wasCSharpSQLite – Blame information for rev 7

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