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1 # 2007 May 8 | |
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 contains tests to verify that the limits defined in | |
13 # sqlite source file limits.h are enforced. | |
14 # | |
15 # $Id: sqllimits1.test,v 1.33 2009/06/25 01:47:12 drh Exp $ | |
16 | |
17 set testdir [file dirname $argv0] | |
18 source $testdir/tester.tcl | |
19 | |
20 # Verify that the default per-connection limits are the same as | |
21 # the compile-time hard limits. | |
22 # | |
23 sqlite3 db2 :memory: | |
24 do_test sqllimits1-1.1 { | |
25 sqlite3_limit db SQLITE_LIMIT_LENGTH -1 | |
26 } $SQLITE_MAX_LENGTH | |
27 do_test sqllimits1-1.2 { | |
28 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1 | |
29 } $SQLITE_MAX_SQL_LENGTH | |
30 do_test sqllimits1-1.3 { | |
31 sqlite3_limit db SQLITE_LIMIT_COLUMN -1 | |
32 } $SQLITE_MAX_COLUMN | |
33 do_test sqllimits1-1.4 { | |
34 sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1 | |
35 } $SQLITE_MAX_EXPR_DEPTH | |
36 do_test sqllimits1-1.5 { | |
37 sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1 | |
38 } $SQLITE_MAX_COMPOUND_SELECT | |
39 do_test sqllimits1-1.6 { | |
40 sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1 | |
41 } $SQLITE_MAX_VDBE_OP | |
42 do_test sqllimits1-1.7 { | |
43 sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1 | |
44 } $SQLITE_MAX_FUNCTION_ARG | |
45 do_test sqllimits1-1.8 { | |
46 sqlite3_limit db SQLITE_LIMIT_ATTACHED -1 | |
47 } $SQLITE_MAX_ATTACHED | |
48 do_test sqllimits1-1.9 { | |
49 sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1 | |
50 } $SQLITE_MAX_LIKE_PATTERN_LENGTH | |
51 do_test sqllimits1-1.10 { | |
52 sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1 | |
53 } $SQLITE_MAX_VARIABLE_NUMBER | |
54 do_test sqllimits1-1.11 { | |
55 sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH -1 | |
56 } $SQLITE_MAX_TRIGGER_DEPTH | |
57 do_test sqllimits1-1.12 { | |
58 sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS 99999 | |
59 sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS -1 | |
60 } $SQLITE_MAX_WORKER_THREADS | |
61 | |
62 # Limit parameters out of range. | |
63 # | |
64 do_test sqllimits1-1.20 { | |
65 sqlite3_limit db SQLITE_LIMIT_TOOSMALL 123 | |
66 } {-1} | |
67 do_test sqllimits1-1.21 { | |
68 sqlite3_limit db SQLITE_LIMIT_TOOSMALL 123 | |
69 } {-1} | |
70 do_test sqllimits1-1.22 { | |
71 sqlite3_limit db SQLITE_LIMIT_TOOBIG 123 | |
72 } {-1} | |
73 do_test sqllimits1-1.23 { | |
74 sqlite3_limit db SQLITE_LIMIT_TOOBIG 123 | |
75 } {-1} | |
76 | |
77 | |
78 # Decrease all limits by half. Verify that the new limits take. | |
79 # | |
80 if {$SQLITE_MAX_LENGTH>=2} { | |
81 do_test sqllimits1-2.1.1 { | |
82 sqlite3_limit db SQLITE_LIMIT_LENGTH \ | |
83 [expr {$::SQLITE_MAX_LENGTH/2}] | |
84 } $SQLITE_MAX_LENGTH | |
85 do_test sqllimits1-2.1.2 { | |
86 sqlite3_limit db SQLITE_LIMIT_LENGTH -1 | |
87 } [expr {$SQLITE_MAX_LENGTH/2}] | |
88 } | |
89 if {$SQLITE_MAX_SQL_LENGTH>=2} { | |
90 do_test sqllimits1-2.2.1 { | |
91 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH \ | |
92 [expr {$::SQLITE_MAX_SQL_LENGTH/2}] | |
93 } $SQLITE_MAX_SQL_LENGTH | |
94 do_test sqllimits1-2.2.2 { | |
95 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1 | |
96 } [expr {$SQLITE_MAX_SQL_LENGTH/2}] | |
97 } | |
98 if {$SQLITE_MAX_COLUMN>=2} { | |
99 do_test sqllimits1-2.3.1 { | |
100 sqlite3_limit db SQLITE_LIMIT_COLUMN \ | |
101 [expr {$::SQLITE_MAX_COLUMN/2}] | |
102 } $SQLITE_MAX_COLUMN | |
103 do_test sqllimits1-2.3.2 { | |
104 sqlite3_limit db SQLITE_LIMIT_COLUMN -1 | |
105 } [expr {$SQLITE_MAX_COLUMN/2}] | |
106 } | |
107 if {$SQLITE_MAX_EXPR_DEPTH>=2} { | |
108 do_test sqllimits1-2.4.1 { | |
109 sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH \ | |
110 [expr {$::SQLITE_MAX_EXPR_DEPTH/2}] | |
111 } $SQLITE_MAX_EXPR_DEPTH | |
112 do_test sqllimits1-2.4.2 { | |
113 sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1 | |
114 } [expr {$SQLITE_MAX_EXPR_DEPTH/2}] | |
115 } | |
116 if {$SQLITE_MAX_COMPOUND_SELECT>=2} { | |
117 do_test sqllimits1-2.5.1 { | |
118 sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT \ | |
119 [expr {$::SQLITE_MAX_COMPOUND_SELECT/2}] | |
120 } $SQLITE_MAX_COMPOUND_SELECT | |
121 do_test sqllimits1-2.5.2 { | |
122 sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1 | |
123 } [expr {$SQLITE_MAX_COMPOUND_SELECT/2}] | |
124 } | |
125 if {$SQLITE_MAX_VDBE_OP>=2} { | |
126 do_test sqllimits1-2.6.1 { | |
127 sqlite3_limit db SQLITE_LIMIT_VDBE_OP \ | |
128 [expr {$::SQLITE_MAX_VDBE_OP/2}] | |
129 } $SQLITE_MAX_VDBE_OP | |
130 do_test sqllimits1-2.6.2 { | |
131 sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1 | |
132 } [expr {$SQLITE_MAX_VDBE_OP/2}] | |
133 } | |
134 if {$SQLITE_MAX_FUNCTION_ARG>=2} { | |
135 do_test sqllimits1-2.7.1 { | |
136 sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG \ | |
137 [expr {$::SQLITE_MAX_FUNCTION_ARG/2}] | |
138 } $SQLITE_MAX_FUNCTION_ARG | |
139 do_test sqllimits1-2.7.2 { | |
140 sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1 | |
141 } [expr {$SQLITE_MAX_FUNCTION_ARG/2}] | |
142 } | |
143 if {$SQLITE_MAX_ATTACHED>=2} { | |
144 do_test sqllimits1-2.8.1 { | |
145 sqlite3_limit db SQLITE_LIMIT_ATTACHED \ | |
146 [expr {$::SQLITE_MAX_ATTACHED/2}] | |
147 } $SQLITE_MAX_ATTACHED | |
148 do_test sqllimits1-2.8.2 { | |
149 sqlite3_limit db SQLITE_LIMIT_ATTACHED -1 | |
150 } [expr {$SQLITE_MAX_ATTACHED/2}] | |
151 } | |
152 if {$SQLITE_MAX_LIKE_PATTERN_LENGTH>=2} { | |
153 do_test sqllimits1-2.9.1 { | |
154 sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH \ | |
155 [expr {$::SQLITE_MAX_LIKE_PATTERN_LENGTH/2}] | |
156 } $SQLITE_MAX_LIKE_PATTERN_LENGTH | |
157 do_test sqllimits1-2.9.2 { | |
158 sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1 | |
159 } [expr {$SQLITE_MAX_LIKE_PATTERN_LENGTH/2}] | |
160 } | |
161 if {$SQLITE_MAX_VARIABLE_NUMBER>=2} { | |
162 do_test sqllimits1-2.10.1 { | |
163 sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER \ | |
164 [expr {$::SQLITE_MAX_VARIABLE_NUMBER/2}] | |
165 } $SQLITE_MAX_VARIABLE_NUMBER | |
166 do_test sqllimits1-2.10.2 { | |
167 sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1 | |
168 } [expr {$SQLITE_MAX_VARIABLE_NUMBER/2}] | |
169 } | |
170 | |
171 # In a separate database connection, verify that the limits are unchanged. | |
172 # | |
173 do_test sqllimits1-3.1 { | |
174 sqlite3_limit db2 SQLITE_LIMIT_LENGTH -1 | |
175 } $SQLITE_MAX_LENGTH | |
176 do_test sqllimits1-3.2 { | |
177 sqlite3_limit db2 SQLITE_LIMIT_SQL_LENGTH -1 | |
178 } $SQLITE_MAX_SQL_LENGTH | |
179 do_test sqllimits1-3.3 { | |
180 sqlite3_limit db2 SQLITE_LIMIT_COLUMN -1 | |
181 } $SQLITE_MAX_COLUMN | |
182 do_test sqllimits1-3.4 { | |
183 sqlite3_limit db2 SQLITE_LIMIT_EXPR_DEPTH -1 | |
184 } $SQLITE_MAX_EXPR_DEPTH | |
185 do_test sqllimits1-3.5 { | |
186 sqlite3_limit db2 SQLITE_LIMIT_COMPOUND_SELECT -1 | |
187 } $SQLITE_MAX_COMPOUND_SELECT | |
188 do_test sqllimits1-3.6 { | |
189 sqlite3_limit db2 SQLITE_LIMIT_VDBE_OP -1 | |
190 } $SQLITE_MAX_VDBE_OP | |
191 do_test sqllimits1-3.7 { | |
192 sqlite3_limit db2 SQLITE_LIMIT_FUNCTION_ARG -1 | |
193 } $SQLITE_MAX_FUNCTION_ARG | |
194 do_test sqllimits1-3.8 { | |
195 sqlite3_limit db2 SQLITE_LIMIT_ATTACHED -1 | |
196 } $SQLITE_MAX_ATTACHED | |
197 do_test sqllimits1-3.9 { | |
198 sqlite3_limit db2 SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1 | |
199 } $SQLITE_MAX_LIKE_PATTERN_LENGTH | |
200 do_test sqllimits1-3.10 { | |
201 sqlite3_limit db2 SQLITE_LIMIT_VARIABLE_NUMBER -1 | |
202 } $SQLITE_MAX_VARIABLE_NUMBER | |
203 db2 close | |
204 | |
205 # Attempt to set all limits to the maximum 32-bit integer. Verify | |
206 # that the limit does not exceed the compile-time upper bound. | |
207 # | |
208 do_test sqllimits1-4.1.1 { | |
209 sqlite3_limit db SQLITE_LIMIT_LENGTH 0x7fffffff | |
210 sqlite3_limit db SQLITE_LIMIT_LENGTH -1 | |
211 } $SQLITE_MAX_LENGTH | |
212 do_test sqllimits1-4.2.1 { | |
213 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff | |
214 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1 | |
215 } $SQLITE_MAX_SQL_LENGTH | |
216 do_test sqllimits1-4.3.1 { | |
217 sqlite3_limit db SQLITE_LIMIT_COLUMN 0x7fffffff | |
218 sqlite3_limit db SQLITE_LIMIT_COLUMN -1 | |
219 } $SQLITE_MAX_COLUMN | |
220 do_test sqllimits1-4.4.1 { | |
221 sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH 0x7fffffff | |
222 sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1 | |
223 } $SQLITE_MAX_EXPR_DEPTH | |
224 do_test sqllimits1-4.5.1 { | |
225 sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 0x7fffffff | |
226 sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1 | |
227 } $SQLITE_MAX_COMPOUND_SELECT | |
228 do_test sqllimits1-4.6.1 { | |
229 sqlite3_limit db SQLITE_LIMIT_VDBE_OP 0x7fffffff | |
230 sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1 | |
231 } $SQLITE_MAX_VDBE_OP | |
232 do_test sqllimits1-4.7.1 { | |
233 sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG 0x7fffffff | |
234 sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1 | |
235 } $SQLITE_MAX_FUNCTION_ARG | |
236 do_test sqllimits1-4.8.1 { | |
237 sqlite3_limit db SQLITE_LIMIT_ATTACHED 0x7fffffff | |
238 sqlite3_limit db SQLITE_LIMIT_ATTACHED -1 | |
239 } $SQLITE_MAX_ATTACHED | |
240 do_test sqllimits1-4.9.1 { | |
241 sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH 0x7fffffff | |
242 sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1 | |
243 } $SQLITE_MAX_LIKE_PATTERN_LENGTH | |
244 do_test sqllimits1-4.10.1 { | |
245 sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER 0x7fffffff | |
246 sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1 | |
247 } $SQLITE_MAX_VARIABLE_NUMBER | |
248 | |
249 #-------------------------------------------------------------------- | |
250 # Test cases sqllimits1-5.* test that the SQLITE_MAX_LENGTH limit | |
251 # is enforced. | |
252 # | |
253 # EVIDENCE-OF: R-61987-00541 SQLITE_LIMIT_LENGTH The maximum size of any | |
254 # string or BLOB or table row, in bytes. | |
255 # | |
256 db close | |
257 sqlite3 db test.db | |
258 set LARGESIZE 99999 | |
259 set SQLITE_LIMIT_LENGTH 100000 | |
260 sqlite3_limit db SQLITE_LIMIT_LENGTH $SQLITE_LIMIT_LENGTH | |
261 | |
262 do_test sqllimits1-5.1.1 { | |
263 catchsql { SELECT randomblob(2147483647) } | |
264 } {1 {string or blob too big}} | |
265 do_test sqllimits1-5.1.2 { | |
266 catchsql { SELECT zeroblob(2147483647) } | |
267 } {1 {string or blob too big}} | |
268 | |
269 do_test sqllimits1-5.2 { | |
270 catchsql { SELECT LENGTH(randomblob($::LARGESIZE)) } | |
271 } [list 0 $LARGESIZE] | |
272 | |
273 do_test sqllimits1-5.3 { | |
274 catchsql { SELECT quote(randomblob($::LARGESIZE)) } | |
275 } {1 {string or blob too big}} | |
276 | |
277 do_test sqllimits1-5.4 { | |
278 catchsql { SELECT LENGTH(zeroblob($::LARGESIZE)) } | |
279 } [list 0 $LARGESIZE] | |
280 | |
281 do_test sqllimits1-5.5 { | |
282 catchsql { SELECT quote(zeroblob($::LARGESIZE)) } | |
283 } {1 {string or blob too big}} | |
284 | |
285 do_test sqllimits1-5.6 { | |
286 catchsql { SELECT zeroblob(-1) } | |
287 } {0 {{}}} | |
288 | |
289 do_test sqllimits1-5.9 { | |
290 set ::str [string repeat A 65537] | |
291 set ::rep [string repeat B 65537] | |
292 catchsql { SELECT replace($::str, 'A', $::rep) } | |
293 } {1 {string or blob too big}} | |
294 | |
295 do_test sqllimits1-5.10 { | |
296 set ::str [string repeat %J 2100] | |
297 catchsql { SELECT strftime($::str, '2003-10-31') } | |
298 } {1 {string or blob too big}} | |
299 | |
300 do_test sqllimits1-5.11 { | |
301 set ::str1 [string repeat A [expr {$SQLITE_LIMIT_LENGTH - 10}]] | |
302 set ::str2 [string repeat B [expr {$SQLITE_LIMIT_LENGTH - 10}]] | |
303 catchsql { SELECT $::str1 || $::str2 } | |
304 } {1 {string or blob too big}} | |
305 | |
306 do_test sqllimits1-5.12 { | |
307 set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]] | |
308 catchsql { SELECT quote($::str1) } | |
309 } {1 {string or blob too big}} | |
310 | |
311 do_test sqllimits1-5.13 { | |
312 set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]] | |
313 catchsql { SELECT hex($::str1) } | |
314 } {1 {string or blob too big}} | |
315 | |
316 do_test sqllimits1-5.14.1 { | |
317 set ::STMT [sqlite3_prepare db "SELECT ?" -1 TAIL] | |
318 sqlite3_bind_zeroblob $::STMT 1 [expr {$SQLITE_LIMIT_LENGTH + 1}] | |
319 } {} | |
320 do_test sqllimits1-5.14.2 { | |
321 sqlite3_step $::STMT | |
322 } {SQLITE_ERROR} | |
323 do_test sqllimits1-5.14.3 { | |
324 sqlite3_reset $::STMT | |
325 } {SQLITE_TOOBIG} | |
326 do_test sqllimits1-5.14.4 { | |
327 set np1 [expr {$SQLITE_LIMIT_LENGTH + 1}] | |
328 set ::str1 [string repeat A $np1] | |
329 catch {sqlite3_bind_text $::STMT 1 $::str1 -1} res | |
330 set res | |
331 } {SQLITE_TOOBIG} | |
332 ifcapable utf16 { | |
333 do_test sqllimits1-5.14.5 { | |
334 catch {sqlite3_bind_text16 $::STMT 1 $::str1 -1} res | |
335 set res | |
336 } {SQLITE_TOOBIG} | |
337 } | |
338 do_test sqllimits1-5.14.6 { | |
339 catch {sqlite3_bind_text $::STMT 1 $::str1 $np1} res | |
340 set res | |
341 } {SQLITE_TOOBIG} | |
342 ifcapable utf16 { | |
343 do_test sqllimits1-5.14.7 { | |
344 catch {sqlite3_bind_text16 $::STMT 1 $::str1 $np1} res | |
345 set res | |
346 } {SQLITE_TOOBIG} | |
347 } | |
348 do_test sqllimits1-5.14.8 { | |
349 set n [expr {$np1-1}] | |
350 catch {sqlite3_bind_text $::STMT 1 $::str1 $n} res | |
351 set res | |
352 } {} | |
353 do_test sqllimits1-5.14.9 { | |
354 catch {sqlite3_bind_text16 $::STMT 1 $::str1 $n} res | |
355 set res | |
356 } {} | |
357 sqlite3_finalize $::STMT | |
358 | |
359 do_test sqllimits1-5.15 { | |
360 execsql { | |
361 CREATE TABLE t4(x); | |
362 INSERT INTO t4 VALUES(1); | |
363 INSERT INTO t4 VALUES(2); | |
364 INSERT INTO t4 SELECT 2+x FROM t4; | |
365 } | |
366 catchsql { | |
367 SELECT group_concat(hex(randomblob(20000))) FROM t4; | |
368 } | |
369 } {1 {string or blob too big}} | |
370 db eval {DROP TABLE t4} | |
371 | |
372 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff | |
373 set strvalue [string repeat A $::SQLITE_LIMIT_LENGTH] | |
374 do_test sqllimits1-5.16 { | |
375 catchsql "SELECT '$strvalue'" | |
376 } [list 0 $strvalue] | |
377 do_test sqllimits1-5.17.1 { | |
378 catchsql "SELECT 'A$strvalue'" | |
379 } [list 1 {string or blob too big}] | |
380 do_test sqllimits1-5.17.2 { | |
381 sqlite3_limit db SQLITE_LIMIT_LENGTH 0x7fffffff | |
382 catchsql {SELECT 'A' || $::strvalue} | |
383 } [list 0 A$strvalue] | |
384 do_test sqllimits1-5.17.3 { | |
385 sqlite3_limit db SQLITE_LIMIT_LENGTH $SQLITE_LIMIT_LENGTH | |
386 catchsql {SELECT 'A' || $::strvalue} | |
387 } [list 1 {string or blob too big}] | |
388 set blobvalue [string repeat 41 $::SQLITE_LIMIT_LENGTH] | |
389 do_test sqllimits1-5.18 { | |
390 catchsql "SELECT x'$blobvalue'" | |
391 } [list 0 $strvalue] | |
392 do_test sqllimits1-5.19 { | |
393 catchsql "SELECT '41$blobvalue'" | |
394 } [list 1 {string or blob too big}] | |
395 unset blobvalue | |
396 | |
397 ifcapable datetime { | |
398 set strvalue [string repeat D [expr {$SQLITE_LIMIT_LENGTH-12}]] | |
399 do_test sqllimits1-5.20 { | |
400 catchsql {SELECT strftime('%Y ' || $::strvalue, '2008-01-02')} | |
401 } [list 0 [list "2008 $strvalue"]] | |
402 do_test sqllimits1-5.21 { | |
403 catchsql {SELECT strftime('%Y-%m-%d ' || $::strvalue, '2008-01-02')} | |
404 } {1 {string or blob too big}} | |
405 } | |
406 unset strvalue | |
407 | |
408 #-------------------------------------------------------------------- | |
409 # Test cases sqllimits1-6.* test that the SQLITE_MAX_SQL_LENGTH limit | |
410 # is enforced. | |
411 # | |
412 # EVIDENCE-OF: R-09808-17554 SQLITE_LIMIT_SQL_LENGTH The maximum length | |
413 # of an SQL statement, in bytes. | |
414 # | |
415 do_test sqllimits1-6.1 { | |
416 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000 | |
417 set sql "SELECT 1 WHERE 1==1" | |
418 set tail " /* A comment to take up space in order to make the string\ | |
419 longer without increasing the expression depth */\ | |
420 AND 1 == 1" | |
421 set N [expr {(50000 / [string length $tail])+1}] | |
422 append sql [string repeat $tail $N] | |
423 catchsql $sql | |
424 } {1 {string or blob too big}} | |
425 do_test sqllimits1-6.3 { | |
426 sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000 | |
427 set sql "SELECT 1 WHERE 1==1" | |
428 set tail " /* A comment to take up space in order to make the string\ | |
429 longer without increasing the expression depth */\ | |
430 AND 1 == 1" | |
431 set N [expr {(50000 / [string length $tail])+1}] | |
432 append sql [string repeat $tail $N] | |
433 set nbytes [string length $sql] | |
434 append sql { AND 0} | |
435 set rc [catch {sqlite3_prepare db $sql $nbytes TAIL} STMT] | |
436 lappend rc $STMT | |
437 } {1 {(18) statement too long}} | |
438 do_test sqllimits1-6.4 { | |
439 sqlite3_errmsg db | |
440 } {statement too long} | |
441 | |
442 #-------------------------------------------------------------------- | |
443 # Test cases sqllimits1-7.* test that the limit set using the | |
444 # max_page_count pragma. | |
445 # | |
446 do_test sqllimits1-7.1 { | |
447 execsql { | |
448 PRAGMA max_page_count = 1000; | |
449 } | |
450 } {1000} | |
451 do_test sqllimits1-7.2 { | |
452 execsql { CREATE TABLE trig (a INTEGER, b INTEGER); } | |
453 | |
454 # Set up a tree of triggers to fire when a row is inserted | |
455 # into table "trig". | |
456 # | |
457 # INSERT -> insert_b -> update_b -> insert_a -> update_a (chain 1) | |
458 # -> update_a -> insert_a -> update_b (chain 2) | |
459 # -> insert_a -> update_b -> insert_b -> update_a (chain 3) | |
460 # -> update_a -> insert_b -> update_b (chain 4) | |
461 # | |
462 # Table starts with N rows. | |
463 # | |
464 # Chain 1: insert_b (update N rows) | |
465 # -> update_b (insert 1 rows) | |
466 # -> insert_a (update N rows) | |
467 # -> update_a (insert 1 rows) | |
468 # | |
469 # chains 2, 3 and 4 are similar. Each inserts more than N^2 rows, where | |
470 # N is the number of rows at the conclusion of the previous chain. | |
471 # | |
472 # Therefore, a single insert adds (N^16 plus some) rows to the database. | |
473 # A really long loop... | |
474 # | |
475 execsql { | |
476 CREATE TRIGGER update_b BEFORE UPDATE ON trig | |
477 FOR EACH ROW BEGIN | |
478 INSERT INTO trig VALUES (65, 'update_b'); | |
479 END; | |
480 | |
481 CREATE TRIGGER update_a AFTER UPDATE ON trig | |
482 FOR EACH ROW BEGIN | |
483 INSERT INTO trig VALUES (65, 'update_a'); | |
484 END; | |
485 | |
486 CREATE TRIGGER insert_b BEFORE INSERT ON trig | |
487 FOR EACH ROW BEGIN | |
488 UPDATE trig SET a = 1; | |
489 END; | |
490 | |
491 CREATE TRIGGER insert_a AFTER INSERT ON trig | |
492 FOR EACH ROW BEGIN | |
493 UPDATE trig SET a = 1; | |
494 END; | |
495 } | |
496 } {} | |
497 | |
498 do_test sqllimits1-7.3 { | |
499 execsql { | |
500 INSERT INTO trig VALUES (1,1); | |
501 } | |
502 } {} | |
503 | |
504 do_test sqllimits1-7.4 { | |
505 execsql { | |
506 SELECT COUNT(*) FROM trig; | |
507 } | |
508 } {7} | |
509 | |
510 # This tries to insert so many rows it fills up the database (limited | |
511 # to 1MB, so not that noteworthy an achievement). | |
512 # | |
513 do_test sqllimits1-7.5 { | |
514 catchsql { | |
515 INSERT INTO trig VALUES (1,10); | |
516 } | |
517 } {1 {database or disk is full}} | |
518 | |
519 do_test sqllimits1-7.6 { | |
520 catchsql { | |
521 SELECT COUNT(*) FROM trig; | |
522 } | |
523 } {0 7} | |
524 | |
525 # Now check the response of the library to opening a file larger than | |
526 # the current max_page_count value. The response is to change the | |
527 # internal max_page_count value to match the actual size of the file. | |
528 if {[db eval {PRAGMA auto_vacuum}]} { | |
529 set fsize 1700 | |
530 } else { | |
531 set fsize 1691 | |
532 } | |
533 do_test sqllimits1-7.7.1 { | |
534 execsql { | |
535 PRAGMA max_page_count = 1000000; | |
536 CREATE TABLE abc(a, b, c); | |
537 INSERT INTO abc VALUES(1, 2, 3); | |
538 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
539 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
540 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
541 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
542 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
543 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
544 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
545 INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc; | |
546 INSERT INTO abc SELECT a, b, c FROM abc; | |
547 INSERT INTO abc SELECT b, a, c FROM abc; | |
548 INSERT INTO abc SELECT c, b, a FROM abc; | |
549 } | |
550 expr [file size test.db] / 1024 | |
551 } $fsize | |
552 do_test sqllimits1-7.7.2 { | |
553 db close | |
554 sqlite3 db test.db | |
555 execsql { | |
556 PRAGMA max_page_count = 1000; | |
557 } | |
558 execsql { | |
559 SELECT count(*) FROM sqlite_master; | |
560 } | |
561 } {6} | |
562 do_test sqllimits1-7.7.3 { | |
563 execsql { | |
564 PRAGMA max_page_count; | |
565 } | |
566 } $fsize | |
567 do_test sqllimits1-7.7.4 { | |
568 execsql { | |
569 DROP TABLE abc; | |
570 } | |
571 } {} | |
572 | |
573 #-------------------------------------------------------------------- | |
574 # Test cases sqllimits1-8.* test the SQLITE_MAX_COLUMN limit. | |
575 # | |
576 # EVIDENCE-OF: R-43996-29471 SQLITE_LIMIT_COLUMN The maximum number of | |
577 # columns in a table definition or in the result set of a SELECT or the | |
578 # maximum number of columns in an index or in an ORDER BY or GROUP BY | |
579 # clause. | |
580 # | |
581 set SQLITE_LIMIT_COLUMN 200 | |
582 sqlite3_limit db SQLITE_LIMIT_COLUMN $SQLITE_LIMIT_COLUMN | |
583 do_test sqllimits1-8.1 { | |
584 # Columns in a table. | |
585 set cols [list] | |
586 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
587 lappend cols "c$i" | |
588 } | |
589 catchsql "CREATE TABLE t([join $cols ,])" | |
590 } {1 {too many columns on t}} | |
591 | |
592 do_test sqllimits1-8.2 { | |
593 # Columns in the result-set of a SELECT. | |
594 set cols [list] | |
595 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
596 lappend cols "sql AS sql$i" | |
597 } | |
598 catchsql "SELECT [join $cols ,] FROM sqlite_master" | |
599 } {1 {too many columns in result set}} | |
600 | |
601 do_test sqllimits1-8.3 { | |
602 # Columns in the result-set of a sub-SELECT. | |
603 set cols [list] | |
604 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
605 lappend cols "sql AS sql$i" | |
606 } | |
607 catchsql "SELECT sql4 FROM (SELECT [join $cols ,] FROM sqlite_master)" | |
608 } {1 {too many columns in result set}} | |
609 | |
610 do_test sqllimits1-8.4 { | |
611 # Columns in an index. | |
612 set cols [list] | |
613 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
614 lappend cols c | |
615 } | |
616 set sql1 "CREATE TABLE t1(c);" | |
617 set sql2 "CREATE INDEX i1 ON t1([join $cols ,]);" | |
618 catchsql "$sql1 ; $sql2" | |
619 } {1 {too many columns in index}} | |
620 | |
621 do_test sqllimits1-8.5 { | |
622 # Columns in a GROUP BY clause. | |
623 catchsql "SELECT * FROM t1 GROUP BY [join $cols ,]" | |
624 } {1 {too many terms in GROUP BY clause}} | |
625 | |
626 do_test sqllimits1-8.6 { | |
627 # Columns in an ORDER BY clause. | |
628 catchsql "SELECT * FROM t1 ORDER BY [join $cols ,]" | |
629 } {1 {too many terms in ORDER BY clause}} | |
630 | |
631 do_test sqllimits1-8.7 { | |
632 # Assignments in an UPDATE statement. | |
633 set cols [list] | |
634 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
635 lappend cols "c = 1" | |
636 } | |
637 catchsql "UPDATE t1 SET [join $cols ,];" | |
638 } {1 {too many columns in set list}} | |
639 | |
640 do_test sqllimits1-8.8 { | |
641 # Columns in a view definition: | |
642 set cols [list] | |
643 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
644 lappend cols "c$i" | |
645 } | |
646 execsql "CREATE VIEW v1 AS SELECT [join $cols ,] FROM t1;" | |
647 catchsql {SELECT * FROM v1} | |
648 } {1 {too many columns in result set}} | |
649 | |
650 do_test sqllimits1-8.9 { | |
651 # Columns in a view definition (testing * expansion): | |
652 set cols [list] | |
653 for {set i 0} {$i < $SQLITE_LIMIT_COLUMN} {incr i} { | |
654 lappend cols "c$i" | |
655 } | |
656 execsql {DROP VIEW IF EXISTS v1} | |
657 catchsql "CREATE TABLE t2([join $cols ,])" | |
658 catchsql "CREATE VIEW v1 AS SELECT *, c1 AS o FROM t2;" | |
659 catchsql "SELECT * FROM v1" | |
660 } {1 {too many columns in result set}} | |
661 | |
662 do_test sqllimits1-8.10 { | |
663 # ORDER BY columns | |
664 set cols [list] | |
665 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
666 lappend cols c | |
667 } | |
668 set sql "SELECT c FROM t1 ORDER BY [join $cols ,]" | |
669 catchsql $sql | |
670 } {1 {too many terms in ORDER BY clause}} | |
671 do_test sqllimits1-8.11 { | |
672 # ORDER BY columns | |
673 set cols [list] | |
674 for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} { | |
675 lappend cols [expr {$i%3 + 1}] | |
676 } | |
677 set sql "SELECT c, c+1, c+2 FROM t1 UNION SELECT c-1, c-2, c-3 FROM t1" | |
678 append sql " ORDER BY [join $cols ,]" | |
679 catchsql $sql | |
680 } {1 {too many terms in ORDER BY clause}} | |
681 | |
682 | |
683 #-------------------------------------------------------------------- | |
684 # These tests - sqllimits1-9.* - test that the SQLITE_LIMIT_EXPR_DEPTH | |
685 # limit is enforced. The limit refers to the number of terms in | |
686 # the expression. | |
687 # | |
688 # EVIDENCE-OF: R-12723-08526 SQLITE_LIMIT_EXPR_DEPTH The maximum depth | |
689 # of the parse tree on any expression. | |
690 # | |
691 if {$SQLITE_MAX_EXPR_DEPTH==0} { | |
692 puts -nonewline stderr "WARNING: Compile with -DSQLITE_MAX_EXPR_DEPTH to run " | |
693 puts stderr "tests sqllimits1-9.X" | |
694 } else { | |
695 do_test sqllimits1-9.1 { | |
696 set max $::SQLITE_MAX_EXPR_DEPTH | |
697 set expr "(1 [string repeat {AND 1 } $max])" | |
698 catchsql [subst { | |
699 SELECT $expr | |
700 }] | |
701 } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}" | |
702 | |
703 # Attempting to beat the expression depth limit using nested SELECT | |
704 # queries causes a parser stack overflow. | |
705 do_test sqllimits1-9.2 { | |
706 set max $::SQLITE_MAX_EXPR_DEPTH | |
707 set expr "SELECT 1" | |
708 for {set i 0} {$i <= $max} {incr i} { | |
709 set expr "SELECT ($expr)" | |
710 } | |
711 catchsql [subst { $expr }] | |
712 } "1 {parser stack overflow}" | |
713 | |
714 if 0 { | |
715 do_test sqllimits1-9.3 { | |
716 execsql { | |
717 PRAGMA max_page_count = 1000000; -- 1 GB | |
718 CREATE TABLE v0(a); | |
719 INSERT INTO v0 VALUES(1); | |
720 } | |
721 db transaction { | |
722 for {set i 1} {$i < 200} {incr i} { | |
723 set expr "(a [string repeat {AND 1 } 50]) AS a" | |
724 execsql [subst { | |
725 CREATE VIEW v${i} AS SELECT $expr FROM v[expr {$i-1}] | |
726 }] | |
727 } | |
728 } | |
729 } {} | |
730 | |
731 do_test sqllimits1-9.4 { | |
732 catchsql { | |
733 SELECT a FROM v199 | |
734 } | |
735 } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}" | |
736 } | |
737 } | |
738 | |
739 #-------------------------------------------------------------------- | |
740 # Test cases sqllimits1-10.* test that the SQLITE_MAX_VDBE_OP | |
741 # limit works as expected. The limit refers to the number of opcodes | |
742 # in a single VDBE program. | |
743 # | |
744 # TODO | |
745 | |
746 #-------------------------------------------------------------------- | |
747 # Test the SQLITE_LIMIT_FUNCTION_ARG limit works. Test case names | |
748 # match the pattern "sqllimits1-11.*". | |
749 # | |
750 # EVIDENCE-OF: R-59001-45278 SQLITE_LIMIT_FUNCTION_ARG The maximum | |
751 # number of arguments on a function. | |
752 # | |
753 for {set max 5} {$max<=$SQLITE_MAX_FUNCTION_ARG} {incr max} { | |
754 do_test sqllimits1-11.$max.1 { | |
755 set vals [list] | |
756 sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG $::max | |
757 for {set i 0} {$i < $::max} {incr i} { | |
758 lappend vals $i | |
759 } | |
760 catchsql "SELECT max([join $vals ,])" | |
761 } "0 [expr {$::max - 1}]" | |
762 do_test sqllimits1-11.$max.2 { | |
763 set vals [list] | |
764 for {set i 0} {$i <= $::max} {incr i} { | |
765 lappend vals $i | |
766 } | |
767 catchsql "SELECT max([join $vals ,])" | |
768 } {1 {too many arguments on function max}} | |
769 | |
770 # Test that it is SQLite, and not the implementation of the | |
771 # user function that is throwing the error. | |
772 proc myfunc {args} {error "I don't like to be called!"} | |
773 do_test sqllimits1-11.$max.2 { | |
774 db function myfunc myfunc | |
775 set vals [list] | |
776 for {set i 0} {$i <= $::max} {incr i} { | |
777 lappend vals $i | |
778 } | |
779 catchsql "SELECT myfunc([join $vals ,])" | |
780 } {1 {too many arguments on function myfunc}} | |
781 } | |
782 | |
783 #-------------------------------------------------------------------- | |
784 # Test cases sqllimits1-12.*: Test the SQLITE_MAX_ATTACHED limit. | |
785 # | |
786 # EVIDENCE-OF: R-41778-26203 SQLITE_LIMIT_ATTACHED The maximum number of | |
787 # attached databases. | |
788 # | |
789 ifcapable attach { | |
790 do_test sqllimits1-12.1 { | |
791 set max $::SQLITE_MAX_ATTACHED | |
792 for {set i 0} {$i < ($max)} {incr i} { | |
793 forcedelete test${i}.db test${i}.db-journal | |
794 } | |
795 for {set i 0} {$i < ($max)} {incr i} { | |
796 execsql "ATTACH 'test${i}.db' AS aux${i}" | |
797 } | |
798 catchsql "ATTACH 'test${i}.db' AS aux${i}" | |
799 } "1 {too many attached databases - max $::SQLITE_MAX_ATTACHED}" | |
800 do_test sqllimits1-12.2 { | |
801 set max $::SQLITE_MAX_ATTACHED | |
802 for {set i 0} {$i < ($max)} {incr i} { | |
803 execsql "DETACH aux${i}" | |
804 } | |
805 } {} | |
806 } | |
807 | |
808 #-------------------------------------------------------------------- | |
809 # Test cases sqllimits1-13.*: Check that the SQLITE_MAX_VARIABLE_NUMBER | |
810 # limit works. | |
811 # | |
812 # EVIDENCE-OF: R-42363-29104 SQLITE_LIMIT_VARIABLE_NUMBER The maximum | |
813 # index number of any parameter in an SQL statement. | |
814 # | |
815 do_test sqllimits1-13.1 { | |
816 set max $::SQLITE_MAX_VARIABLE_NUMBER | |
817 catchsql "SELECT ?[expr {$max+1}] FROM t1" | |
818 } "1 {variable number must be between ?1 and ?$::SQLITE_MAX_VARIABLE_NUMBER}" | |
819 do_test sqllimits1-13.2 { | |
820 set max $::SQLITE_MAX_VARIABLE_NUMBER | |
821 set vals [list] | |
822 for {set i 0} {$i < ($max+3)} {incr i} { | |
823 lappend vals ? | |
824 } | |
825 catchsql "SELECT [join $vals ,] FROM t1" | |
826 } "1 {too many SQL variables}" | |
827 | |
828 | |
829 #-------------------------------------------------------------------- | |
830 # Test cases sqllimits1-15.* verify that the | |
831 # SQLITE_MAX_LIKE_PATTERN_LENGTH limit is enforced. This limit only | |
832 # applies to the built-in LIKE operator, supplying an external | |
833 # implementation by overriding the like() scalar function bypasses | |
834 # this limitation. | |
835 # | |
836 # EVIDENCE-OF: R-12940-37052 SQLITE_LIMIT_LIKE_PATTERN_LENGTH The | |
837 # maximum length of the pattern argument to the LIKE or GLOB operators. | |
838 # | |
839 # These tests check that the limit is not incorrectly applied to | |
840 # the left-hand-side of the LIKE operator (the string being tested | |
841 # against the pattern). | |
842 # | |
843 set SQLITE_LIMIT_LIKE_PATTERN 1000 | |
844 sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH $SQLITE_LIMIT_LIKE_PATTERN | |
845 do_test sqllimits1-15.1 { | |
846 set max $::SQLITE_LIMIT_LIKE_PATTERN | |
847 set ::pattern [string repeat "A%" [expr $max/2]] | |
848 set ::string [string repeat "A" [expr {$max*2}]] | |
849 execsql { | |
850 SELECT $::string LIKE $::pattern; | |
851 } | |
852 } {1} | |
853 do_test sqllimits1-15.2 { | |
854 set max $::SQLITE_LIMIT_LIKE_PATTERN | |
855 set ::pattern [string repeat "A%" [expr {($max/2) + 1}]] | |
856 set ::string [string repeat "A" [expr {$max*2}]] | |
857 catchsql { | |
858 SELECT $::string LIKE $::pattern; | |
859 } | |
860 } {1 {LIKE or GLOB pattern too complex}} | |
861 | |
862 #-------------------------------------------------------------------- | |
863 # This test case doesn't really belong with the other limits tests. | |
864 # It is in this file because it is taxing to run, like the limits tests. | |
865 # | |
866 do_test sqllimits1-16.1 { | |
867 set ::N [expr int(([expr pow(2,32)]/50) + 1)] | |
868 expr (($::N*50) & 0xffffffff)<55 | |
869 } {1} | |
870 do_test sqllimits1-16.2 { | |
871 set ::format "[string repeat A 60][string repeat "%J" $::N]" | |
872 catchsql { | |
873 SELECT strftime($::format, 1); | |
874 } | |
875 } {1 {string or blob too big}} | |
876 | |
877 do_catchsql_test sqllimits1.17.0 { | |
878 SELECT *,*,*,*,*,*,*,* FROM ( | |
879 SELECT *,*,*,*,*,*,*,* FROM ( | |
880 SELECT *,*,*,*,*,*,*,* FROM ( | |
881 SELECT *,*,*,*,*,*,*,* FROM ( | |
882 SELECT *,*,*,*,*,*,*,* FROM ( | |
883 SELECT 1,2,3,4,5,6,7,8,9,10 | |
884 ) | |
885 )))) | |
886 } "1 {too many columns in result set}" | |
887 | |
888 | |
889 foreach {key value} [array get saved] { | |
890 catch {set $key $value} | |
891 } | |
892 finish_test | |
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