Add a variant expected-output file for the sequence regression test, to cover
output that is seen when a checkpoint occurs at just the right time during the test. Per my report of 2008-08-31. This could be back-patched but I'm not sure it's worth the trouble.
This commit is contained in:
Tom Lane
parent
b153c09209
commit
bb3f839bfc
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---
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--- test creation of SERIAL column
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---
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CREATE TABLE serialTest (f1 text, f2 serial);
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NOTICE: CREATE TABLE will create implicit sequence "serialtest_f2_seq" for serial column "serialtest.f2"
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INSERT INTO serialTest VALUES ('foo');
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INSERT INTO serialTest VALUES ('bar');
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INSERT INTO serialTest VALUES ('force', 100);
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INSERT INTO serialTest VALUES ('wrong', NULL);
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ERROR: null value in column "f2" violates not-null constraint
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SELECT * FROM serialTest;
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f1 | f2
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-------+-----
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foo | 1
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bar | 2
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force | 100
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(3 rows)
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-- basic sequence operations using both text and oid references
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CREATE SEQUENCE sequence_test;
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SELECT nextval('sequence_test'::text);
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nextval
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---------
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1
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(1 row)
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SELECT nextval('sequence_test'::regclass);
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nextval
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---------
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2
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(1 row)
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SELECT currval('sequence_test'::text);
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currval
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---------
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2
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(1 row)
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SELECT currval('sequence_test'::regclass);
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currval
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---------
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2
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(1 row)
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SELECT setval('sequence_test'::text, 32);
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setval
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--------
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32
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(1 row)
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SELECT nextval('sequence_test'::regclass);
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nextval
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---------
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33
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(1 row)
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SELECT setval('sequence_test'::text, 99, false);
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setval
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--------
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99
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(1 row)
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SELECT nextval('sequence_test'::regclass);
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nextval
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---------
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99
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(1 row)
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SELECT setval('sequence_test'::regclass, 32);
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setval
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--------
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32
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(1 row)
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SELECT nextval('sequence_test'::text);
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nextval
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---------
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33
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(1 row)
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SELECT setval('sequence_test'::regclass, 99, false);
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setval
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--------
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99
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(1 row)
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SELECT nextval('sequence_test'::text);
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nextval
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---------
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99
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(1 row)
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DROP SEQUENCE sequence_test;
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-- renaming sequences
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CREATE SEQUENCE foo_seq;
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ALTER TABLE foo_seq RENAME TO foo_seq_new;
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SELECT * FROM foo_seq_new;
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sequence_name | last_value | start_value | increment_by | max_value | min_value | cache_value | log_cnt | is_cycled | is_called
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---------------+------------+-------------+--------------+---------------------+-----------+-------------+---------+-----------+-----------
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foo_seq | 1 | 1 | 1 | 9223372036854775807 | 1 | 1 | 1 | f | f
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(1 row)
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SELECT nextval('foo_seq_new');
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nextval
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---------
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1
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(1 row)
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SELECT nextval('foo_seq_new');
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nextval
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---------
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2
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(1 row)
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SELECT * FROM foo_seq_new;
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sequence_name | last_value | start_value | increment_by | max_value | min_value | cache_value | log_cnt | is_cycled | is_called
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---------------+------------+-------------+--------------+---------------------+-----------+-------------+---------+-----------+-----------
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foo_seq | 2 | 1 | 1 | 9223372036854775807 | 1 | 1 | 31 | f | t
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(1 row)
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DROP SEQUENCE foo_seq_new;
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-- renaming serial sequences
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ALTER TABLE serialtest_f2_seq RENAME TO serialtest_f2_foo;
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INSERT INTO serialTest VALUES ('more');
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SELECT * FROM serialTest;
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f1 | f2
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-------+-----
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foo | 1
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bar | 2
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force | 100
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more | 3
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(4 rows)
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--
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-- Check dependencies of serial and ordinary sequences
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--
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CREATE TEMP SEQUENCE myseq2;
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CREATE TEMP SEQUENCE myseq3;
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CREATE TEMP TABLE t1 (
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f1 serial,
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f2 int DEFAULT nextval('myseq2'),
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f3 int DEFAULT nextval('myseq3'::text)
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);
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NOTICE: CREATE TABLE will create implicit sequence "t1_f1_seq" for serial column "t1.f1"
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-- Both drops should fail, but with different error messages:
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DROP SEQUENCE t1_f1_seq;
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ERROR: cannot drop sequence t1_f1_seq because other objects depend on it
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DETAIL: default for table t1 column f1 depends on sequence t1_f1_seq
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HINT: Use DROP ... CASCADE to drop the dependent objects too.
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DROP SEQUENCE myseq2;
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ERROR: cannot drop sequence myseq2 because other objects depend on it
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DETAIL: default for table t1 column f2 depends on sequence myseq2
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HINT: Use DROP ... CASCADE to drop the dependent objects too.
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-- This however will work:
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DROP SEQUENCE myseq3;
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DROP TABLE t1;
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-- Fails because no longer existent:
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DROP SEQUENCE t1_f1_seq;
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ERROR: sequence "t1_f1_seq" does not exist
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-- Now OK:
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DROP SEQUENCE myseq2;
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--
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-- Alter sequence
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--
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CREATE SEQUENCE sequence_test2 START WITH 32;
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SELECT nextval('sequence_test2');
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nextval
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---------
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32
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(1 row)
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ALTER SEQUENCE sequence_test2 RESTART WITH 24
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INCREMENT BY 4 MAXVALUE 36 MINVALUE 5 CYCLE;
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SELECT nextval('sequence_test2');
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nextval
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---------
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24
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(1 row)
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SELECT nextval('sequence_test2');
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nextval
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---------
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28
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(1 row)
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SELECT nextval('sequence_test2');
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nextval
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---------
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32
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(1 row)
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SELECT nextval('sequence_test2');
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nextval
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---------
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36
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(1 row)
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SELECT nextval('sequence_test2');
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nextval
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---------
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5
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(1 row)
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ALTER SEQUENCE sequence_test2 RESTART;
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SELECT nextval('sequence_test2');
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nextval
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---------
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32
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(1 row)
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SELECT nextval('sequence_test2');
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nextval
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---------
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36
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(1 row)
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SELECT nextval('sequence_test2');
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nextval
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---------
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5
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(1 row)
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-- Test comments
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COMMENT ON SEQUENCE asdf IS 'won''t work';
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ERROR: relation "asdf" does not exist
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COMMENT ON SEQUENCE sequence_test2 IS 'will work';
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COMMENT ON SEQUENCE sequence_test2 IS NULL;
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-- Test lastval()
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CREATE SEQUENCE seq;
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SELECT nextval('seq');
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nextval
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---------
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1
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(1 row)
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SELECT lastval();
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lastval
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---------
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1
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(1 row)
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SELECT setval('seq', 99);
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setval
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--------
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99
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(1 row)
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SELECT lastval();
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lastval
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---------
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99
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(1 row)
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CREATE SEQUENCE seq2;
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SELECT nextval('seq2');
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nextval
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---------
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1
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(1 row)
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SELECT lastval();
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lastval
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---------
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1
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(1 row)
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DROP SEQUENCE seq2;
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-- should fail
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SELECT lastval();
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ERROR: lastval is not yet defined in this session
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CREATE USER seq_user;
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BEGIN;
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SET LOCAL SESSION AUTHORIZATION seq_user;
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CREATE SEQUENCE seq3;
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SELECT nextval('seq3');
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nextval
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---------
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1
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(1 row)
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REVOKE ALL ON seq3 FROM seq_user;
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SELECT lastval();
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ERROR: permission denied for sequence seq3
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ROLLBACK;
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DROP USER seq_user;
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DROP SEQUENCE seq;
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