postgresql/src/test/regress/sql/alter_table.sql

--
-- ALTER_TABLE
-- add attribute
--

CREATE TABLE tmp (initial int4);

ALTER TABLE tmp ADD COLUMN a int4;

ALTER TABLE tmp ADD COLUMN b name;

ALTER TABLE tmp ADD COLUMN c text;

ALTER TABLE tmp ADD COLUMN d float8;

ALTER TABLE tmp ADD COLUMN e float4;

ALTER TABLE tmp ADD COLUMN f int2;

ALTER TABLE tmp ADD COLUMN g polygon;

ALTER TABLE tmp ADD COLUMN h abstime;

ALTER TABLE tmp ADD COLUMN i char;

ALTER TABLE tmp ADD COLUMN j abstime[];

ALTER TABLE tmp ADD COLUMN k dt;

ALTER TABLE tmp ADD COLUMN l tid;

ALTER TABLE tmp ADD COLUMN m xid;

ALTER TABLE tmp ADD COLUMN n oidvector;

--ALTER TABLE tmp ADD COLUMN o lock;
ALTER TABLE tmp ADD COLUMN p smgr;

ALTER TABLE tmp ADD COLUMN q point;

ALTER TABLE tmp ADD COLUMN r lseg;

ALTER TABLE tmp ADD COLUMN s path;

ALTER TABLE tmp ADD COLUMN t box;

ALTER TABLE tmp ADD COLUMN u tinterval;

ALTER TABLE tmp ADD COLUMN v datetime;

ALTER TABLE tmp ADD COLUMN w timespan;

ALTER TABLE tmp ADD COLUMN x float8[];

ALTER TABLE tmp ADD COLUMN y float4[];

ALTER TABLE tmp ADD COLUMN z int2[];

INSERT INTO tmp (a, b, c, d, e, f, g, h, i, j, k, l, m, n, p, q, r, s, t, u,
	v, w, x, y, z)
   VALUES (4, 'name', 'text', 4.1, 4.1, 2, '(4.1,4.1,3.1,3.1)', 
        'Mon May  1 00:30:30 1995', 'c', '{Mon May  1 00:30:30 1995, Monday Aug 24 14:43:07 1992, epoch}', 
	314159, '(1,1)', 512,
	'1 2 3 4 5 6 7 8', 'magnetic disk', '(1.1,1.1)', '(4.1,4.1,3.1,3.1)',
	'(0,2,4.1,4.1,3.1,3.1)', '(4.1,4.1,3.1,3.1)', '["current" "infinity"]',
	'1/3', '1,name', '{1.0,2.0,3.0,4.0}', '{1.0,2.0,3.0,4.0}', '{1,2,3,4}');

SELECT * FROM tmp;

DROP TABLE tmp;

-- the wolf bug - schema mods caused inconsistent row descriptors 
CREATE TABLE tmp (
	initial 	int4
);

ALTER TABLE tmp ADD COLUMN a int4;

ALTER TABLE tmp ADD COLUMN b name;

ALTER TABLE tmp ADD COLUMN c text;

ALTER TABLE tmp ADD COLUMN d float8;

ALTER TABLE tmp ADD COLUMN e float4;

ALTER TABLE tmp ADD COLUMN f int2;

ALTER TABLE tmp ADD COLUMN g polygon;

ALTER TABLE tmp ADD COLUMN h abstime;

ALTER TABLE tmp ADD COLUMN i char;

ALTER TABLE tmp ADD COLUMN j abstime[];

ALTER TABLE tmp ADD COLUMN k dt;

ALTER TABLE tmp ADD COLUMN l tid;

ALTER TABLE tmp ADD COLUMN m xid;

ALTER TABLE tmp ADD COLUMN n oidvector;

--ALTER TABLE tmp ADD COLUMN o lock;
ALTER TABLE tmp ADD COLUMN p smgr;

ALTER TABLE tmp ADD COLUMN q point;

ALTER TABLE tmp ADD COLUMN r lseg;

ALTER TABLE tmp ADD COLUMN s path;

ALTER TABLE tmp ADD COLUMN t box;

ALTER TABLE tmp ADD COLUMN u tinterval;

ALTER TABLE tmp ADD COLUMN v datetime;

ALTER TABLE tmp ADD COLUMN w timespan;

ALTER TABLE tmp ADD COLUMN x float8[];

ALTER TABLE tmp ADD COLUMN y float4[];

ALTER TABLE tmp ADD COLUMN z int2[];

INSERT INTO tmp (a, b, c, d, e, f, g, h, i, j, k, l, m, n, p, q, r, s, t, u,
	v, w, x, y, z)
   VALUES (4, 'name', 'text', 4.1, 4.1, 2, '(4.1,4.1,3.1,3.1)', 
	'Mon May  1 00:30:30 1995', 'c', '{Mon May  1 00:30:30 1995, Monday Aug 24 14:43:07 1992, epoch}',
	 314159, '(1,1)', 512,
	'1 2 3 4 5 6 7 8', 'magnetic disk', '(1.1,1.1)', '(4.1,4.1,3.1,3.1)',
	'(0,2,4.1,4.1,3.1,3.1)', '(4.1,4.1,3.1,3.1)', '["current" "infinity"]',
	'1/3', '1,name', '{1.0,2.0,3.0,4.0}', '{1.0,2.0,3.0,4.0}', '{1,2,3,4}');

SELECT * FROM tmp;

DROP TABLE tmp;


--
-- rename -
--   should preserve indices, which we can check by seeing if a SELECT
--   chooses an indexscan; however, in the absence of vacuum statistics
--   it might not.  Therefore, vacuum first.
--
VACUUM ANALYZE tenk1;

ALTER TABLE tenk1 RENAME TO ten_k;

-- 20 values, sorted 
SELECT unique1 FROM ten_k WHERE unique1 < 20;

-- 20 values, sorted 
SELECT unique2 FROM ten_k WHERE unique2 < 20;

-- 100 values, sorted 
SELECT hundred FROM ten_k WHERE hundred = 50;

ALTER TABLE ten_k RENAME TO tenk1;

-- 5 values, sorted 
SELECT unique1 FROM tenk1 WHERE unique1 < 5;

-- FOREIGN KEY CONSTRAINT adding TEST

CREATE TABLE tmp2 (a int primary key);

CREATE TABLE tmp3 (a int, b int);

CREATE TABLE tmp4 (a int, b int, unique(a,b));

CREATE TABLE tmp5 (a int, b int);

-- Insert rows into tmp2 (pktable)
INSERT INTO tmp2 values (1);
INSERT INTO tmp2 values (2);
INSERT INTO tmp2 values (3);
INSERT INTO tmp2 values (4);

-- Insert rows into tmp3
INSERT INTO tmp3 values (1,10);
INSERT INTO tmp3 values (1,20);
INSERT INTO tmp3 values (5,50);

-- Try (and fail) to add constraint due to invalid source columns
ALTER TABLE tmp3 add constraint tmpconstr foreign key(c) references tmp2 match full;

-- Try (and fail) to add constraint due to invalide destination columns explicitly given
ALTER TABLE tmp3 add constraint tmpconstr foreign key(a) references tmp2(b) match full;

-- Try (and fail) to add constraint due to invalid data
ALTER TABLE tmp3 add constraint tmpconstr foreign key (a) references tmp2 match full;

-- Delete failing row
DELETE FROM tmp3 where a=5;

-- Try (and succeed)
ALTER TABLE tmp3 add constraint tmpconstr foreign key (a) references tmp2 match full;

-- Try (and fail) to create constraint from tmp5(a) to tmp4(a) - unique constraint on
-- tmp4 is a,b

ALTER TABLE tmp5 add constraint tmpconstr foreign key(a) references tmp4(a) match full;

DROP TABLE tmp5;

DROP TABLE tmp4;

DROP TABLE tmp3;

DROP TABLE tmp2;