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5f65225fa3
Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values Also updated create sequence docs to mention NO MINVALUE, & NO MAXVALUE. New Files: doc/src/sgml/ref/alter_sequence.sgml src/test/regress/expected/sequence.out src/test/regress/sql/sequence.sql ALTER SEQUENCE is NOT transactional. It behaves similarly to setval(). It matches the proposed SQL200N spec, as well as Oracle in most ways -- Oracle lacks RESTART WITH for some strange reason. -- Rod Taylor <rbt@rbt.ca>
39 lines
849 B
PL/PgSQL
39 lines
849 B
PL/PgSQL
---
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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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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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SELECT * FROM serialTest;
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CREATE SEQUENCE sequence_test;
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BEGIN;
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SELECT nextval('sequence_test');
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DROP SEQUENCE sequence_test;
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END;
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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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DROP SEQUENCE foo_seq_new;
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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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ALTER SEQUENCE sequence_test2 RESTART WITH 16
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INCREMENT BY 4 MAXVALUE 22 MINVALUE 5 CYCLE;
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SELECT nextval('sequence_test2');
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SELECT nextval('sequence_test2');
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SELECT nextval('sequence_test2');
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