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|
--
-- CREATE_MISC
--
--
-- a is the type root
-- b and c inherit from a (one-level single inheritance)
-- d inherits from b and c (two-level multiple inheritance)
-- e inherits from c (two-level single inheritance)
-- f inherits from e (three-level single inheritance)
--
CREATE TABLE a_star (
class char,
a int4
);
CREATE TABLE b_star (
b text
) INHERITS (a_star);
CREATE TABLE c_star (
c name
) INHERITS (a_star);
CREATE TABLE d_star (
d float8
) INHERITS (b_star, c_star);
NOTICE: merging multiple inherited definitions of column "class"
NOTICE: merging multiple inherited definitions of column "a"
CREATE TABLE e_star (
e int2
) INHERITS (c_star);
CREATE TABLE f_star (
f polygon
) INHERITS (e_star);
INSERT INTO a_star (class, a) VALUES ('a', 1);
INSERT INTO a_star (class, a) VALUES ('a', 2);
INSERT INTO a_star (class) VALUES ('a');
INSERT INTO b_star (class, a, b) VALUES ('b', 3, 'mumble'::text);
INSERT INTO b_star (class, a) VALUES ('b', 4);
INSERT INTO b_star (class, b) VALUES ('b', 'bumble'::text);
INSERT INTO b_star (class) VALUES ('b');
INSERT INTO c_star (class, a, c) VALUES ('c', 5, 'hi mom'::name);
INSERT INTO c_star (class, a) VALUES ('c', 6);
INSERT INTO c_star (class, c) VALUES ('c', 'hi paul'::name);
INSERT INTO c_star (class) VALUES ('c');
INSERT INTO d_star (class, a, b, c, d)
VALUES ('d', 7, 'grumble'::text, 'hi sunita'::name, '0.0'::float8);
INSERT INTO d_star (class, a, b, c)
VALUES ('d', 8, 'stumble'::text, 'hi koko'::name);
INSERT INTO d_star (class, a, b, d)
VALUES ('d', 9, 'rumble'::text, '1.1'::float8);
INSERT INTO d_star (class, a, c, d)
VALUES ('d', 10, 'hi kristin'::name, '10.01'::float8);
INSERT INTO d_star (class, b, c, d)
VALUES ('d', 'crumble'::text, 'hi boris'::name, '100.001'::float8);
INSERT INTO d_star (class, a, b)
VALUES ('d', 11, 'fumble'::text);
INSERT INTO d_star (class, a, c)
VALUES ('d', 12, 'hi avi'::name);
INSERT INTO d_star (class, a, d)
VALUES ('d', 13, '1000.0001'::float8);
INSERT INTO d_star (class, b, c)
VALUES ('d', 'tumble'::text, 'hi andrew'::name);
INSERT INTO d_star (class, b, d)
VALUES ('d', 'humble'::text, '10000.00001'::float8);
INSERT INTO d_star (class, c, d)
VALUES ('d', 'hi ginger'::name, '100000.000001'::float8);
INSERT INTO d_star (class, a) VALUES ('d', 14);
INSERT INTO d_star (class, b) VALUES ('d', 'jumble'::text);
INSERT INTO d_star (class, c) VALUES ('d', 'hi jolly'::name);
INSERT INTO d_star (class, d) VALUES ('d', '1000000.0000001'::float8);
INSERT INTO d_star (class) VALUES ('d');
INSERT INTO e_star (class, a, c, e)
VALUES ('e', 15, 'hi carol'::name, '-1'::int2);
INSERT INTO e_star (class, a, c)
VALUES ('e', 16, 'hi bob'::name);
INSERT INTO e_star (class, a, e)
VALUES ('e', 17, '-2'::int2);
INSERT INTO e_star (class, c, e)
VALUES ('e', 'hi michelle'::name, '-3'::int2);
INSERT INTO e_star (class, a)
VALUES ('e', 18);
INSERT INTO e_star (class, c)
VALUES ('e', 'hi elisa'::name);
INSERT INTO e_star (class, e)
VALUES ('e', '-4'::int2);
INSERT INTO f_star (class, a, c, e, f)
VALUES ('f', 19, 'hi claire'::name, '-5'::int2, '(1,3),(2,4)'::polygon);
INSERT INTO f_star (class, a, c, e)
VALUES ('f', 20, 'hi mike'::name, '-6'::int2);
INSERT INTO f_star (class, a, c, f)
VALUES ('f', 21, 'hi marcel'::name, '(11,44),(22,55),(33,66)'::polygon);
INSERT INTO f_star (class, a, e, f)
VALUES ('f', 22, '-7'::int2, '(111,555),(222,666),(333,777),(444,888)'::polygon);
INSERT INTO f_star (class, c, e, f)
VALUES ('f', 'hi keith'::name, '-8'::int2,
'(1111,3333),(2222,4444)'::polygon);
INSERT INTO f_star (class, a, c)
VALUES ('f', 24, 'hi marc'::name);
INSERT INTO f_star (class, a, e)
VALUES ('f', 25, '-9'::int2);
INSERT INTO f_star (class, a, f)
VALUES ('f', 26, '(11111,33333),(22222,44444)'::polygon);
INSERT INTO f_star (class, c, e)
VALUES ('f', 'hi allison'::name, '-10'::int2);
INSERT INTO f_star (class, c, f)
VALUES ('f', 'hi jeff'::name,
'(111111,333333),(222222,444444)'::polygon);
INSERT INTO f_star (class, e, f)
VALUES ('f', '-11'::int2, '(1111111,3333333),(2222222,4444444)'::polygon);
INSERT INTO f_star (class, a) VALUES ('f', 27);
INSERT INTO f_star (class, c) VALUES ('f', 'hi carl'::name);
INSERT INTO f_star (class, e) VALUES ('f', '-12'::int2);
INSERT INTO f_star (class, f)
VALUES ('f', '(11111111,33333333),(22222222,44444444)'::polygon);
INSERT INTO f_star (class) VALUES ('f');
-- Analyze the X_star tables for better plan stability in later tests
ANALYZE a_star;
ANALYZE b_star;
ANALYZE c_star;
ANALYZE d_star;
ANALYZE e_star;
ANALYZE f_star;
--
-- inheritance stress test
--
SELECT * FROM a_star*;
class | a
-------+----
a | 1
a | 2
a |
b | 3
b | 4
b |
b |
c | 5
c | 6
c |
c |
d | 7
d | 8
d | 9
d | 10
d |
d | 11
d | 12
d | 13
d |
d |
d |
d | 14
d |
d |
d |
d |
e | 15
e | 16
e | 17
e |
e | 18
e |
e |
f | 19
f | 20
f | 21
f | 22
f |
f | 24
f | 25
f | 26
f |
f |
f |
f | 27
f |
f |
f |
f |
(50 rows)
SELECT *
FROM b_star* x
WHERE x.b = text 'bumble' or x.a < 3;
class | a | b
-------+---+--------
b | | bumble
(1 row)
SELECT class, a
FROM c_star* x
WHERE x.c ~ text 'hi';
class | a
-------+----
c | 5
c |
d | 7
d | 8
d | 10
d |
d | 12
d |
d |
d |
e | 15
e | 16
e |
e |
f | 19
f | 20
f | 21
f |
f | 24
f |
f |
f |
(22 rows)
SELECT class, b, c
FROM d_star* x
WHERE x.a < 100;
class | b | c
-------+---------+------------
d | grumble | hi sunita
d | stumble | hi koko
d | rumble |
d | | hi kristin
d | fumble |
d | | hi avi
d | |
d | |
(8 rows)
SELECT class, c FROM e_star* x WHERE x.c NOTNULL;
class | c
-------+-------------
e | hi carol
e | hi bob
e | hi michelle
e | hi elisa
f | hi claire
f | hi mike
f | hi marcel
f | hi keith
f | hi marc
f | hi allison
f | hi jeff
f | hi carl
(12 rows)
SELECT * FROM f_star* x WHERE x.c ISNULL;
class | a | c | e | f
-------+----+---+-----+-------------------------------------------
f | 22 | | -7 | ((111,555),(222,666),(333,777),(444,888))
f | 25 | | -9 |
f | 26 | | | ((11111,33333),(22222,44444))
f | | | -11 | ((1111111,3333333),(2222222,4444444))
f | 27 | | |
f | | | -12 |
f | | | | ((11111111,33333333),(22222222,44444444))
f | | | |
(8 rows)
-- grouping and aggregation on inherited sets have been busted in the past...
SELECT sum(a) FROM a_star*;
sum
-----
355
(1 row)
SELECT class, sum(a) FROM a_star* GROUP BY class ORDER BY class;
class | sum
-------+-----
a | 3
b | 7
c | 11
d | 84
e | 66
f | 184
(6 rows)
ALTER TABLE f_star RENAME COLUMN f TO ff;
ALTER TABLE e_star* RENAME COLUMN e TO ee;
ALTER TABLE d_star* RENAME COLUMN d TO dd;
ALTER TABLE c_star* RENAME COLUMN c TO cc;
ALTER TABLE b_star* RENAME COLUMN b TO bb;
ALTER TABLE a_star* RENAME COLUMN a TO aa;
SELECT class, aa
FROM a_star* x
WHERE aa ISNULL;
class | aa
-------+----
a |
b |
b |
c |
c |
d |
d |
d |
d |
d |
d |
d |
d |
e |
e |
e |
f |
f |
f |
f |
f |
f |
f |
f |
(24 rows)
-- As of Postgres 7.1, ALTER implicitly recurses,
-- so this should be same as ALTER a_star*
ALTER TABLE a_star RENAME COLUMN aa TO foo;
SELECT class, foo
FROM a_star* x
WHERE x.foo >= 2;
class | foo
-------+-----
a | 2
b | 3
b | 4
c | 5
c | 6
d | 7
d | 8
d | 9
d | 10
d | 11
d | 12
d | 13
d | 14
e | 15
e | 16
e | 17
e | 18
f | 19
f | 20
f | 21
f | 22
f | 24
f | 25
f | 26
f | 27
(25 rows)
ALTER TABLE a_star RENAME COLUMN foo TO aa;
SELECT *
from a_star*
WHERE aa < 1000;
class | aa
-------+----
a | 1
a | 2
b | 3
b | 4
c | 5
c | 6
d | 7
d | 8
d | 9
d | 10
d | 11
d | 12
d | 13
d | 14
e | 15
e | 16
e | 17
e | 18
f | 19
f | 20
f | 21
f | 22
f | 24
f | 25
f | 26
f | 27
(26 rows)
ALTER TABLE f_star ADD COLUMN f int4;
UPDATE f_star SET f = 10;
ALTER TABLE e_star* ADD COLUMN e int4;
--UPDATE e_star* SET e = 42;
SELECT * FROM e_star*;
class | aa | cc | ee | e
-------+----+-------------+-----+---
e | 15 | hi carol | -1 |
e | 16 | hi bob | |
e | 17 | | -2 |
e | | hi michelle | -3 |
e | 18 | | |
e | | hi elisa | |
e | | | -4 |
f | 19 | hi claire | -5 |
f | 20 | hi mike | -6 |
f | 21 | hi marcel | |
f | 22 | | -7 |
f | | hi keith | -8 |
f | 24 | hi marc | |
f | 25 | | -9 |
f | 26 | | |
f | | hi allison | -10 |
f | | hi jeff | |
f | | | -11 |
f | 27 | | |
f | | hi carl | |
f | | | -12 |
f | | | |
f | | | |
(23 rows)
ALTER TABLE a_star* ADD COLUMN a text;
NOTICE: merging definition of column "a" for child "d_star"
-- That ALTER TABLE should have added TOAST tables.
SELECT relname, reltoastrelid <> 0 AS has_toast_table
FROM pg_class
WHERE oid::regclass IN ('a_star', 'c_star')
ORDER BY 1;
relname | has_toast_table
---------+-----------------
a_star | t
c_star | t
(2 rows)
--UPDATE b_star*
-- SET a = text 'gazpacho'
-- WHERE aa > 4;
SELECT class, aa, a FROM a_star*;
class | aa | a
-------+----+---
a | 1 |
a | 2 |
a | |
b | 3 |
b | 4 |
b | |
b | |
c | 5 |
c | 6 |
c | |
c | |
d | 7 |
d | 8 |
d | 9 |
d | 10 |
d | |
d | 11 |
d | 12 |
d | 13 |
d | |
d | |
d | |
d | 14 |
d | |
d | |
d | |
d | |
e | 15 |
e | 16 |
e | 17 |
e | |
e | 18 |
e | |
e | |
f | 19 |
f | 20 |
f | 21 |
f | 22 |
f | |
f | 24 |
f | 25 |
f | 26 |
f | |
f | |
f | |
f | 27 |
f | |
f | |
f | |
f | |
(50 rows)
|
