1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
|
CREATE EXTENSION table_log;
SET client_min_messages TO warning;
-- drop old trigger
DROP TRIGGER test_log_chg ON test; -- ignore any error
ERROR: relation "test" does not exist
-- create demo table
DROP TABLE test; -- ignore any error
ERROR: table "test" does not exist
CREATE TABLE test (
id INT NOT NULL
PRIMARY KEY,
name VARCHAR(20) NOT NULL
);
-- create the table without data from demo table
DROP TABLE test_log; -- ignore any error
ERROR: table "test_log" does not exist
SELECT * INTO test_log FROM test LIMIT 0;
ALTER TABLE test_log ADD COLUMN trigger_mode VARCHAR(10);
ALTER TABLE test_log ADD COLUMN trigger_tuple VARCHAR(5);
ALTER TABLE test_log ADD COLUMN trigger_changed TIMESTAMPTZ;
ALTER TABLE test_log ADD COLUMN trigger_id BIGINT;
CREATE SEQUENCE test_log_id;
SELECT SETVAL('test_log_id', 1, FALSE);
setval
--------
1
(1 row)
ALTER TABLE test_log ALTER COLUMN trigger_id SET DEFAULT NEXTVAL('test_log_id');
-- create trigger
CREATE TRIGGER test_log_chg AFTER UPDATE OR INSERT OR DELETE ON test FOR EACH ROW
EXECUTE PROCEDURE table_log();
-- test trigger
INSERT INTO test VALUES (1, 'name');
SELECT id, name FROM test;
id | name
----+------
1 | name
(1 row)
SELECT id, name, trigger_mode, trigger_tuple, trigger_id FROM test_log;
id | name | trigger_mode | trigger_tuple | trigger_id
----+------+--------------+---------------+------------
1 | name | INSERT | new | 1
(1 row)
UPDATE test SET name='other name' WHERE id=1;
SELECT id, name FROM test;
id | name
----+------------
1 | other name
(1 row)
SELECT id, name, trigger_mode, trigger_tuple, trigger_id FROM test_log;
id | name | trigger_mode | trigger_tuple | trigger_id
----+------------+--------------+---------------+------------
1 | name | INSERT | new | 1
1 | name | UPDATE | old | 2
1 | other name | UPDATE | new | 3
(3 rows)
-- create restore table
SELECT table_log_restore_table('test', 'id', 'test_log', 'trigger_id', 'test_recover', NOW());
table_log_restore_table
-------------------------
test_recover
(1 row)
SELECT id, name FROM test_recover;
id | name
----+------------
1 | other name
(1 row)
DROP TABLE test;
DROP TABLE test_log;
DROP TABLE test_recover;
-- test table_log_init with all arguments
-- trigger_user and trigger_changed might differ, so ignore it
SET client_min_messages TO warning;
CREATE TABLE test(id integer, name text);
SELECT table_log_init(5, 'test');
table_log_init
----------------
(1 row)
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
INSERT INTO test VALUES(4, 'Jeanne D''Arc');
UPDATE test SET name = 'veronica' WHERE id = 3;
UPDATE test SET name = 'Jeanne D''Arc updated' WHERE id = 4;
DELETE FROM test WHERE id = 1;
SELECT id, name, trigger_mode, trigger_tuple, trigger_id FROM test_log;
id | name | trigger_mode | trigger_tuple | trigger_id
----+----------------------+--------------+---------------+------------
1 | joe | INSERT | new | 1
2 | barney | INSERT | new | 2
3 | monica | INSERT | new | 3
4 | Jeanne D'Arc | INSERT | new | 4
3 | monica | UPDATE | old | 5
3 | veronica | UPDATE | new | 6
4 | Jeanne D'Arc | UPDATE | old | 7
4 | Jeanne D'Arc updated | UPDATE | new | 8
1 | joe | DELETE | old | 9
(9 rows)
DROP TABLE test;
DROP TABLE test_log;
DROP SEQUENCE test_log_seq;
CREATE TABLE test(id integer, name text);
SELECT table_log_init(4, 'test');
table_log_init
----------------
(1 row)
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
INSERT INTO test VALUES(4, 'Jeanne D''Arc');
UPDATE test SET name = 'veronica' WHERE id = 3;
UPDATE test SET name = 'Jeanne D''Arc updated' WHERE id = 4;
DELETE FROM test WHERE id = 1;
SELECT id, name, trigger_mode, trigger_tuple, trigger_id FROM test_log;
id | name | trigger_mode | trigger_tuple | trigger_id
----+----------------------+--------------+---------------+------------
1 | joe | INSERT | new | 1
2 | barney | INSERT | new | 2
3 | monica | INSERT | new | 3
4 | Jeanne D'Arc | INSERT | new | 4
3 | monica | UPDATE | old | 5
3 | veronica | UPDATE | new | 6
4 | Jeanne D'Arc | UPDATE | old | 7
4 | Jeanne D'Arc updated | UPDATE | new | 8
1 | joe | DELETE | old | 9
(9 rows)
DROP TABLE test;
DROP TABLE test_log;
DROP SEQUENCE test_log_seq;
CREATE TABLE test(id integer, name text);
SELECT table_log_init(3, 'test');
table_log_init
----------------
(1 row)
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
INSERT INTO test VALUES(4, 'Jeanne D''Arc');
UPDATE test SET name = 'veronica' WHERE id = 3;
UPDATE test SET name = 'Jeanne D''Arc updated' WHERE id = 4;
DELETE FROM test WHERE id = 1;
SELECT id, name, trigger_mode, trigger_tuple FROM test_log;
id | name | trigger_mode | trigger_tuple
----+----------------------+--------------+---------------
1 | joe | INSERT | new
2 | barney | INSERT | new
3 | monica | INSERT | new
4 | Jeanne D'Arc | INSERT | new
3 | monica | UPDATE | old
3 | veronica | UPDATE | new
4 | Jeanne D'Arc | UPDATE | old
4 | Jeanne D'Arc updated | UPDATE | new
1 | joe | DELETE | old
(9 rows)
DROP TABLE test;
DROP TABLE test_log;
-- Check table_log_restore_table()
CREATE TABLE test(id integer, name text);
ALTER TABLE test ADD PRIMARY KEY(id);
SELECT table_log_init(5, 'test');
table_log_init
----------------
(1 row)
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
INSERT INTO test VALUES(4, 'Jeanne D''Arc');
UPDATE test SET name = 'veronica' WHERE id = 3;
UPDATE test SET name = 'Jeanne D''Arc updated' WHERE id = 4;
DELETE FROM test WHERE id = 1;
SELECT table_log_restore_table('test', 'id', 'test_log', 'trigger_id', 'test_recover', NOW(), '2', NULL::int, 1);
table_log_restore_table
-------------------------
test_recover
(1 row)
SELECT id, name FROM test_recover;
id | name
----+--------
2 | barney
(1 row)
DROP TABLE test;
DROP TABLE test_log;
DROP TABLE test_recover;
DROP SEQUENCE test_log_seq;
-- Check partition support with auto-generated
-- log table name.
CREATE TABLE test(id integer, name text);
ALTER TABLE test ADD PRIMARY KEY(id);
SELECT table_log_init(5, 'public', 'test', 'public', NULL, 'PARTITION');
table_log_init
----------------
(1 row)
SET table_log.active_partition = 0;
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
SET table_log.active_partition = 1;
UPDATE test SET name = 'veronica' WHERE id = 3;
DELETE FROM test WHERE id = 1;
SELECT id, name FROM test_log;
id | name
----+----------
1 | joe
2 | barney
3 | monica
3 | monica
3 | veronica
1 | joe
(6 rows)
SELECT id, name FROM test_log_0;
id | name
----+--------
1 | joe
2 | barney
3 | monica
(3 rows)
SELECT id, name FROM test_log_1;
id | name
----+----------
3 | monica
3 | veronica
1 | joe
(3 rows)
--
-- NOTE: since we use partitioning here, we use the special log
-- view to restore the data with id = 2
--
SELECT table_log_restore_table('test', 'id', 'test_log', 'trigger_id', 'test_recover', NOW(), '3', NULL::int, 1);
table_log_restore_table
-------------------------
test_recover
(1 row)
SELECT id, name FROM test_recover;
id | name
----+----------
3 | veronica
(1 row)
DROP TABLE test;
DROP VIEW test_log;
DROP TABLE test_log_0;
DROP TABLE test_log_1;
DROP TABLE test_recover;
DROP SEQUENCE test_log_seq;
--
-- Check with schema-qualified restore and log table
--
CREATE SCHEMA log;
CREATE TABLE test(id integer, name text);
ALTER TABLE test ADD PRIMARY KEY(id);
SELECT table_log_init(5, 'public', 'test', 'log', NULL, 'PARTITION');
table_log_init
----------------
(1 row)
SET table_log.active_partition = 0;
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
SET table_log.active_partition = 1;
UPDATE test SET name = 'veronica' WHERE id = 3;
SELECT * FROM test;
id | name
----+----------
1 | joe
2 | barney
3 | veronica
(3 rows)
DELETE FROM test WHERE id = 1;
SELECT * FROM test;
id | name
----+----------
2 | barney
3 | veronica
(2 rows)
SELECT id, name FROM log.test_log;
id | name
----+----------
1 | joe
2 | barney
3 | monica
3 | monica
3 | veronica
1 | joe
(6 rows)
SELECT id, name FROM log.test_log_0;
id | name
----+--------
1 | joe
2 | barney
3 | monica
(3 rows)
SELECT id, name FROM log.test_log_1;
id | name
----+----------
3 | monica
3 | veronica
1 | joe
(3 rows)
--
-- NOTE: since we use partitioning here, we use the special log
-- view to restore the data with id = 2
--
SELECT table_log_restore_table('test', 'id', 'log.test_log', 'trigger_id', 'log.test_recover', NOW(), '3', NULL::int, 1);
table_log_restore_table
-------------------------
log.test_recover
(1 row)
SELECT id, name FROM log.test_recover;
id | name
----+----------
3 | veronica
(1 row)
DROP SCHEMA log CASCADE;
DROP TABLE test;
--
-- Test with a schema-qualified and case sensitive log and
-- restore table
--
CREATE SCHEMA log;
CREATE TABLE test(id integer, name text);
ALTER TABLE test ADD PRIMARY KEY(id);
SELECT table_log_init(5, 'public', 'test', 'log', 'Test', 'PARTITION');
table_log_init
----------------
(1 row)
-- Check for log partitions
SELECT 'log."Test_0"'::regclass;
regclass
--------------
log."Test_0"
(1 row)
SELECT 'log."Test_1"'::regclass;
regclass
--------------
log."Test_1"
(1 row)
SET table_log.active_partition = 0;
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
SET table_log.active_partition = 1;
UPDATE test SET name = 'veronica' WHERE id = 3;
SELECT * FROM test;
id | name
----+----------
1 | joe
2 | barney
3 | veronica
(3 rows)
DELETE FROM test WHERE id = 1;
SELECT * FROM test;
id | name
----+----------
2 | barney
3 | veronica
(2 rows)
SELECT id, name FROM log."Test";
id | name
----+----------
1 | joe
2 | barney
3 | monica
3 | monica
3 | veronica
1 | joe
(6 rows)
SELECT id, name FROM log."Test_0";
id | name
----+--------
1 | joe
2 | barney
3 | monica
(3 rows)
SELECT id, name FROM log."Test_1";
id | name
----+----------
3 | monica
3 | veronica
1 | joe
(3 rows)
--
-- NOTE: since we use partitioning here, we use the special log
-- view to restore the data with id = 2
--
SELECT table_log_restore_table('test', 'id', 'log."Test"', 'trigger_id', 'log."Test_recover"', NOW(), '3', NULL::int, 1);
table_log_restore_table
-------------------------
log."Test_recover"
(1 row)
SELECT id, name FROM log."Test_recover";
id | name
----+----------
3 | veronica
(1 row)
DROP SCHEMA log CASCADE;
DROP TABLE test;
--
-- Test basic log mode
--
CREATE SCHEMA log;
CREATE TABLE test(id integer, name text);
ALTER TABLE test ADD PRIMARY KEY(id);
-- this should fail, no trigger actions specified
SELECT table_log_init(5, 'public', 'test', 'log', NULL, 'PARTITION', true, '{}');
ERROR: table_log_init: at least one trigger action must be specified
-- this should succeed, but leave out inserts
-- generate the log table this time...
SELECT table_log_init(5, 'public', 'test', 'log', NULL, 'PARTITION', true, '{UPDATE, DELETE}');
table_log_init
----------------
(1 row)
-- Log partitions created?
SELECT 'log.test_log_0'::regclass;
regclass
----------------
log.test_log_0
(1 row)
SELECT 'log.test_log_1'::regclass;
regclass
----------------
log.test_log_1
(1 row)
SET table_log.active_partition = 0;
INSERT INTO test VALUES(1, 'joe');
INSERT INTO test VALUES(2, 'barney');
INSERT INTO test VALUES(3, 'monica');
SET table_log.active_partition = 1;
UPDATE test SET name = 'veronica' WHERE id = 3;
SELECT * FROM test;
id | name
----+----------
1 | joe
2 | barney
3 | veronica
(3 rows)
DELETE FROM test WHERE id = 1;
SELECT * FROM test;
id | name
----+----------
2 | barney
3 | veronica
(2 rows)
-- UPDATE logged only, but only old tuples
SELECT id, name FROM log.test_log;
id | name
----+--------
3 | monica
1 | joe
(2 rows)
SELECT id, name FROM log.test_log_0;
id | name
----+------
(0 rows)
SELECT id, name FROM log.test_log_1;
id | name
----+--------
3 | monica
1 | joe
(2 rows)
-- NOTE:
-- We don't test table_log_restore_table() at this point, since
-- restore from data collected by table_log_basic() is not yet supported.
DROP SCHEMA log CASCADE;
DROP TABLE test;
RESET client_min_messages;
|
