 SET b=5,a=10 WHERE 1" {} | |
| 66 13 "UPDATE OR ROLLBACK main.t1 SET a=10" {} | |
| 67 14 "UPDATE OR ROLLBACK main.t1 SET a=10, b=5" {} | |
| 68 15 "UPDATE OR ROLLBACK main.t1 SET a=10 WHERE b=5" {} | |
| 69 16 "UPDATE OR ROLLBACK main.t1 SET b=5,a=10 WHERE 1" {} | |
| 70 17 "UPDATE OR ABORT t1 SET a=10" {} | |
| 71 18 "UPDATE OR ABORT t1 SET a=10, b=5" {} | |
| 72 19 "UPDATE OR ABORT t1 SET a=10 WHERE b=5" {} | |
| 73 20 "UPDATE OR ABORT t1 SET b=5,a=10 WHERE 1" {} | |
| 74 21 "UPDATE OR ABORT main.t1 SET a=10" {} | |
| 75 22 "UPDATE OR ABORT main.t1 SET a=10, b=5" {} | |
| 76 23 "UPDATE OR ABORT main.t1 SET a=10 WHERE b=5" {} | |
| 77 24 "UPDATE OR ABORT main.t1 SET b=5,a=10 WHERE 1" {} | |
| 78 25 "UPDATE OR REPLACE t1 SET a=10" {} | |
| 79 26 "UPDATE OR REPLACE t1 SET a=10, b=5" {} | |
| 80 27 "UPDATE OR REPLACE t1 SET a=10 WHERE b=5" {} | |
| 81 28 "UPDATE OR REPLACE t1 SET b=5,a=10 WHERE 1" {} | |
| 82 29 "UPDATE OR REPLACE main.t1 SET a=10" {} | |
| 83 30 "UPDATE OR REPLACE main.t1 SET a=10, b=5" {} | |
| 84 31 "UPDATE OR REPLACE main.t1 SET a=10 WHERE b=5" {} | |
| 85 32 "UPDATE OR REPLACE main.t1 SET b=5,a=10 WHERE 1" {} | |
| 86 33 "UPDATE OR FAIL t1 SET a=10" {} | |
| 87 34 "UPDATE OR FAIL t1 SET a=10, b=5" {} | |
| 88 35 "UPDATE OR FAIL t1 SET a=10 WHERE b=5" {} | |
| 89 36 "UPDATE OR FAIL t1 SET b=5,a=10 WHERE 1" {} | |
| 90 37 "UPDATE OR FAIL main.t1 SET a=10" {} | |
| 91 38 "UPDATE OR FAIL main.t1 SET a=10, b=5" {} | |
| 92 39 "UPDATE OR FAIL main.t1 SET a=10 WHERE b=5" {} | |
| 93 40 "UPDATE OR FAIL main.t1 SET b=5,a=10 WHERE 1" {} | |
| 94 41 "UPDATE OR IGNORE t1 SET a=10" {} | |
| 95 42 "UPDATE OR IGNORE t1 SET a=10, b=5" {} | |
| 96 43 "UPDATE OR IGNORE t1 SET a=10 WHERE b=5" {} | |
| 97 44 "UPDATE OR IGNORE t1 SET b=5,a=10 WHERE 1" {} | |
| 98 45 "UPDATE OR IGNORE main.t1 SET a=10" {} | |
| 99 46 "UPDATE OR IGNORE main.t1 SET a=10, b=5" {} | |
| 100 47 "UPDATE OR IGNORE main.t1 SET a=10 WHERE b=5" {} | |
| 101 48 "UPDATE OR IGNORE main.t1 SET b=5,a=10 WHERE 1" {} | |
| 102 } | |
| 103 | |
| 104 # EVIDENCE-OF: R-38515-45264 An UPDATE statement is used to modify a | |
| 105 # subset of the values stored in zero or more rows of the database table | |
| 106 # identified by the qualified-table-name specified as part of the UPDATE | |
| 107 # statement. | |
| 108 # | |
| 109 # Test cases e_update-1.1.1.* test the "identified by the | |
| 110 # qualified-table-name" part of the statement above. Tests | |
| 111 # e_update-1.1.2.* show that the "zero or more rows" part is | |
| 112 # accurate. | |
| 113 # | |
| 114 do_execsql_test e_update-1.1.0 { | |
| 115 INSERT INTO main.t1 VALUES(1, 'i'); | |
| 116 INSERT INTO main.t1 VALUES(2, 'ii'); | |
| 117 INSERT INTO main.t1 VALUES(3, 'iii'); | |
| 118 | |
| 119 INSERT INTO aux.t1 VALUES(1, 'I'); | |
| 120 INSERT INTO aux.t1 VALUES(2, 'II'); | |
| 121 INSERT INTO aux.t1 VALUES(3, 'III'); | |
| 122 } {} | |
| 123 do_update_tests e_update-1.1 { | |
| 124 1.1 "UPDATE t1 SET a = a+1; SELECT * FROM t1" {2 i 3 ii 4 iii} | |
| 125 1.2 "UPDATE main.t1 SET a = a+1; SELECT * FROM main.t1" {3 i 4 ii 5 iii} | |
| 126 1.3 "UPDATE aux.t1 SET a = a+1; SELECT * FROM aux.t1" {2 I 3 II 4 III} | |
| 127 | |
| 128 2.1 "UPDATE t1 SET a = a+1 WHERE a = 1; SELECT * FROM t1" {3 i 4 ii 5 iii} | |
| 129 2.2 "UPDATE t1 SET a = a+1 WHERE a = 4; SELECT * FROM t1" {3 i 5 ii 5 iii} | |
| 130 } | |
| 131 | |
| 132 # EVIDENCE-OF: R-55869-30521 If the UPDATE statement does not have a | |
| 133 # WHERE clause, all rows in the table are modified by the UPDATE. | |
| 134 # | |
| 135 do_execsql_test e_update-1.2.0 { | |
| 136 DELETE FROM main.t1; | |
| 137 INSERT INTO main.t1 VALUES(1, 'i'); | |
| 138 INSERT INTO main.t1 VALUES(2, 'ii'); | |
| 139 INSERT INTO main.t1 VALUES(3, 'iii'); | |
| 140 } {} | |
| 141 do_update_tests e_update-1.2 { | |
| 142 1 "UPDATE t1 SET b = 'roman' ; SELECT * FROM t1" | |
| 143 {1 roman 2 roman 3 roman} | |
| 144 | |
| 145 2 "UPDATE t1 SET a = 'greek' ; SELECT * FROM t1" | |
| 146 {greek roman greek roman greek roman} | |
| 147 } | |
| 148 | |
| 149 # EVIDENCE-OF: R-42117-40023 Otherwise, the UPDATE affects only those | |
| 150 # rows for which the result of evaluating the WHERE clause expression as | |
| 151 # a boolean expression is true. | |
| 152 # | |
| 153 do_execsql_test e_update-1.3.0 { | |
| 154 DELETE FROM main.t1; | |
| 155 INSERT INTO main.t1 VALUES(NULL, ''); | |
| 156 INSERT INTO main.t1 VALUES(1, 'i'); | |
| 157 INSERT INTO main.t1 VALUES(2, 'ii'); | |
| 158 INSERT INTO main.t1 VALUES(3, 'iii'); | |
| 159 } {} | |
| 160 do_update_tests e_update-1.3 { | |
| 161 1 "UPDATE t1 SET b = 'roman' WHERE a<2 ; SELECT * FROM t1" | |
| 162 {{} {} 1 roman 2 ii 3 iii} | |
| 163 | |
| 164 2 "UPDATE t1 SET b = 'egyptian' WHERE (a-3)/10.0 ; SELECT * FROM t1" | |
| 165 {{} {} 1 egyptian 2 egyptian 3 iii} | |
| 166 | |
| 167 3 "UPDATE t1 SET b = 'macedonian' WHERE a; SELECT * FROM t1" | |
| 168 {{} {} 1 macedonian 2 macedonian 3 macedonian} | |
| 169 | |
| 170 4 "UPDATE t1 SET b = 'lithuanian' WHERE a IS NULL; SELECT * FROM t1" | |
| 171 {{} lithuanian 1 macedonian 2 macedonian 3 macedonian} | |
| 172 } | |
| 173 | |
| 174 # EVIDENCE-OF: R-58129-20729 It is not an error if the WHERE clause does | |
| 175 # not evaluate to true for any row in the table - this just means that | |
| 176 # the UPDATE statement affects zero rows. | |
| 177 # | |
| 178 do_execsql_test e_update-1.4.0 { | |
| 179 DELETE FROM main.t1; | |
| 180 INSERT INTO main.t1 VALUES(NULL, ''); | |
| 181 INSERT INTO main.t1 VALUES(1, 'i'); | |
| 182 INSERT INTO main.t1 VALUES(2, 'ii'); | |
| 183 INSERT INTO main.t1 VALUES(3, 'iii'); | |
| 184 } {} | |
| 185 do_update_tests e_update-1.4 -query { | |
| 186 SELECT * FROM t1 | |
| 187 } { | |
| 188 1 "UPDATE t1 SET b = 'burmese' WHERE a=5" {{} {} 1 i 2 ii 3 iii} | |
| 189 | |
| 190 2 "UPDATE t1 SET b = 'burmese' WHERE length(b)<1 AND a IS NOT NULL" | |
| 191 {{} {} 1 i 2 ii 3 iii} | |
| 192 | |
| 193 3 "UPDATE t1 SET b = 'burmese' WHERE 0" {{} {} 1 i 2 ii 3 iii} | |
| 194 | |
| 195 4 "UPDATE t1 SET b = 'burmese' WHERE (SELECT a FROM t1 WHERE rowid=1)" | |
| 196 {{} {} 1 i 2 ii 3 iii} | |
| 197 } | |
| 198 | |
| 199 # EVIDENCE-OF: R-40598-36595 For each affected row, the named columns | |
| 200 # are set to the values found by evaluating the corresponding scalar | |
| 201 # expressions. | |
| 202 # | |
| 203 # EVIDENCE-OF: R-40472-60438 Columns that do not appear in the list of | |
| 204 # assignments are left unmodified. | |
| 205 # | |
| 206 do_execsql_test e_update-1.5.0 { | |
| 207 INSERT INTO t2(rowid, a, b, c) VALUES(1, 3, 1, 4); | |
| 208 INSERT INTO t2(rowid, a, b, c) VALUES(2, 1, 5, 9); | |
| 209 INSERT INTO t2(rowid, a, b, c) VALUES(3, 2, 6, 5); | |
| 210 } {} | |
| 211 do_update_tests e_update-1.5 -query { | |
| 212 SELECT * FROM t2 | |
| 213 } { | |
| 214 1 "UPDATE t2 SET c = 1+1 WHERE a=2" | |
| 215 {3 1 4 1 5 9 2 6 2} | |
| 216 | |
| 217 2 "UPDATE t2 SET b = 4/2, c=CAST((0.4*5) AS INTEGER) WHERE a<3" | |
| 218 {3 1 4 1 2 2 2 2 2} | |
| 219 | |
| 220 3 "UPDATE t2 SET a = 1" | |
| 221 {1 1 4 1 2 2 1 2 2} | |
| 222 | |
| 223 4 "UPDATE t2 SET b = (SELECT count(*)+2 FROM t2), c = 24/3+1 WHERE rowid=2" | |
| 224 {1 1 4 1 5 9 1 2 2} | |
| 225 | |
| 226 5 "UPDATE t2 SET a = 3 WHERE c = 4" | |
| 227 {3 1 4 1 5 9 1 2 2} | |
| 228 | |
| 229 6 "UPDATE t2 SET a = b WHERE rowid>2" | |
| 230 {3 1 4 1 5 9 2 2 2} | |
| 231 | |
| 232 6 "UPDATE t2 SET b=6, c=5 WHERE a=b AND b=c" | |
| 233 {3 1 4 1 5 9 2 6 5} | |
| 234 } | |
| 235 | |
| 236 # EVIDENCE-OF: R-34751-18293 If a single column-name appears more than | |
| 237 # once in the list of assignment expressions, all but the rightmost | |
| 238 # occurrence is ignored. | |
| 239 # | |
| 240 do_update_tests e_update-1.6 -query { | |
| 241 SELECT * FROM t2 | |
| 242 } { | |
| 243 1 "UPDATE t2 SET c=5, c=6, c=7 WHERE rowid=1" {3 1 7 1 5 9 2 6 5} | |
| 244 2 "UPDATE t2 SET c=7, c=6, c=5 WHERE rowid=1" {3 1 5 1 5 9 2 6 5} | |
| 245 3 "UPDATE t2 SET c=5, b=6, c=7 WHERE rowid=1" {3 6 7 1 5 9 2 6 5} | |
| 246 } | |
| 247 | |
| 248 # EVIDENCE-OF: R-36239-04077 The scalar expressions may refer to columns | |
| 249 # of the row being updated. | |
| 250 # | |
| 251 # EVIDENCE-OF: R-04558-24451 In this case all scalar expressions are | |
| 252 # evaluated before any assignments are made. | |
| 253 # | |
| 254 do_execsql_test e_update-1.7.0 { | |
| 255 DELETE FROM t2; | |
| 256 INSERT INTO t2(rowid, a, b, c) VALUES(1, 3, 1, 4); | |
| 257 INSERT INTO t2(rowid, a, b, c) VALUES(2, 1, 5, 9); | |
| 258 INSERT INTO t2(rowid, a, b, c) VALUES(3, 2, 6, 5); | |
| 259 } {} | |
| 260 do_update_tests e_update-1.7 -query { | |
| 261 SELECT * FROM t2 | |
| 262 } { | |
| 263 1 "UPDATE t2 SET a=b+c" {5 1 4 14 5 9 11 6 5} | |
| 264 2 "UPDATE t2 SET a=b, b=a" {1 5 4 5 14 9 6 11 5} | |
| 265 3 "UPDATE t2 SET a=c||c, c=NULL" {44 5 {} 99 14 {} 55 11 {}} | |
| 266 } | |
| 267 | |
| 268 # EVIDENCE-OF: R-12619-24112 The optional conflict-clause allows the | |
| 269 # user to nominate a specific constraint conflict resolution algorithm | |
| 270 # to use during this one UPDATE command. | |
| 271 # | |
| 272 do_execsql_test e_update-1.8.0 { | |
| 273 DELETE FROM t3; | |
| 274 INSERT INTO t3 VALUES(1, 'one'); | |
| 275 INSERT INTO t3 VALUES(2, 'two'); | |
| 276 INSERT INTO t3 VALUES(3, 'three'); | |
| 277 INSERT INTO t3 VALUES(4, 'four'); | |
| 278 } {} | |
| 279 foreach {tn sql error ac data } { | |
| 280 1 "UPDATE t3 SET b='one' WHERE a=3" | |
| 281 {UNIQUE constraint failed: t3.b} 1 {1 one 2 two 3 three 4 four} | |
| 282 | |
| 283 2 "UPDATE OR REPLACE t3 SET b='one' WHERE a=3" | |
| 284 {} 1 {2 two 3 one 4 four} | |
| 285 | |
| 286 3 "UPDATE OR FAIL t3 SET b='three'" | |
| 287 {UNIQUE constraint failed: t3.b} 1 {2 three 3 one 4 four} | |
| 288 | |
| 289 4 "UPDATE OR IGNORE t3 SET b='three' WHERE a=3" | |
| 290 {} 1 {2 three 3 one 4 four} | |
| 291 | |
| 292 5 "UPDATE OR ABORT t3 SET b='three' WHERE a=3" | |
| 293 {UNIQUE constraint failed: t3.b} 1 {2 three 3 one 4 four} | |
| 294 | |
| 295 6 "BEGIN" {} 0 {2 three 3 one 4 four} | |
| 296 | |
| 297 7 "UPDATE t3 SET b='three' WHERE a=3" | |
| 298 {UNIQUE constraint failed: t3.b} 0 {2 three 3 one 4 four} | |
| 299 | |
| 300 8 "UPDATE OR ABORT t3 SET b='three' WHERE a=3" | |
| 301 {UNIQUE constraint failed: t3.b} 0 {2 three 3 one 4 four} | |
| 302 | |
| 303 9 "UPDATE OR FAIL t3 SET b='two'" | |
| 304 {UNIQUE constraint failed: t3.b} 0 {2 two 3 one 4 four} | |
| 305 | |
| 306 10 "UPDATE OR IGNORE t3 SET b='four' WHERE a=3" | |
| 307 {} 0 {2 two 3 one 4 four} | |
| 308 | |
| 309 11 "UPDATE OR REPLACE t3 SET b='four' WHERE a=3" | |
| 310 {} 0 {2 two 3 four} | |
| 311 | |
| 312 12 "UPDATE OR ROLLBACK t3 SET b='four'" | |
| 313 {UNIQUE constraint failed: t3.b} 1 {2 three 3 one 4 four} | |
| 314 } { | |
| 315 do_catchsql_test e_update-1.8.$tn.1 $sql [list [expr {$error!=""}] $error] | |
| 316 do_execsql_test e_update-1.8.$tn.2 {SELECT * FROM t3} [list {*}$data] | |
| 317 do_test e_update-1.8.$tn.3 {sqlite3_get_autocommit db} $ac | |
| 318 } | |
| 319 | |
| 320 | |
| 321 | |
| 322 # EVIDENCE-OF: R-12123-54095 The table-name specified as part of an | |
| 323 # UPDATE statement within a trigger body must be unqualified. | |
| 324 # | |
| 325 # EVIDENCE-OF: R-09690-36749 In other words, the database-name. prefix | |
| 326 # on the table name of the UPDATE is not allowed within triggers. | |
| 327 # | |
| 328 do_update_tests e_update-2.1 -error { | |
| 329 qualified table names are not allowed on INSERT, UPDATE, and DELETE statements
within triggers | |
| 330 } { | |
| 331 1 { | |
| 332 CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN | |
| 333 UPDATE main.t2 SET a=1, b=2, c=3; | |
| 334 END; | |
| 335 } {} | |
| 336 | |
| 337 2 { | |
| 338 CREATE TRIGGER tr1 BEFORE UPDATE ON t2 BEGIN | |
| 339 UPDATE aux.t1 SET a=1, b=2; | |
| 340 END; | |
| 341 } {} | |
| 342 | |
| 343 3 { | |
| 344 CREATE TRIGGER tr1 AFTER DELETE ON t4 BEGIN | |
| 345 UPDATE main.t1 SET a=1, b=2; | |
| 346 END; | |
| 347 } {} | |
| 348 } | |
| 349 | |
| 350 # EVIDENCE-OF: R-06085-13761 Unless the table to which the trigger is | |
| 351 # attached is in the TEMP database, the table being updated by the | |
| 352 # trigger program must reside in the same database as it. | |
| 353 # | |
| 354 do_update_tests e_update-2.2 -error { | |
| 355 no such table: %s | |
| 356 } { | |
| 357 1 { | |
| 358 CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN | |
| 359 UPDATE t4 SET x=x+1; | |
| 360 END; | |
| 361 INSERT INTO t1 VALUES(1, 2); | |
| 362 } "main.t4" | |
| 363 | |
| 364 2 { | |
| 365 CREATE TRIGGER aux.tr1 AFTER INSERT ON t5 BEGIN | |
| 366 UPDATE t4 SET x=x+1; | |
| 367 END; | |
| 368 INSERT INTO t5 VALUES(1, 2); | |
| 369 } "aux.t4" | |
| 370 } | |
| 371 do_execsql_test e_update-2.2.X { | |
| 372 DROP TRIGGER tr1; | |
| 373 DROP TRIGGER aux.tr1; | |
| 374 } {} | |
| 375 | |
| 376 # EVIDENCE-OF: R-29512-54644 If the table to which the trigger is | |
| 377 # attached is in the TEMP database, then the unqualified name of the | |
| 378 # table being updated is resolved in the same way as it is for a | |
| 379 # top-level statement (by searching first the TEMP database, then the | |
| 380 # main database, then any other databases in the order they were | |
| 381 # attached). | |
| 382 # | |
| 383 do_execsql_test e_update-2.3.0 { | |
| 384 SELECT 'main', tbl_name FROM main.sqlite_master WHERE type = 'table'; | |
| 385 SELECT 'temp', tbl_name FROM sqlite_temp_master WHERE type = 'table'; | |
| 386 SELECT 'aux', tbl_name FROM aux.sqlite_master WHERE type = 'table'; | |
| 387 } [list {*}{ | |
| 388 main t1 | |
| 389 main t2 | |
| 390 main t3 | |
| 391 main t6 | |
| 392 temp t4 | |
| 393 temp t6 | |
| 394 aux t1 | |
| 395 aux t5 | |
| 396 }] | |
| 397 do_execsql_test e_update-2.3.1 { | |
| 398 DELETE FROM main.t6; | |
| 399 DELETE FROM temp.t6; | |
| 400 INSERT INTO main.t6 VALUES(1, 2); | |
| 401 INSERT INTO temp.t6 VALUES(1, 2); | |
| 402 | |
| 403 CREATE TRIGGER temp.tr1 AFTER INSERT ON t4 BEGIN | |
| 404 UPDATE t6 SET x=x+1; | |
| 405 END; | |
| 406 | |
| 407 INSERT INTO t4 VALUES(1, 2); | |
| 408 SELECT * FROM main.t6; | |
| 409 SELECT * FROM temp.t6; | |
| 410 } {1 2 2 2} | |
| 411 do_execsql_test e_update-2.3.2 { | |
| 412 DELETE FROM main.t1; | |
| 413 DELETE FROM aux.t1; | |
| 414 INSERT INTO main.t1 VALUES(1, 2); | |
| 415 INSERT INTO aux.t1 VALUES(1, 2); | |
| 416 | |
| 417 CREATE TRIGGER temp.tr2 AFTER DELETE ON t4 BEGIN | |
| 418 UPDATE t1 SET a=a+1; | |
| 419 END; | |
| 420 | |
| 421 DELETE FROM t4; | |
| 422 SELECT * FROM main.t1; | |
| 423 SELECT * FROM aux.t1; | |
| 424 } {2 2 1 2} | |
| 425 do_execsql_test e_update-2.3.3 { | |
| 426 DELETE FROM aux.t5; | |
| 427 INSERT INTO aux.t5 VALUES(1, 2); | |
| 428 | |
| 429 INSERT INTO t4 VALUES('x', 'y'); | |
| 430 CREATE TRIGGER temp.tr3 AFTER UPDATE ON t4 BEGIN | |
| 431 UPDATE t5 SET a=a+1; | |
| 432 END; | |
| 433 | |
| 434 UPDATE t4 SET x=10; | |
| 435 SELECT * FROM aux.t5; | |
| 436 } {2 2} | |
| 437 | |
| 438 # EVIDENCE-OF: R-19619-42762 The INDEXED BY and NOT INDEXED clauses are | |
| 439 # not allowed on UPDATE statements within triggers. | |
| 440 # | |
| 441 do_update_tests e_update-2.4 -error { | |
| 442 the %s %s clause is not allowed on UPDATE or DELETE statements within triggers | |
| 443 } { | |
| 444 1 { | |
| 445 CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN | |
| 446 UPDATE t1 INDEXED BY i1 SET a=a+1; | |
| 447 END; | |
| 448 } {INDEXED BY} | |
| 449 | |
| 450 2 { | |
| 451 CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN | |
| 452 UPDATE t1 NOT INDEXED SET a=a+1; | |
| 453 END; | |
| 454 } {NOT INDEXED} | |
| 455 } | |
| 456 | |
| 457 ifcapable update_delete_limit { | |
| 458 | |
| 459 # EVIDENCE-OF: R-57359-59558 The LIMIT and ORDER BY clauses for UPDATE | |
| 460 # are unsupported within triggers, regardless of the compilation options | |
| 461 # used to build SQLite. | |
| 462 # | |
| 463 do_update_tests e_update-2.5 -error { | |
| 464 near "%s": syntax error | |
| 465 } { | |
| 466 1 { | |
| 467 CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN | |
| 468 UPDATE t1 SET a=a+1 LIMIT 10; | |
| 469 END; | |
| 470 } {LIMIT} | |
| 471 | |
| 472 2 { | |
| 473 CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN | |
| 474 UPDATE t1 SET a=a+1 ORDER BY a LIMIT 10; | |
| 475 END; | |
| 476 } {ORDER} | |
| 477 | |
| 478 3 { | |
| 479 CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN | |
| 480 UPDATE t1 SET a=a+1 ORDER BY a LIMIT 10 OFFSET 2; | |
| 481 END; | |
| 482 } {ORDER} | |
| 483 | |
| 484 4 { | |
| 485 CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN | |
| 486 UPDATE t1 SET a=a+1 LIMIT 10 OFFSET 2; | |
| 487 END; | |
| 488 } {LIMIT} | |
| 489 } | |
| 490 | |
| 491 # EVIDENCE-OF: R-59581-44104 If SQLite is built with the | |
| 492 # SQLITE_ENABLE_UPDATE_DELETE_LIMIT compile-time option then the syntax | |
| 493 # of the UPDATE statement is extended with optional ORDER BY and LIMIT | |
| 494 # clauses | |
| 495 # | |
| 496 # -- syntax diagram update-stmt-limited | |
| 497 # | |
| 498 do_update_tests e_update-3.0 { | |
| 499 1 "UPDATE t1 SET a=b LIMIT 5" {} | |
| 500 2 "UPDATE t1 SET a=b LIMIT 5-1 OFFSET 2+2" {} | |
| 501 3 "UPDATE t1 SET a=b LIMIT 2+2, 16/4" {} | |
| 502 4 "UPDATE t1 SET a=b ORDER BY a LIMIT 5" {} | |
| 503 5 "UPDATE t1 SET a=b ORDER BY a LIMIT 5-1 OFFSET 2+2" {} | |
| 504 6 "UPDATE t1 SET a=b ORDER BY a LIMIT 2+2, 16/4" {} | |
| 505 7 "UPDATE t1 SET a=b WHERE a>2 LIMIT 5" {} | |
| 506 8 "UPDATE t1 SET a=b WHERE a>2 LIMIT 5-1 OFFSET 2+2" {} | |
| 507 9 "UPDATE t1 SET a=b WHERE a>2 LIMIT 2+2, 16/4" {} | |
| 508 10 "UPDATE t1 SET a=b WHERE a>2 ORDER BY a LIMIT 5" {} | |
| 509 11 "UPDATE t1 SET a=b WHERE a>2 ORDER BY a LIMIT 5-1 OFFSET 2+2" {} | |
| 510 12 "UPDATE t1 SET a=b WHERE a>2 ORDER BY a LIMIT 2+2, 16/4" {} | |
| 511 } | |
| 512 | |
| 513 do_execsql_test e_update-3.1.0 { | |
| 514 CREATE TABLE t7(q, r, s); | |
| 515 INSERT INTO t7 VALUES(1, 'one', 'X'); | |
| 516 INSERT INTO t7 VALUES(2, 'two', 'X'); | |
| 517 INSERT INTO t7 VALUES(3, 'three', 'X'); | |
| 518 INSERT INTO t7 VALUES(4, 'four', 'X'); | |
| 519 INSERT INTO t7 VALUES(5, 'five', 'X'); | |
| 520 INSERT INTO t7 VALUES(6, 'six', 'X'); | |
| 521 INSERT INTO t7 VALUES(7, 'seven', 'X'); | |
| 522 INSERT INTO t7 VALUES(8, 'eight', 'X'); | |
| 523 INSERT INTO t7 VALUES(9, 'nine', 'X'); | |
| 524 INSERT INTO t7 VALUES(10, 'ten', 'X'); | |
| 525 } {} | |
| 526 | |
| 527 # EVIDENCE-OF: R-58862-44169 If an UPDATE statement has a LIMIT clause, | |
| 528 # the maximum number of rows that will be updated is found by evaluating | |
| 529 # the accompanying expression and casting it to an integer value. | |
| 530 # | |
| 531 do_update_tests e_update-3.1 -query { SELECT s FROM t7 } { | |
| 532 1 "UPDATE t7 SET s = q LIMIT 5" {1 2 3 4 5 X X X X X} | |
| 533 2 "UPDATE t7 SET s = r WHERE q>2 LIMIT 4" {1 2 three four five six X X X X} | |
| 534 3 "UPDATE t7 SET s = q LIMIT 0" {1 2 three four five six X X X X} | |
| 535 } | |
| 536 | |
| 537 # EVIDENCE-OF: R-63582-45120 A negative value is interpreted as "no limit". | |
| 538 # | |
| 539 do_update_tests e_update-3.2 -query { SELECT s FROM t7 } { | |
| 540 1 "UPDATE t7 SET s = q LIMIT -1" {1 2 3 4 5 6 7 8 9 10} | |
| 541 2 "UPDATE t7 SET s = r WHERE q>4 LIMIT -1" | |
| 542 {1 2 3 4 five six seven eight nine ten} | |
| 543 3 "UPDATE t7 SET s = 'X' LIMIT -1" {X X X X X X X X X X} | |
| 544 } | |
| 545 | |
| 546 # EVIDENCE-OF: R-18628-11938 If the LIMIT expression evaluates to | |
| 547 # non-negative value N and the UPDATE statement has an ORDER BY clause, | |
| 548 # then all rows that would be updated in the absence of the LIMIT clause | |
| 549 # are sorted according to the ORDER BY and the first N updated. | |
| 550 # | |
| 551 do_update_tests e_update-3.3 -query { SELECT s FROM t7 } { | |
| 552 1 "UPDATE t7 SET s = q ORDER BY r LIMIT 3" {X X X 4 5 X X 8 X X} | |
| 553 2 "UPDATE t7 SET s = r ORDER BY r DESC LIMIT 2" {X two three 4 5 X X 8 X X} | |
| 554 3 "UPDATE t7 SET s = q ORDER BY q DESC LIMIT 5" {X two three 4 5 6 7 8 9 10} | |
| 555 | |
| 556 X "UPDATE t7 SET s = 'X'" {X X X X X X X X X X} | |
| 557 } | |
| 558 | |
| 559 # EVIDENCE-OF: R-30955-38324 If the UPDATE statement also has an OFFSET | |
| 560 # clause, then it is similarly evaluated and cast to an integer value. | |
| 561 # If the OFFSET expression evaluates to a non-negative value M, then the | |
| 562 # first M rows are skipped and the following N rows updated instead. | |
| 563 # | |
| 564 do_update_tests e_update-3.3 -query { SELECT s FROM t7 } { | |
| 565 1 "UPDATE t7 SET s = q ORDER BY q LIMIT 3 OFFSET 2" {X X 3 4 5 X X X X X} | |
| 566 2 "UPDATE t7 SET s = q ORDER BY q DESC LIMIT 2, 3 " {X X 3 4 5 6 7 8 X X} | |
| 567 | |
| 568 X "UPDATE t7 SET s = 'X'" {X X X X X X X X X X} | |
| 569 } | |
| 570 | |
| 571 # EVIDENCE-OF: R-19486-35828 If the UPDATE statement has no ORDER BY | |
| 572 # clause, then all rows that would be updated in the absence of the | |
| 573 # LIMIT clause are assembled in an arbitrary order before applying the | |
| 574 # LIMIT and OFFSET clauses to determine which are actually updated. | |
| 575 # | |
| 576 # In practice, "arbitrary order" is rowid order. This is also tested | |
| 577 # by e_update-3.2.* above. | |
| 578 # | |
| 579 do_update_tests e_update-3.4 -query { SELECT s FROM t7 } { | |
| 580 1 "UPDATE t7 SET s = q LIMIT 4, 2" {X X X X 5 6 X X X X} | |
| 581 2 "UPDATE t7 SET s = q LIMIT 2 OFFSET 7" {X X X X 5 6 X 8 9 X} | |
| 582 } | |
| 583 | |
| 584 # EVIDENCE-OF: R-10927-26133 The ORDER BY clause on an UPDATE statement | |
| 585 # is used only to determine which rows fall within the LIMIT. The order | |
| 586 # in which rows are modified is arbitrary and is not influenced by the | |
| 587 # ORDER BY clause. | |
| 588 # | |
| 589 do_execsql_test e_update-3.5.0 { | |
| 590 CREATE TABLE t8(x); | |
| 591 CREATE TRIGGER tr7 BEFORE UPDATE ON t7 BEGIN | |
| 592 INSERT INTO t8 VALUES(old.q); | |
| 593 END; | |
| 594 } {} | |
| 595 do_update_tests e_update-3.5 -query { SELECT x FROM t8 ; DELETE FROM t8 } { | |
| 596 1 "UPDATE t7 SET s = q ORDER BY r LIMIT -1" {1 2 3 4 5 6 7 8 9 10} | |
| 597 2 "UPDATE t7 SET s = q ORDER BY r ASC LIMIT -1" {1 2 3 4 5 6 7 8 9 10} | |
| 598 3 "UPDATE t7 SET s = q ORDER BY r DESC LIMIT -1" {1 2 3 4 5 6 7 8 9 10} | |
| 599 4 "UPDATE t7 SET s = q ORDER BY q DESC LIMIT 5" {6 7 8 9 10} | |
| 600 } | |
| 601 | |
| 602 | |
| 603 } ;# ifcapable update_delete_limit | |
| 604 | |
| 605 finish_test | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2363173002:
[sqlite] Remove obsolete reference version 3.8.7.4. (Closed)
