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ALTER <thing> [IF EXISTS] ... allows silent DDL if required,

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e.g. ALTER FOREIGN TABLE IF EXISTS foo RENAME TO bar

Pavel Stehule
This commit is contained in:
Simon Riggs
2012-01-23 23:25:04 +00:00
parent 4993a49b7c
commit b8a91d9d1c
19 changed files with 534 additions and 52 deletions
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32
src/test/regress/sql/alter_table.sql
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@ -166,6 +166,9 @@ DROP TABLE tmp_new2;
-- ALTER TABLE ... RENAME on non-table relations
-- renaming indexes (FIXME: this should probably test the index's functionality)
ALTER INDEX IF EXISTS __onek_unique1 RENAME TO tmp_onek_unique1;
ALTER INDEX IF EXISTS __tmp_onek_unique1 RENAME TO onek_unique1;
ALTER INDEX onek_unique1 RENAME TO tmp_onek_unique1;
ALTER INDEX tmp_onek_unique1 RENAME TO onek_unique1;
-- renaming views
@ -898,6 +901,10 @@ alter table only renameColumn rename column a to d;
alter table renameColumn rename column a to d;
alter table renameColumnChild rename column b to a;
-- these should work
alter table if exists doesnt_exist_tab rename column a to d;
alter table if exists doesnt_exist_tab rename column b to a;
-- this should work
alter table renameColumn add column w int;
@ -1463,3 +1470,28 @@ ALTER TABLE ONLY test_drop_constr_parent DROP CONSTRAINT "test_drop_constr_paren
-- should fail
INSERT INTO test_drop_constr_child (c) VALUES (NULL);
DROP TABLE test_drop_constr_parent CASCADE;
--
-- IF EXISTS test
--
ALTER TABLE IF EXISTS tt8 ADD COLUMN f int;
ALTER TABLE IF EXISTS tt8 ADD CONSTRAINT xxx PRIMARY KEY(f);
ALTER TABLE IF EXISTS tt8 ADD CHECK (f BETWEEN 0 AND 10);
ALTER TABLE IF EXISTS tt8 ALTER COLUMN f SET DEFAULT 0;
ALTER TABLE IF EXISTS tt8 RENAME COLUMN f TO f1;
ALTER TABLE IF EXISTS tt8 SET SCHEMA alter2;
CREATE TABLE tt8(a int);
CREATE SCHEMA alter2;
ALTER TABLE IF EXISTS tt8 ADD COLUMN f int;
ALTER TABLE IF EXISTS tt8 ADD CONSTRAINT xxx PRIMARY KEY(f);
ALTER TABLE IF EXISTS tt8 ADD CHECK (f BETWEEN 0 AND 10);
ALTER TABLE IF EXISTS tt8 ALTER COLUMN f SET DEFAULT 0;
ALTER TABLE IF EXISTS tt8 RENAME COLUMN f TO f1;
ALTER TABLE IF EXISTS tt8 SET SCHEMA alter2;
\d alter2.tt8
DROP TABLE alter2.tt8;
DROP SCHEMA alter2;