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1 # 2005 February 18 | |
2 # | |
3 # The author disclaims copyright to this source code. In place of | |
4 # a legal notice, here is a blessing: | |
5 # | |
6 # May you do good and not evil. | |
7 # May you find forgiveness for yourself and forgive others. | |
8 # May you share freely, never taking more than you give. | |
9 # | |
10 #************************************************************************* | |
11 # This file implements regression tests for SQLite library. The | |
12 # focus of this script is testing that SQLite can handle a subtle | |
13 # file format change that may be used in the future to implement | |
14 # "ALTER TABLE ... ADD COLUMN". | |
15 # | |
16 # $Id: alter2.test,v 1.14 2009/04/07 14:14:22 danielk1977 Exp $ | |
17 # | |
18 | |
19 set testdir [file dirname $argv0] | |
20 source $testdir/tester.tcl | |
21 | |
22 # We have to have pragmas in order to do this test | |
23 ifcapable {!pragma} return | |
24 | |
25 # Do not use a codec for tests in this file, as the database file is | |
26 # manipulated directly using tcl scripts. See proc [set_file_format]. | |
27 # | |
28 do_not_use_codec | |
29 | |
30 # The file format change affects the way row-records stored in tables (but | |
31 # not indices) are interpreted. Before version 3.1.3, a row-record for a | |
32 # table with N columns was guaranteed to contain exactly N fields. As | |
33 # of version 3.1.3, the record may contain up to N fields. In this case | |
34 # the M fields that are present are the values for the left-most M | |
35 # columns. The (N-M) rightmost columns contain NULL. | |
36 # | |
37 # If any records in the database contain less fields than their table | |
38 # has columns, then the file-format meta value should be set to (at least) 2. | |
39 # | |
40 | |
41 # This procedure sets the value of the file-format in file 'test.db' | |
42 # to $newval. Also, the schema cookie is incremented. | |
43 # | |
44 proc set_file_format {newval} { | |
45 hexio_write test.db 44 [hexio_render_int32 $newval] | |
46 set schemacookie [hexio_get_int [hexio_read test.db 40 4]] | |
47 incr schemacookie | |
48 hexio_write test.db 40 [hexio_render_int32 $schemacookie] | |
49 return {} | |
50 } | |
51 | |
52 # This procedure returns the value of the file-format in file 'test.db'. | |
53 # | |
54 proc get_file_format {{fname test.db}} { | |
55 return [hexio_get_int [hexio_read $fname 44 4]] | |
56 } | |
57 | |
58 # This procedure sets the SQL statement stored for table $tbl in the | |
59 # sqlite_master table of file 'test.db' to $sql. Also set the file format | |
60 # to the supplied value. This is 2 if the added column has a default that is | |
61 # NULL, or 3 otherwise. | |
62 # | |
63 proc alter_table {tbl sql {file_format 2}} { | |
64 sqlite3 dbat test.db | |
65 set s [string map {' ''} $sql] | |
66 set t [string map {' ''} $tbl] | |
67 dbat eval [subst { | |
68 PRAGMA writable_schema = 1; | |
69 UPDATE sqlite_master SET sql = '$s' WHERE name = '$t' AND type = 'table'; | |
70 PRAGMA writable_schema = 0; | |
71 }] | |
72 dbat close | |
73 set_file_format 2 | |
74 } | |
75 | |
76 # Create bogus application-defined functions for functions used | |
77 # internally by ALTER TABLE, to ensure that ALTER TABLE falls back | |
78 # to the built-in functions. | |
79 # | |
80 proc failing_app_func {args} {error "bad function"} | |
81 do_test alter2-1.0 { | |
82 db func substr failing_app_func | |
83 db func like failing_app_func | |
84 db func sqlite_rename_table failing_app_func | |
85 db func sqlite_rename_trigger failing_app_func | |
86 db func sqlite_rename_parent failing_app_func | |
87 catchsql {SELECT substr('abcdefg',1,3)} | |
88 } {1 {bad function}} | |
89 | |
90 | |
91 #----------------------------------------------------------------------- | |
92 # Some basic tests to make sure short rows are handled. | |
93 # | |
94 do_test alter2-1.1 { | |
95 execsql { | |
96 CREATE TABLE abc(a, b); | |
97 INSERT INTO abc VALUES(1, 2); | |
98 INSERT INTO abc VALUES(3, 4); | |
99 INSERT INTO abc VALUES(5, 6); | |
100 } | |
101 } {} | |
102 do_test alter2-1.2 { | |
103 # ALTER TABLE abc ADD COLUMN c; | |
104 alter_table abc {CREATE TABLE abc(a, b, c);} | |
105 } {} | |
106 do_test alter2-1.3 { | |
107 execsql { | |
108 SELECT * FROM abc; | |
109 } | |
110 } {1 2 {} 3 4 {} 5 6 {}} | |
111 do_test alter2-1.4 { | |
112 execsql { | |
113 UPDATE abc SET c = 10 WHERE a = 1; | |
114 SELECT * FROM abc; | |
115 } | |
116 } {1 2 10 3 4 {} 5 6 {}} | |
117 do_test alter2-1.5 { | |
118 execsql { | |
119 CREATE INDEX abc_i ON abc(c); | |
120 } | |
121 } {} | |
122 do_test alter2-1.6 { | |
123 execsql { | |
124 SELECT c FROM abc ORDER BY c; | |
125 } | |
126 } {{} {} 10} | |
127 do_test alter2-1.7 { | |
128 execsql { | |
129 SELECT * FROM abc WHERE c = 10; | |
130 } | |
131 } {1 2 10} | |
132 do_test alter2-1.8 { | |
133 execsql { | |
134 SELECT sum(a), c FROM abc GROUP BY c; | |
135 } | |
136 } {8 {} 1 10} | |
137 do_test alter2-1.9 { | |
138 # ALTER TABLE abc ADD COLUMN d; | |
139 alter_table abc {CREATE TABLE abc(a, b, c, d);} | |
140 if {[permutation] == "prepare"} { db cache flush } | |
141 execsql { SELECT * FROM abc; } | |
142 execsql { | |
143 UPDATE abc SET d = 11 WHERE c IS NULL AND a<4; | |
144 SELECT * FROM abc; | |
145 } | |
146 } {1 2 10 {} 3 4 {} 11 5 6 {} {}} | |
147 do_test alter2-1.10 { | |
148 execsql { | |
149 SELECT typeof(d) FROM abc; | |
150 } | |
151 } {null integer null} | |
152 do_test alter2-1.99 { | |
153 execsql { | |
154 DROP TABLE abc; | |
155 } | |
156 } {} | |
157 | |
158 #----------------------------------------------------------------------- | |
159 # Test that views work when the underlying table structure is changed. | |
160 # | |
161 ifcapable view { | |
162 do_test alter2-2.1 { | |
163 execsql { | |
164 CREATE TABLE abc2(a, b, c); | |
165 INSERT INTO abc2 VALUES(1, 2, 10); | |
166 INSERT INTO abc2 VALUES(3, 4, NULL); | |
167 INSERT INTO abc2 VALUES(5, 6, NULL); | |
168 CREATE VIEW abc2_v AS SELECT * FROM abc2; | |
169 SELECT * FROM abc2_v; | |
170 } | |
171 } {1 2 10 3 4 {} 5 6 {}} | |
172 do_test alter2-2.2 { | |
173 # ALTER TABLE abc ADD COLUMN d; | |
174 alter_table abc2 {CREATE TABLE abc2(a, b, c, d);} | |
175 execsql { | |
176 SELECT * FROM abc2_v; | |
177 } | |
178 } {1 2 10 {} 3 4 {} {} 5 6 {} {}} | |
179 do_test alter2-2.3 { | |
180 execsql { | |
181 DROP TABLE abc2; | |
182 DROP VIEW abc2_v; | |
183 } | |
184 } {} | |
185 } | |
186 | |
187 #----------------------------------------------------------------------- | |
188 # Test that triggers work when a short row is copied to the old.* | |
189 # trigger pseudo-table. | |
190 # | |
191 ifcapable trigger { | |
192 do_test alter2-3.1 { | |
193 execsql { | |
194 CREATE TABLE abc3(a, b); | |
195 CREATE TABLE blog(o, n); | |
196 CREATE TRIGGER abc3_t AFTER UPDATE OF b ON abc3 BEGIN | |
197 INSERT INTO blog VALUES(old.b, new.b); | |
198 END; | |
199 } | |
200 } {} | |
201 do_test alter2-3.2 { | |
202 execsql { | |
203 INSERT INTO abc3 VALUES(1, 4); | |
204 UPDATE abc3 SET b = 2 WHERE b = 4; | |
205 SELECT * FROM blog; | |
206 } | |
207 } {4 2} | |
208 do_test alter2-3.3 { | |
209 execsql { | |
210 INSERT INTO abc3 VALUES(3, 4); | |
211 INSERT INTO abc3 VALUES(5, 6); | |
212 } | |
213 alter_table abc3 {CREATE TABLE abc3(a, b, c);} | |
214 execsql { | |
215 SELECT * FROM abc3; | |
216 } | |
217 } {1 2 {} 3 4 {} 5 6 {}} | |
218 do_test alter2-3.4 { | |
219 execsql { | |
220 UPDATE abc3 SET b = b*2 WHERE a<4; | |
221 SELECT * FROM abc3; | |
222 } | |
223 } {1 4 {} 3 8 {} 5 6 {}} | |
224 do_test alter2-3.5 { | |
225 execsql { | |
226 SELECT * FROM blog; | |
227 } | |
228 } {4 2 2 4 4 8} | |
229 | |
230 do_test alter2-3.6 { | |
231 execsql { | |
232 CREATE TABLE clog(o, n); | |
233 CREATE TRIGGER abc3_t2 AFTER UPDATE OF c ON abc3 BEGIN | |
234 INSERT INTO clog VALUES(old.c, new.c); | |
235 END; | |
236 UPDATE abc3 SET c = a*2; | |
237 SELECT * FROM clog; | |
238 } | |
239 } {{} 2 {} 6 {} 10} | |
240 } else { | |
241 execsql { CREATE TABLE abc3(a, b); } | |
242 } | |
243 | |
244 #--------------------------------------------------------------------- | |
245 # Check that an error occurs if the database is upgraded to a file | |
246 # format that SQLite does not support (in this case 5). Note: The | |
247 # file format is checked each time the schema is read, so changing the | |
248 # file format requires incrementing the schema cookie. | |
249 # | |
250 do_test alter2-4.1 { | |
251 db close | |
252 set_file_format 5 | |
253 catch { sqlite3 db test.db } | |
254 set {} {} | |
255 } {} | |
256 do_test alter2-4.2 { | |
257 # We have to run two queries here because the Tcl interface uses | |
258 # sqlite3_prepare_v2(). In this case, the first query encounters an | |
259 # SQLITE_SCHEMA error. Then, when trying to recompile the statement, the | |
260 # "unsupported file format" error is encountered. So the error code | |
261 # returned is SQLITE_SCHEMA, not SQLITE_ERROR as required by the following | |
262 # test case. | |
263 # | |
264 # When the query is attempted a second time, the same error message is | |
265 # returned but the error code is SQLITE_ERROR, because the unsupported | |
266 # file format was detected during a call to sqlite3_prepare(), not | |
267 # sqlite3_step(). | |
268 # | |
269 catchsql { SELECT * FROM sqlite_master; } | |
270 catchsql { SELECT * FROM sqlite_master; } | |
271 } {1 {unsupported file format}} | |
272 do_test alter2-4.3 { | |
273 sqlite3_errcode db | |
274 } {SQLITE_ERROR} | |
275 do_test alter2-4.4 { | |
276 set ::DB [sqlite3_connection_pointer db] | |
277 catchsql { | |
278 SELECT * FROM sqlite_master; | |
279 } | |
280 } {1 {unsupported file format}} | |
281 do_test alter2-4.5 { | |
282 sqlite3_errcode db | |
283 } {SQLITE_ERROR} | |
284 | |
285 #--------------------------------------------------------------------- | |
286 # Check that executing VACUUM on a file with file-format version 2 | |
287 # resets the file format to 1. | |
288 # | |
289 set default_file_format [expr $SQLITE_DEFAULT_FILE_FORMAT==4 ? 4 : 1] | |
290 ifcapable vacuum { | |
291 do_test alter2-5.1 { | |
292 set_file_format 2 | |
293 db close | |
294 sqlite3 db test.db | |
295 execsql {SELECT 1 FROM sqlite_master LIMIT 1;} | |
296 get_file_format | |
297 } {2} | |
298 do_test alter2-5.2 { | |
299 execsql { VACUUM } | |
300 } {} | |
301 do_test alter2-5.3 { | |
302 get_file_format | |
303 } $default_file_format | |
304 } | |
305 | |
306 #--------------------------------------------------------------------- | |
307 # Test that when a database with file-format 2 is opened, new | |
308 # databases are still created with file-format 1. | |
309 # | |
310 do_test alter2-6.1 { | |
311 db close | |
312 set_file_format 2 | |
313 sqlite3 db test.db | |
314 get_file_format | |
315 } {2} | |
316 ifcapable attach { | |
317 do_test alter2-6.2 { | |
318 forcedelete test2.db-journal | |
319 forcedelete test2.db | |
320 execsql { | |
321 ATTACH 'test2.db' AS aux; | |
322 CREATE TABLE aux.t1(a, b); | |
323 } | |
324 get_file_format test2.db | |
325 } $default_file_format | |
326 } | |
327 do_test alter2-6.3 { | |
328 execsql { | |
329 CREATE TABLE t1(a, b); | |
330 } | |
331 get_file_format | |
332 } {2} | |
333 | |
334 #--------------------------------------------------------------------- | |
335 # Test that types and values for columns added with default values | |
336 # other than NULL work with SELECT statements. | |
337 # | |
338 do_test alter2-7.1 { | |
339 execsql { | |
340 DROP TABLE t1; | |
341 CREATE TABLE t1(a); | |
342 INSERT INTO t1 VALUES(1); | |
343 INSERT INTO t1 VALUES(2); | |
344 INSERT INTO t1 VALUES(3); | |
345 INSERT INTO t1 VALUES(4); | |
346 SELECT * FROM t1; | |
347 } | |
348 } {1 2 3 4} | |
349 do_test alter2-7.2 { | |
350 set sql {CREATE TABLE t1(a, b DEFAULT '123', c INTEGER DEFAULT '123')} | |
351 alter_table t1 $sql 3 | |
352 execsql { | |
353 SELECT * FROM t1 LIMIT 1; | |
354 } | |
355 } {1 123 123} | |
356 do_test alter2-7.3 { | |
357 execsql { | |
358 SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1; | |
359 } | |
360 } {1 integer 123 text 123 integer} | |
361 do_test alter2-7.4 { | |
362 execsql { | |
363 SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1; | |
364 } | |
365 } {1 integer 123 text 123 integer} | |
366 do_test alter2-7.5 { | |
367 set sql {CREATE TABLE t1(a, b DEFAULT -123.0, c VARCHAR(10) default 5)} | |
368 alter_table t1 $sql 3 | |
369 execsql { | |
370 SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1; | |
371 } | |
372 } {1 integer -123 integer 5 text} | |
373 | |
374 #----------------------------------------------------------------------- | |
375 # Test that UPDATE trigger tables work with default values, and that when | |
376 # a row is updated the default values are correctly transfered to the | |
377 # new row. | |
378 # | |
379 ifcapable trigger { | |
380 db function set_val {set ::val} | |
381 do_test alter2-8.1 { | |
382 execsql { | |
383 CREATE TRIGGER trig1 BEFORE UPDATE ON t1 BEGIN | |
384 SELECT set_val( | |
385 old.b||' '||typeof(old.b)||' '||old.c||' '||typeof(old.c)||' '|| | |
386 new.b||' '||typeof(new.b)||' '||new.c||' '||typeof(new.c) | |
387 ); | |
388 END; | |
389 } | |
390 list | |
391 } {} | |
392 } | |
393 do_test alter2-8.2 { | |
394 execsql { | |
395 UPDATE t1 SET c = 10 WHERE a = 1; | |
396 SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1; | |
397 } | |
398 } {1 integer -123 integer 10 text} | |
399 ifcapable trigger { | |
400 do_test alter2-8.3 { | |
401 set ::val | |
402 } {-123 integer 5 text -123 integer 10 text} | |
403 } | |
404 | |
405 #----------------------------------------------------------------------- | |
406 # Test that DELETE trigger tables work with default values, and that when | |
407 # a row is updated the default values are correctly transfered to the | |
408 # new row. | |
409 # | |
410 ifcapable trigger { | |
411 do_test alter2-9.1 { | |
412 execsql { | |
413 CREATE TRIGGER trig2 BEFORE DELETE ON t1 BEGIN | |
414 SELECT set_val( | |
415 old.b||' '||typeof(old.b)||' '||old.c||' '||typeof(old.c) | |
416 ); | |
417 END; | |
418 } | |
419 list | |
420 } {} | |
421 do_test alter2-9.2 { | |
422 execsql { | |
423 DELETE FROM t1 WHERE a = 2; | |
424 } | |
425 set ::val | |
426 } {-123 integer 5 text} | |
427 } | |
428 | |
429 #----------------------------------------------------------------------- | |
430 # Test creating an index on a column added with a default value. | |
431 # | |
432 ifcapable bloblit { | |
433 do_test alter2-10.1 { | |
434 execsql { | |
435 CREATE TABLE t2(a); | |
436 INSERT INTO t2 VALUES('a'); | |
437 INSERT INTO t2 VALUES('b'); | |
438 INSERT INTO t2 VALUES('c'); | |
439 INSERT INTO t2 VALUES('d'); | |
440 } | |
441 alter_table t2 {CREATE TABLE t2(a, b DEFAULT X'ABCD', c DEFAULT NULL);} 3 | |
442 catchsql { | |
443 SELECT * FROM sqlite_master; | |
444 } | |
445 execsql { | |
446 SELECT quote(a), quote(b), quote(c) FROM t2 LIMIT 1; | |
447 } | |
448 } {'a' X'ABCD' NULL} | |
449 do_test alter2-10.2 { | |
450 execsql { | |
451 CREATE INDEX i1 ON t2(b); | |
452 SELECT a FROM t2 WHERE b = X'ABCD'; | |
453 } | |
454 } {a b c d} | |
455 do_test alter2-10.3 { | |
456 execsql { | |
457 DELETE FROM t2 WHERE a = 'c'; | |
458 SELECT a FROM t2 WHERE b = X'ABCD'; | |
459 } | |
460 } {a b d} | |
461 do_test alter2-10.4 { | |
462 execsql { | |
463 SELECT count(b) FROM t2 WHERE b = X'ABCD'; | |
464 } | |
465 } {3} | |
466 } | |
467 | |
468 finish_test | |
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