uuid.out

来自「postgresql8.3.4源码,开源数据库」· OUT 代码 · 共 137 行

-- regression test for the uuid datatype
-- creating test tables
CREATE TABLE guid1
(
 	guid_field UUID,
	text_field TEXT DEFAULT(now())
);
CREATE TABLE guid2
(
 	guid_field UUID,
	text_field TEXT DEFAULT(now())
);
-- inserting invalid data tests
-- too long
INSERT INTO guid1(guid_field) VALUES('11111111-1111-1111-1111-111111111111F');
ERROR:  invalid input syntax for uuid: "11111111-1111-1111-1111-111111111111F"
-- too short
INSERT INTO guid1(guid_field) VALUES('{11111111-1111-1111-1111-11111111111}');
ERROR:  invalid input syntax for uuid: "{11111111-1111-1111-1111-11111111111}"
-- valid data but invalid format
INSERT INTO guid1(guid_field) VALUES('111-11111-1111-1111-1111-111111111111');
ERROR:  invalid input syntax for uuid: "111-11111-1111-1111-1111-111111111111"
INSERT INTO guid1(guid_field) VALUES('{22222222-2222-2222-2222-222222222222 ');
ERROR:  invalid input syntax for uuid: "{22222222-2222-2222-2222-222222222222 "
-- invalid data
INSERT INTO guid1(guid_field) VALUES('11111111-1111-1111-G111-111111111111');
ERROR:  invalid input syntax for uuid: "11111111-1111-1111-G111-111111111111"
INSERT INTO guid1(guid_field) VALUES('11+11111-1111-1111-1111-111111111111');
ERROR:  invalid input syntax for uuid: "11+11111-1111-1111-1111-111111111111"
--inserting three input formats
INSERT INTO guid1(guid_field) VALUES('11111111-1111-1111-1111-111111111111');
INSERT INTO guid1(guid_field) VALUES('{22222222-2222-2222-2222-222222222222}');
INSERT INTO guid1(guid_field) VALUES('3f3e3c3b3a3039383736353433a2313e');
-- retrieving the inserted data
SELECT guid_field FROM guid1;
              guid_field              
--------------------------------------
 11111111-1111-1111-1111-111111111111
 22222222-2222-2222-2222-222222222222
 3f3e3c3b-3a30-3938-3736-353433a2313e
(3 rows)

-- ordering test
SELECT guid_field FROM guid1 ORDER BY guid_field ASC;
              guid_field              
--------------------------------------
 11111111-1111-1111-1111-111111111111
 22222222-2222-2222-2222-222222222222
 3f3e3c3b-3a30-3938-3736-353433a2313e
(3 rows)

SELECT guid_field FROM guid1 ORDER BY guid_field DESC;
              guid_field              
--------------------------------------
 3f3e3c3b-3a30-3938-3736-353433a2313e
 22222222-2222-2222-2222-222222222222
 11111111-1111-1111-1111-111111111111
(3 rows)

-- = operator test
SELECT COUNT(*) FROM guid1 WHERE guid_field = '3f3e3c3b-3a30-3938-3736-353433a2313e';
 count 
-------
     1
(1 row)

-- <> operator test
SELECT COUNT(*) FROM guid1 WHERE guid_field <> '11111111111111111111111111111111';
 count 
-------
     2
(1 row)

-- < operator test
SELECT COUNT(*) FROM guid1 WHERE guid_field < '22222222-2222-2222-2222-222222222222';
 count 
-------
     1
(1 row)

-- <= operator test
SELECT COUNT(*) FROM guid1 WHERE guid_field <= '22222222-2222-2222-2222-222222222222';
 count 
-------
     2
(1 row)

-- > operator test
SELECT COUNT(*) FROM guid1 WHERE guid_field > '22222222-2222-2222-2222-222222222222';
 count 
-------
     1
(1 row)

-- >= operator test
SELECT COUNT(*) FROM guid1 WHERE guid_field >= '22222222-2222-2222-2222-222222222222';
 count 
-------
     2
(1 row)

-- btree and hash index creation test
CREATE INDEX guid1_btree ON guid1 USING BTREE (guid_field);
CREATE INDEX guid1_hash  ON guid1 USING HASH  (guid_field);
-- unique index test
CREATE UNIQUE INDEX guid1_unique_BTREE ON guid1 USING BTREE (guid_field);
-- should fail
INSERT INTO guid1(guid_field) VALUES('11111111-1111-1111-1111-111111111111');
ERROR:  duplicate key value violates unique constraint "guid1_unique_btree"
-- check to see whether the new indexes are actually there
SELECT count(*) FROM pg_class WHERE relkind='i' AND relname LIKE 'guid%';
 count 
-------
     3
(1 row)

-- populating the test tables with additional records
INSERT INTO guid1(guid_field) VALUES('44444444-4444-4444-4444-444444444444');
INSERT INTO guid2(guid_field) VALUES('11111111-1111-1111-1111-111111111111');
INSERT INTO guid2(guid_field) VALUES('{22222222-2222-2222-2222-222222222222}');
INSERT INTO guid2(guid_field) VALUES('3f3e3c3b3a3039383736353433a2313e');
-- join test
SELECT COUNT(*) FROM guid1 g1 INNER JOIN guid2 g2 ON g1.guid_field = g2.guid_field;
 count 
-------
     3
(1 row)

SELECT COUNT(*) FROM guid1 g1 LEFT JOIN guid2 g2 ON g1.guid_field = g2.guid_field WHERE g2.guid_field IS NULL;
 count 
-------
     1
(1 row)

-- clean up
DROP TABLE guid1, guid2 CASCADE;