postgresql/src/test/regress/sql/sequence.sql

---
--- test creation of SERIAL column
---

CREATE TABLE serialTest (f1 text, f2 serial);

INSERT INTO serialTest VALUES ('foo');
INSERT INTO serialTest VALUES ('bar');
INSERT INTO serialTest VALUES ('force', 100);
INSERT INTO serialTest VALUES ('wrong', NULL);

SELECT * FROM serialTest;

-- test smallserial / bigserial
CREATE TABLE serialTest2 (f1 text, f2 serial, f3 smallserial, f4 serial2,
  f5 bigserial, f6 serial8);

INSERT INTO serialTest2 (f1)
  VALUES ('test_defaults');

INSERT INTO serialTest2 (f1, f2, f3, f4, f5, f6)
  VALUES ('test_max_vals', 2147483647, 32767, 32767, 9223372036854775807,
          9223372036854775807),
         ('test_min_vals', -2147483648, -32768, -32768, -9223372036854775808,
          -9223372036854775808);

-- All these INSERTs should fail:
INSERT INTO serialTest2 (f1, f3)
  VALUES ('bogus', -32769);

INSERT INTO serialTest2 (f1, f4)
  VALUES ('bogus', -32769);

INSERT INTO serialTest2 (f1, f3)
  VALUES ('bogus', 32768);

INSERT INTO serialTest2 (f1, f4)
  VALUES ('bogus', 32768);

INSERT INTO serialTest2 (f1, f5)
  VALUES ('bogus', -9223372036854775809);

INSERT INTO serialTest2 (f1, f6)
  VALUES ('bogus', -9223372036854775809);

INSERT INTO serialTest2 (f1, f5)
  VALUES ('bogus', 9223372036854775808);

INSERT INTO serialTest2 (f1, f6)
  VALUES ('bogus', 9223372036854775808);

SELECT * FROM serialTest2 ORDER BY f2 ASC;

SELECT nextval('serialTest2_f2_seq');
SELECT nextval('serialTest2_f3_seq');
SELECT nextval('serialTest2_f4_seq');
SELECT nextval('serialTest2_f5_seq');
SELECT nextval('serialTest2_f6_seq');

-- basic sequence operations using both text and oid references
CREATE SEQUENCE sequence_test;
CREATE SEQUENCE IF NOT EXISTS sequence_test;

SELECT nextval('sequence_test'::text);
SELECT nextval('sequence_test'::regclass);
SELECT currval('sequence_test'::text);
SELECT currval('sequence_test'::regclass);
SELECT setval('sequence_test'::text, 32);
SELECT nextval('sequence_test'::regclass);
SELECT setval('sequence_test'::text, 99, false);
SELECT nextval('sequence_test'::regclass);
SELECT setval('sequence_test'::regclass, 32);
SELECT nextval('sequence_test'::text);
SELECT setval('sequence_test'::regclass, 99, false);
SELECT nextval('sequence_test'::text);
DISCARD SEQUENCES;
SELECT currval('sequence_test'::regclass);

DROP SEQUENCE sequence_test;

-- renaming sequences
CREATE SEQUENCE foo_seq;
ALTER TABLE foo_seq RENAME TO foo_seq_new;
SELECT * FROM foo_seq_new;
SELECT nextval('foo_seq_new');
SELECT nextval('foo_seq_new');
SELECT * FROM foo_seq_new;
DROP SEQUENCE foo_seq_new;

-- renaming serial sequences
ALTER TABLE serialtest_f2_seq RENAME TO serialtest_f2_foo;
INSERT INTO serialTest VALUES ('more');
SELECT * FROM serialTest;

--
-- Check dependencies of serial and ordinary sequences
--
CREATE TEMP SEQUENCE myseq2;
CREATE TEMP SEQUENCE myseq3;
CREATE TEMP TABLE t1 (
  f1 serial,
  f2 int DEFAULT nextval('myseq2'),
  f3 int DEFAULT nextval('myseq3'::text)
);
-- Both drops should fail, but with different error messages:
DROP SEQUENCE t1_f1_seq;
DROP SEQUENCE myseq2;
-- This however will work:
DROP SEQUENCE myseq3;
DROP TABLE t1;
-- Fails because no longer existent:
DROP SEQUENCE t1_f1_seq;
-- Now OK:
DROP SEQUENCE myseq2;

--
-- Alter sequence
--

ALTER SEQUENCE IF EXISTS sequence_test2 RESTART WITH 24
	 INCREMENT BY 4 MAXVALUE 36 MINVALUE 5 CYCLE;

CREATE SEQUENCE sequence_test2 START WITH 32;

SELECT nextval('sequence_test2');

ALTER SEQUENCE sequence_test2 RESTART WITH 24
	 INCREMENT BY 4 MAXVALUE 36 MINVALUE 5 CYCLE;
SELECT nextval('sequence_test2');
SELECT nextval('sequence_test2');
SELECT nextval('sequence_test2');
SELECT nextval('sequence_test2');
SELECT nextval('sequence_test2');

ALTER SEQUENCE sequence_test2 RESTART;

SELECT nextval('sequence_test2');
SELECT nextval('sequence_test2');
SELECT nextval('sequence_test2');


CREATE SEQUENCE sequence_test3;  -- not read from, to test is_called


-- Information schema
SELECT * FROM information_schema.sequences WHERE sequence_name IN
  ('sequence_test2', 'sequence_test3', 'serialtest2_f2_seq', 'serialtest2_f3_seq',
   'serialtest2_f4_seq', 'serialtest2_f5_seq', 'serialtest2_f6_seq')
  ORDER BY sequence_name ASC;

SELECT schemaname, sequencename, start_value, min_value, max_value, increment_by, cycle, cache_size, last_value
FROM pg_sequences
WHERE sequencename IN
  ('sequence_test2', 'sequence_test3', 'serialtest2_f2_seq', 'serialtest2_f3_seq',
   'serialtest2_f4_seq', 'serialtest2_f5_seq', 'serialtest2_f6_seq')
  ORDER BY sequencename ASC;

-- Test comments
COMMENT ON SEQUENCE asdf IS 'won''t work';
COMMENT ON SEQUENCE sequence_test2 IS 'will work';
COMMENT ON SEQUENCE sequence_test2 IS NULL;

-- Test lastval()
CREATE SEQUENCE seq;
SELECT nextval('seq');
SELECT lastval();
SELECT setval('seq', 99);
SELECT lastval();
DISCARD SEQUENCES;
SELECT lastval();

CREATE SEQUENCE seq2;
SELECT nextval('seq2');
SELECT lastval();

DROP SEQUENCE seq2;
-- should fail
SELECT lastval();

CREATE USER regress_seq_user;

-- privileges tests

-- nextval
BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT SELECT ON seq3 TO regress_seq_user;
SELECT nextval('seq3');
ROLLBACK;

BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT UPDATE ON seq3 TO regress_seq_user;
SELECT nextval('seq3');
ROLLBACK;

BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT USAGE ON seq3 TO regress_seq_user;
SELECT nextval('seq3');
ROLLBACK;

-- currval
BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
SELECT nextval('seq3');
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT SELECT ON seq3 TO regress_seq_user;
SELECT currval('seq3');
ROLLBACK;

BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
SELECT nextval('seq3');
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT UPDATE ON seq3 TO regress_seq_user;
SELECT currval('seq3');
ROLLBACK;

BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
SELECT nextval('seq3');
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT USAGE ON seq3 TO regress_seq_user;
SELECT currval('seq3');
ROLLBACK;

-- lastval
BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
SELECT nextval('seq3');
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT SELECT ON seq3 TO regress_seq_user;
SELECT lastval();
ROLLBACK;

BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
SELECT nextval('seq3');
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT UPDATE ON seq3 TO regress_seq_user;
SELECT lastval();
ROLLBACK;

BEGIN;
SET LOCAL SESSION AUTHORIZATION regress_seq_user;
CREATE SEQUENCE seq3;
SELECT nextval('seq3');
REVOKE ALL ON seq3 FROM regress_seq_user;
GRANT USAGE ON seq3 TO regress_seq_user;
SELECT lastval();
ROLLBACK;

-- Sequences should get wiped out as well:
DROP TABLE serialTest, serialTest2;

-- Make sure sequences are gone:
SELECT * FROM information_schema.sequences WHERE sequence_name IN
  ('sequence_test2', 'serialtest2_f2_seq', 'serialtest2_f3_seq',
   'serialtest2_f4_seq', 'serialtest2_f5_seq', 'serialtest2_f6_seq')
  ORDER BY sequence_name ASC;

DROP USER regress_seq_user;
DROP SEQUENCE seq;

-- cache tests
CREATE SEQUENCE test_seq1 CACHE 10;
SELECT nextval('test_seq1');
SELECT nextval('test_seq1');
SELECT nextval('test_seq1');

DROP SEQUENCE test_seq1;