3 -- Constraints can be specified with:
6 -- - PRIMARY KEY clauses
11 -- directory paths are passed to us in environment variables
12 \getenv abs_srcdir PG_ABS_SRCDIR
18 CREATE TABLE DEFAULT_TBL (i int DEFAULT 100,
19 x text DEFAULT 'vadim', f float8 DEFAULT 123.456);
21 INSERT INTO DEFAULT_TBL VALUES (1, 'thomas', 57.0613);
22 INSERT INTO DEFAULT_TBL VALUES (1, 'bruce');
23 INSERT INTO DEFAULT_TBL (i, f) VALUES (2, 987.654);
24 INSERT INTO DEFAULT_TBL (x) VALUES ('marc');
25 INSERT INTO DEFAULT_TBL VALUES (3, null, 1.0);
27 SELECT * FROM DEFAULT_TBL;
29 CREATE SEQUENCE DEFAULT_SEQ;
31 CREATE TABLE DEFAULTEXPR_TBL (i1 int DEFAULT 100 + (200-199) * 2,
32 i2 int DEFAULT nextval('default_seq'));
34 INSERT INTO DEFAULTEXPR_TBL VALUES (-1, -2);
35 INSERT INTO DEFAULTEXPR_TBL (i1) VALUES (-3);
36 INSERT INTO DEFAULTEXPR_TBL (i2) VALUES (-4);
37 INSERT INTO DEFAULTEXPR_TBL (i2) VALUES (NULL);
39 SELECT * FROM DEFAULTEXPR_TBL;
42 -- test for extraneous comma
43 CREATE TABLE error_tbl (i int DEFAULT (100, ));
44 -- this will fail because gram.y uses b_expr not a_expr for defaults,
45 -- to avoid a shift/reduce conflict that arises from NOT NULL being
46 -- part of the column definition syntax:
47 CREATE TABLE error_tbl (b1 bool DEFAULT 1 IN (1, 2));
48 -- this should work, however:
49 CREATE TABLE error_tbl (b1 bool DEFAULT (1 IN (1, 2)));
57 CREATE TABLE CHECK_TBL (x int,
58 CONSTRAINT CHECK_CON CHECK (x > 3));
60 INSERT INTO CHECK_TBL VALUES (5);
61 INSERT INTO CHECK_TBL VALUES (4);
62 INSERT INTO CHECK_TBL VALUES (3);
63 INSERT INTO CHECK_TBL VALUES (2);
64 INSERT INTO CHECK_TBL VALUES (6);
65 INSERT INTO CHECK_TBL VALUES (1);
67 SELECT * FROM CHECK_TBL;
69 CREATE SEQUENCE CHECK_SEQ;
71 CREATE TABLE CHECK2_TBL (x int, y text, z int,
72 CONSTRAINT SEQUENCE_CON
73 CHECK (x > 3 and y <> 'check failed' and z < 8));
75 INSERT INTO CHECK2_TBL VALUES (4, 'check ok', -2);
76 INSERT INTO CHECK2_TBL VALUES (1, 'x check failed', -2);
77 INSERT INTO CHECK2_TBL VALUES (5, 'z check failed', 10);
78 INSERT INTO CHECK2_TBL VALUES (0, 'check failed', -2);
79 INSERT INTO CHECK2_TBL VALUES (6, 'check failed', 11);
80 INSERT INTO CHECK2_TBL VALUES (7, 'check ok', 7);
82 SELECT * from CHECK2_TBL;
85 -- Check constraints on INSERT
88 CREATE SEQUENCE INSERT_SEQ;
90 CREATE TABLE INSERT_TBL (x INT DEFAULT nextval('insert_seq'),
91 y TEXT DEFAULT '-NULL-',
92 z INT DEFAULT -1 * currval('insert_seq'),
93 CONSTRAINT INSERT_TBL_CON CHECK (x >= 3 AND y <> 'check failed' AND x < 8),
96 INSERT INTO INSERT_TBL(x,z) VALUES (2, -2);
98 SELECT * FROM INSERT_TBL;
100 SELECT 'one' AS one, nextval('insert_seq');
102 INSERT INTO INSERT_TBL(y) VALUES ('Y');
103 INSERT INTO INSERT_TBL(y) VALUES ('Y');
104 INSERT INTO INSERT_TBL(x,z) VALUES (1, -2);
105 INSERT INTO INSERT_TBL(z,x) VALUES (-7, 7);
106 INSERT INTO INSERT_TBL VALUES (5, 'check failed', -5);
107 INSERT INTO INSERT_TBL VALUES (7, '!check failed', -7);
108 INSERT INTO INSERT_TBL(y) VALUES ('-!NULL-');
110 SELECT * FROM INSERT_TBL;
112 INSERT INTO INSERT_TBL(y,z) VALUES ('check failed', 4);
113 INSERT INTO INSERT_TBL(x,y) VALUES (5, 'check failed');
114 INSERT INTO INSERT_TBL(x,y) VALUES (5, '!check failed');
115 INSERT INTO INSERT_TBL(y) VALUES ('-!NULL-');
117 SELECT * FROM INSERT_TBL;
119 SELECT 'seven' AS one, nextval('insert_seq');
121 INSERT INTO INSERT_TBL(y) VALUES ('Y');
123 SELECT 'eight' AS one, currval('insert_seq');
125 -- According to SQL, it is OK to insert a record that gives rise to NULL
126 -- constraint-condition results. Postgres used to reject this, but it
128 INSERT INTO INSERT_TBL VALUES (null, null, null);
130 SELECT * FROM INSERT_TBL;
133 -- Check constraints on system columns
136 CREATE TABLE SYS_COL_CHECK_TBL (city text, state text, is_capital bool,
138 CHECK (NOT (is_capital AND tableoid::regclass::text = 'sys_col_check_tbl')));
140 INSERT INTO SYS_COL_CHECK_TBL VALUES ('Seattle', 'Washington', false, 100);
141 INSERT INTO SYS_COL_CHECK_TBL VALUES ('Olympia', 'Washington', true, 100);
143 SELECT *, tableoid::regclass::text FROM SYS_COL_CHECK_TBL;
145 DROP TABLE SYS_COL_CHECK_TBL;
148 -- Check constraints on system columns other then TableOid should return error
150 CREATE TABLE SYS_COL_CHECK_TBL (city text, state text, is_capital bool,
152 CHECK (NOT (is_capital AND ctid::text = 'sys_col_check_tbl')));
155 -- Check inheritance of defaults and constraints
158 CREATE TABLE INSERT_CHILD (cx INT default 42,
159 cy INT CHECK (cy > x))
160 INHERITS (INSERT_TBL);
162 INSERT INTO INSERT_CHILD(x,z,cy) VALUES (7,-7,11);
163 INSERT INTO INSERT_CHILD(x,z,cy) VALUES (7,-7,6);
164 INSERT INTO INSERT_CHILD(x,z,cy) VALUES (6,-7,7);
165 INSERT INTO INSERT_CHILD(x,y,z,cy) VALUES (6,'check failed',-6,7);
167 SELECT * FROM INSERT_CHILD;
169 DROP TABLE INSERT_CHILD;
172 -- Check NO INHERIT type of constraints and inheritance
175 CREATE TABLE ATACC1 (TEST INT
176 CHECK (TEST > 0) NO INHERIT);
178 CREATE TABLE ATACC2 (TEST2 INT) INHERITS (ATACC1);
179 -- check constraint is not there on child
180 INSERT INTO ATACC2 (TEST) VALUES (-3);
181 -- check constraint is there on parent
182 INSERT INTO ATACC1 (TEST) VALUES (-3);
183 DROP TABLE ATACC1 CASCADE;
185 CREATE TABLE ATACC1 (TEST INT, TEST2 INT
186 CHECK (TEST > 0), CHECK (TEST2 > 10) NO INHERIT);
188 CREATE TABLE ATACC2 () INHERITS (ATACC1);
189 -- check constraint is there on child
190 INSERT INTO ATACC2 (TEST) VALUES (-3);
191 -- check constraint is there on parent
192 INSERT INTO ATACC1 (TEST) VALUES (-3);
193 -- check constraint is not there on child
194 INSERT INTO ATACC2 (TEST2) VALUES (3);
195 -- check constraint is there on parent
196 INSERT INTO ATACC1 (TEST2) VALUES (3);
197 DROP TABLE ATACC1 CASCADE;
200 -- Check constraints on INSERT INTO
203 DELETE FROM INSERT_TBL;
205 ALTER SEQUENCE INSERT_SEQ RESTART WITH 4;
207 CREATE TEMP TABLE tmp (xd INT, yd TEXT, zd INT);
209 INSERT INTO tmp VALUES (null, 'Y', null);
210 INSERT INTO tmp VALUES (5, '!check failed', null);
211 INSERT INTO tmp VALUES (null, 'try again', null);
212 INSERT INTO INSERT_TBL(y) select yd from tmp;
214 SELECT * FROM INSERT_TBL;
216 INSERT INTO INSERT_TBL SELECT * FROM tmp WHERE yd = 'try again';
217 INSERT INTO INSERT_TBL(y,z) SELECT yd, -7 FROM tmp WHERE yd = 'try again';
218 INSERT INTO INSERT_TBL(y,z) SELECT yd, -8 FROM tmp WHERE yd = 'try again';
220 SELECT * FROM INSERT_TBL;
225 -- Check constraints on UPDATE
228 UPDATE INSERT_TBL SET x = NULL WHERE x = 5;
229 UPDATE INSERT_TBL SET x = 6 WHERE x = 6;
230 UPDATE INSERT_TBL SET x = -z, z = -x;
231 UPDATE INSERT_TBL SET x = z, z = x;
233 SELECT * FROM INSERT_TBL;
235 -- DROP TABLE INSERT_TBL;
238 -- Check constraints on COPY FROM
241 CREATE TABLE COPY_TBL (x INT, y TEXT, z INT,
243 CHECK (x > 3 AND y <> 'check failed' AND x < 7 ));
245 \set filename :abs_srcdir '/data/constro.data'
246 COPY COPY_TBL FROM :'filename';
248 SELECT * FROM COPY_TBL;
250 \set filename :abs_srcdir '/data/constrf.data'
251 COPY COPY_TBL FROM :'filename';
253 SELECT * FROM COPY_TBL;
259 CREATE TABLE PRIMARY_TBL (i int PRIMARY KEY, t text);
261 INSERT INTO PRIMARY_TBL VALUES (1, 'one');
262 INSERT INTO PRIMARY_TBL VALUES (2, 'two');
263 INSERT INTO PRIMARY_TBL VALUES (1, 'three');
264 INSERT INTO PRIMARY_TBL VALUES (4, 'three');
265 INSERT INTO PRIMARY_TBL VALUES (5, 'one');
266 INSERT INTO PRIMARY_TBL (t) VALUES ('six');
268 SELECT * FROM PRIMARY_TBL;
270 DROP TABLE PRIMARY_TBL;
272 CREATE TABLE PRIMARY_TBL (i int, t text,
275 INSERT INTO PRIMARY_TBL VALUES (1, 'one');
276 INSERT INTO PRIMARY_TBL VALUES (2, 'two');
277 INSERT INTO PRIMARY_TBL VALUES (1, 'three');
278 INSERT INTO PRIMARY_TBL VALUES (4, 'three');
279 INSERT INTO PRIMARY_TBL VALUES (5, 'one');
280 INSERT INTO PRIMARY_TBL (t) VALUES ('six');
282 SELECT * FROM PRIMARY_TBL;
284 DROP TABLE PRIMARY_TBL;
290 CREATE TABLE UNIQUE_TBL (i int UNIQUE, t text);
292 INSERT INTO UNIQUE_TBL VALUES (1, 'one');
293 INSERT INTO UNIQUE_TBL VALUES (2, 'two');
294 INSERT INTO UNIQUE_TBL VALUES (1, 'three');
295 INSERT INTO UNIQUE_TBL VALUES (4, 'four');
296 INSERT INTO UNIQUE_TBL VALUES (5, 'one');
297 INSERT INTO UNIQUE_TBL (t) VALUES ('six');
298 INSERT INTO UNIQUE_TBL (t) VALUES ('seven');
300 INSERT INTO UNIQUE_TBL VALUES (5, 'five-upsert-insert') ON CONFLICT (i) DO UPDATE SET t = 'five-upsert-update';
301 INSERT INTO UNIQUE_TBL VALUES (6, 'six-upsert-insert') ON CONFLICT (i) DO UPDATE SET t = 'six-upsert-update';
303 INSERT INTO UNIQUE_TBL VALUES (1, 'a'), (2, 'b'), (2, 'b') ON CONFLICT (i) DO UPDATE SET t = 'fails';
305 SELECT * FROM UNIQUE_TBL;
307 DROP TABLE UNIQUE_TBL;
309 CREATE TABLE UNIQUE_TBL (i int UNIQUE NULLS NOT DISTINCT, t text);
311 INSERT INTO UNIQUE_TBL VALUES (1, 'one');
312 INSERT INTO UNIQUE_TBL VALUES (2, 'two');
313 INSERT INTO UNIQUE_TBL VALUES (1, 'three'); -- fail
314 INSERT INTO UNIQUE_TBL VALUES (4, 'four');
315 INSERT INTO UNIQUE_TBL VALUES (5, 'one');
316 INSERT INTO UNIQUE_TBL (t) VALUES ('six');
317 INSERT INTO UNIQUE_TBL (t) VALUES ('seven'); -- fail
318 INSERT INTO UNIQUE_TBL (t) VALUES ('eight') ON CONFLICT DO NOTHING; -- no-op
320 SELECT * FROM UNIQUE_TBL;
322 DROP TABLE UNIQUE_TBL;
324 CREATE TABLE UNIQUE_TBL (i int, t text,
327 INSERT INTO UNIQUE_TBL VALUES (1, 'one');
328 INSERT INTO UNIQUE_TBL VALUES (2, 'two');
329 INSERT INTO UNIQUE_TBL VALUES (1, 'three');
330 INSERT INTO UNIQUE_TBL VALUES (1, 'one');
331 INSERT INTO UNIQUE_TBL VALUES (5, 'one');
332 INSERT INTO UNIQUE_TBL (t) VALUES ('six');
334 SELECT * FROM UNIQUE_TBL;
336 DROP TABLE UNIQUE_TBL;
339 -- Deferrable unique constraints
342 CREATE TABLE unique_tbl (i int UNIQUE DEFERRABLE, t text);
344 INSERT INTO unique_tbl VALUES (0, 'one');
345 INSERT INTO unique_tbl VALUES (1, 'two');
346 INSERT INTO unique_tbl VALUES (2, 'tree');
347 INSERT INTO unique_tbl VALUES (3, 'four');
348 INSERT INTO unique_tbl VALUES (4, 'five');
352 -- default is immediate so this should fail right away
353 UPDATE unique_tbl SET i = 1 WHERE i = 0;
357 -- check is done at end of statement, so this should succeed
358 UPDATE unique_tbl SET i = i+1;
360 SELECT * FROM unique_tbl;
362 -- explicitly defer the constraint
365 SET CONSTRAINTS unique_tbl_i_key DEFERRED;
367 INSERT INTO unique_tbl VALUES (3, 'three');
368 DELETE FROM unique_tbl WHERE t = 'tree'; -- makes constraint valid again
370 COMMIT; -- should succeed
372 SELECT * FROM unique_tbl;
374 -- try adding an initially deferred constraint
375 ALTER TABLE unique_tbl DROP CONSTRAINT unique_tbl_i_key;
376 ALTER TABLE unique_tbl ADD CONSTRAINT unique_tbl_i_key
377 UNIQUE (i) DEFERRABLE INITIALLY DEFERRED;
381 INSERT INTO unique_tbl VALUES (1, 'five');
382 INSERT INTO unique_tbl VALUES (5, 'one');
383 UPDATE unique_tbl SET i = 4 WHERE i = 2;
384 UPDATE unique_tbl SET i = 2 WHERE i = 4 AND t = 'four';
385 DELETE FROM unique_tbl WHERE i = 1 AND t = 'one';
386 DELETE FROM unique_tbl WHERE i = 5 AND t = 'five';
390 SELECT * FROM unique_tbl;
392 -- should fail at commit-time
394 INSERT INTO unique_tbl VALUES (3, 'Three'); -- should succeed for now
395 COMMIT; -- should fail
397 -- make constraint check immediate
400 SET CONSTRAINTS ALL IMMEDIATE;
402 INSERT INTO unique_tbl VALUES (3, 'Three'); -- should fail
406 -- forced check when SET CONSTRAINTS is called
409 SET CONSTRAINTS ALL DEFERRED;
411 INSERT INTO unique_tbl VALUES (3, 'Three'); -- should succeed for now
413 SET CONSTRAINTS ALL IMMEDIATE; -- should fail
417 -- test deferrable UNIQUE with a partitioned table
418 CREATE TABLE parted_uniq_tbl (i int UNIQUE DEFERRABLE) partition by range (i);
419 CREATE TABLE parted_uniq_tbl_1 PARTITION OF parted_uniq_tbl FOR VALUES FROM (0) TO (10);
420 CREATE TABLE parted_uniq_tbl_2 PARTITION OF parted_uniq_tbl FOR VALUES FROM (20) TO (30);
421 SELECT conname, conrelid::regclass FROM pg_constraint
422 WHERE conname LIKE 'parted_uniq%' ORDER BY conname;
424 INSERT INTO parted_uniq_tbl VALUES (1);
426 INSERT INTO parted_uniq_tbl VALUES (1); -- unique violation
428 SET CONSTRAINTS parted_uniq_tbl_i_key DEFERRED;
429 INSERT INTO parted_uniq_tbl VALUES (1); -- OK now, fail at commit
431 DROP TABLE parted_uniq_tbl;
433 -- test naming a constraint in a partition when a conflict exists
434 CREATE TABLE parted_fk_naming (
435 id bigint NOT NULL default 1,
437 CONSTRAINT dummy_constr FOREIGN KEY (id_abc)
438 REFERENCES parted_fk_naming (id),
441 PARTITION BY LIST (id);
442 CREATE TABLE parted_fk_naming_1 (
443 id bigint NOT NULL default 1,
446 CONSTRAINT dummy_constr CHECK (true)
448 ALTER TABLE parted_fk_naming ATTACH PARTITION parted_fk_naming_1 FOR VALUES IN ('1');
449 SELECT conname FROM pg_constraint WHERE conrelid = 'parted_fk_naming_1'::regclass AND contype = 'f';
450 DROP TABLE parted_fk_naming;
453 -- Test various ways to create primary keys on partitions, linked to unique
454 -- indexes (without constraints) on the partitioned table. Ideally these should
455 -- fail, but we don't dare change released behavior, so instead cope with it at
457 CREATE TEMP TABLE t (a integer, b integer) PARTITION BY HASH (a, b);
458 CREATE TEMP TABLE tp (a integer, b integer, PRIMARY KEY (a, b), UNIQUE (b, a));
459 ALTER TABLE t ATTACH PARTITION tp FOR VALUES WITH (MODULUS 1, REMAINDER 0);
460 CREATE UNIQUE INDEX t_a_idx ON t (a, b);
461 CREATE UNIQUE INDEX t_b_idx ON t (b, a);
462 ALTER INDEX t_a_idx ATTACH PARTITION tp_pkey;
463 ALTER INDEX t_b_idx ATTACH PARTITION tp_b_a_key;
464 SELECT conname, conparentid, conislocal, coninhcount
465 FROM pg_constraint WHERE conname IN ('tp_pkey', 'tp_b_a_key')
466 ORDER BY conname DESC;
467 ALTER TABLE t DETACH PARTITION tp;
470 CREATE TEMP TABLE t (a integer) PARTITION BY LIST (a);
471 CREATE TEMP TABLE tp (a integer PRIMARY KEY);
472 CREATE UNIQUE INDEX t_a_idx ON t (a);
473 ALTER TABLE t ATTACH PARTITION tp FOR VALUES IN (1);
474 ALTER TABLE t DETACH PARTITION tp;
477 CREATE TEMP TABLE t (a integer) PARTITION BY LIST (a);
478 CREATE TEMP TABLE tp (a integer PRIMARY KEY);
479 CREATE UNIQUE INDEX t_a_idx ON ONLY t (a);
480 ALTER TABLE t ATTACH PARTITION tp FOR VALUES IN (1);
481 ALTER TABLE t DETACH PARTITION tp;
484 CREATE TABLE regress_constr_partitioned (a integer) PARTITION BY LIST (a);
485 CREATE TABLE regress_constr_partition1 PARTITION OF regress_constr_partitioned FOR VALUES IN (1);
486 ALTER TABLE regress_constr_partition1 ADD PRIMARY KEY (a);
487 CREATE UNIQUE INDEX ON regress_constr_partitioned (a);
489 ALTER TABLE regress_constr_partitioned DETACH PARTITION regress_constr_partition1;
491 -- Leave this one in funny state for pg_upgrade testing
493 -- test a HOT update that invalidates the conflicting tuple.
494 -- the trigger should still fire and catch the violation
498 INSERT INTO unique_tbl VALUES (3, 'Three'); -- should succeed for now
499 UPDATE unique_tbl SET t = 'THREE' WHERE i = 3 AND t = 'Three';
501 COMMIT; -- should fail
503 SELECT * FROM unique_tbl;
505 -- test a HOT update that modifies the newly inserted tuple,
506 -- but should succeed because we then remove the other conflicting tuple.
510 INSERT INTO unique_tbl VALUES(3, 'tree'); -- should succeed for now
511 UPDATE unique_tbl SET t = 'threex' WHERE t = 'tree';
512 DELETE FROM unique_tbl WHERE t = 'three';
514 SELECT * FROM unique_tbl;
518 SELECT * FROM unique_tbl;
520 DROP TABLE unique_tbl;
523 -- EXCLUDE constraints
526 CREATE TABLE circles (
530 (c1 WITH &&, (c2::circle) WITH &&)
531 WHERE (circle_center(c1) <> '(0,0)')
534 -- these should succeed because they don't match the index predicate
535 INSERT INTO circles VALUES('<(0,0), 5>', '<(0,0), 5>');
536 INSERT INTO circles VALUES('<(0,0), 5>', '<(0,0), 4>');
539 INSERT INTO circles VALUES('<(10,10), 10>', '<(0,0), 5>');
541 INSERT INTO circles VALUES('<(20,20), 10>', '<(0,0), 4>');
542 -- succeed, because violation is ignored
543 INSERT INTO circles VALUES('<(20,20), 10>', '<(0,0), 4>')
544 ON CONFLICT ON CONSTRAINT circles_c1_c2_excl DO NOTHING;
545 -- fail, because DO UPDATE variant requires unique index
546 INSERT INTO circles VALUES('<(20,20), 10>', '<(0,0), 4>')
547 ON CONFLICT ON CONSTRAINT circles_c1_c2_excl DO UPDATE SET c2 = EXCLUDED.c2;
548 -- succeed because c1 doesn't overlap
549 INSERT INTO circles VALUES('<(20,20), 1>', '<(0,0), 5>');
550 -- succeed because c2 doesn't overlap
551 INSERT INTO circles VALUES('<(20,20), 10>', '<(10,10), 5>');
553 -- should fail on existing data without the WHERE clause
554 ALTER TABLE circles ADD EXCLUDE USING gist
555 (c1 WITH &&, (c2::circle) WITH &&);
557 -- try reindexing an existing constraint
558 REINDEX INDEX circles_c1_c2_excl;
562 -- Check deferred exclusion constraint
564 CREATE TABLE deferred_excl (
567 CONSTRAINT deferred_excl_con EXCLUDE (f1 WITH =) INITIALLY DEFERRED
570 INSERT INTO deferred_excl VALUES(1);
571 INSERT INTO deferred_excl VALUES(2);
572 INSERT INTO deferred_excl VALUES(1); -- fail
573 INSERT INTO deferred_excl VALUES(1) ON CONFLICT ON CONSTRAINT deferred_excl_con DO NOTHING; -- fail
575 INSERT INTO deferred_excl VALUES(2); -- no fail here
576 COMMIT; -- should fail here
578 INSERT INTO deferred_excl VALUES(3);
579 INSERT INTO deferred_excl VALUES(3); -- no fail here
580 COMMIT; -- should fail here
582 -- bug #13148: deferred constraint versus HOT update
584 INSERT INTO deferred_excl VALUES(2, 1); -- no fail here
585 DELETE FROM deferred_excl WHERE f1 = 2 AND f2 IS NULL; -- remove old row
586 UPDATE deferred_excl SET f2 = 2 WHERE f1 = 2;
587 COMMIT; -- should not fail
589 SELECT * FROM deferred_excl;
591 ALTER TABLE deferred_excl DROP CONSTRAINT deferred_excl_con;
593 -- This should fail, but worth testing because of HOT updates
594 UPDATE deferred_excl SET f1 = 3;
596 ALTER TABLE deferred_excl ADD EXCLUDE (f1 WITH =);
598 DROP TABLE deferred_excl;
601 -- Setup a low-level role to enforce non-superuser checks.
602 CREATE ROLE regress_constraint_comments;
603 SET SESSION AUTHORIZATION regress_constraint_comments;
605 CREATE TABLE constraint_comments_tbl (a int CONSTRAINT the_constraint CHECK (a > 0));
606 CREATE DOMAIN constraint_comments_dom AS int CONSTRAINT the_constraint CHECK (value > 0);
608 COMMENT ON CONSTRAINT the_constraint ON constraint_comments_tbl IS 'yes, the comment';
609 COMMENT ON CONSTRAINT the_constraint ON DOMAIN constraint_comments_dom IS 'yes, another comment';
611 -- no such constraint
612 COMMENT ON CONSTRAINT no_constraint ON constraint_comments_tbl IS 'yes, the comment';
613 COMMENT ON CONSTRAINT no_constraint ON DOMAIN constraint_comments_dom IS 'yes, another comment';
615 -- no such table/domain
616 COMMENT ON CONSTRAINT the_constraint ON no_comments_tbl IS 'bad comment';
617 COMMENT ON CONSTRAINT the_constraint ON DOMAIN no_comments_dom IS 'another bad comment';
619 COMMENT ON CONSTRAINT the_constraint ON constraint_comments_tbl IS NULL;
620 COMMENT ON CONSTRAINT the_constraint ON DOMAIN constraint_comments_dom IS NULL;
623 RESET SESSION AUTHORIZATION;
624 CREATE ROLE regress_constraint_comments_noaccess;
625 SET SESSION AUTHORIZATION regress_constraint_comments_noaccess;
626 COMMENT ON CONSTRAINT the_constraint ON constraint_comments_tbl IS 'no, the comment';
627 COMMENT ON CONSTRAINT the_constraint ON DOMAIN constraint_comments_dom IS 'no, another comment';
628 RESET SESSION AUTHORIZATION;
630 DROP TABLE constraint_comments_tbl;
631 DROP DOMAIN constraint_comments_dom;
633 DROP ROLE regress_constraint_comments;
634 DROP ROLE regress_constraint_comments_noaccess;