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---
--- test creation of SERIAL column
---
CREATE TABLE serialTest (f1 text, f2 serial);
NOTICE: CREATE TABLE will create implicit sequence "serialtest_f2_seq" for "serial" column "serialtest.f2"
INSERT INTO serialTest VALUES ('foo');
INSERT INTO serialTest VALUES ('bar');
INSERT INTO serialTest VALUES ('force', 100);
INSERT INTO serialTest VALUES ('wrong', NULL);
ERROR: null value in column "f2" violates not-null constraint
SELECT * FROM serialTest;
f1 | f2
-------+-----
foo | 1
bar | 2
force | 100
(3 rows)
CREATE SEQUENCE sequence_test;
BEGIN;
SELECT nextval('sequence_test');
nextval
---------
1
(1 row)
DROP SEQUENCE sequence_test;
END;
-- renaming sequences
CREATE SEQUENCE foo_seq;
ALTER TABLE foo_seq RENAME TO foo_seq_new;
SELECT * FROM foo_seq_new;
sequence_name | last_value | increment_by | max_value | min_value | cache_value | log_cnt | is_cycled | is_called
---------------+------------+--------------+---------------------+-----------+-------------+---------+-----------+-----------
foo_seq | 1 | 1 | 9223372036854775807 | 1 | 1 | 1 | f | f
(1 row)
DROP SEQUENCE foo_seq_new;
--
-- Alter sequence
--
CREATE SEQUENCE sequence_test2 START WITH 32;
SELECT nextval('sequence_test2');
nextval
---------
32
(1 row)
ALTER SEQUENCE sequence_test2 RESTART WITH 16
INCREMENT BY 4 MAXVALUE 22 MINVALUE 5 CYCLE;
SELECT nextval('sequence_test2');
nextval
---------
16
(1 row)
SELECT nextval('sequence_test2');
nextval
---------
20
(1 row)
SELECT nextval('sequence_test2');
nextval
---------
5
(1 row)
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