--
--  CLUSTER
--

CREATE TABLE clstr_tst_s (rf_a SERIAL PRIMARY KEY,
	b INT);

CREATE TABLE clstr_tst (a SERIAL PRIMARY KEY,
	b INT,
	c TEXT,
	CONSTRAINT clstr_tst_con FOREIGN KEY (b) REFERENCES clstr_tst_s);

CREATE INDEX clstr_tst_b ON clstr_tst (b);
CREATE INDEX clstr_tst_c ON clstr_tst (c);
CREATE INDEX clstr_tst_c_b ON clstr_tst (c,b);
CREATE INDEX clstr_tst_b_c ON clstr_tst (b,c);

INSERT INTO clstr_tst_s (b) VALUES (0);
INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;

CREATE TABLE clstr_tst_inh () INHERITS (clstr_tst);

INSERT INTO clstr_tst (b, c) VALUES (11, 'once');
INSERT INTO clstr_tst (b, c) VALUES (10, 'diez');
INSERT INTO clstr_tst (b, c) VALUES (31, 'treinta y uno');
INSERT INTO clstr_tst (b, c) VALUES (22, 'veintidos');
INSERT INTO clstr_tst (b, c) VALUES (3, 'tres');
INSERT INTO clstr_tst (b, c) VALUES (20, 'veinte');
INSERT INTO clstr_tst (b, c) VALUES (23, 'veintitres');
INSERT INTO clstr_tst (b, c) VALUES (21, 'veintiuno');
INSERT INTO clstr_tst (b, c) VALUES (4, 'cuatro');
INSERT INTO clstr_tst (b, c) VALUES (14, 'catorce');
INSERT INTO clstr_tst (b, c) VALUES (2, 'dos');
INSERT INTO clstr_tst (b, c) VALUES (18, 'dieciocho');
INSERT INTO clstr_tst (b, c) VALUES (27, 'veintisiete');
INSERT INTO clstr_tst (b, c) VALUES (25, 'veinticinco');
INSERT INTO clstr_tst (b, c) VALUES (13, 'trece');
INSERT INTO clstr_tst (b, c) VALUES (28, 'veintiocho');
INSERT INTO clstr_tst (b, c) VALUES (32, 'treinta y dos');
INSERT INTO clstr_tst (b, c) VALUES (5, 'cinco');
INSERT INTO clstr_tst (b, c) VALUES (29, 'veintinueve');
INSERT INTO clstr_tst (b, c) VALUES (1, 'uno');
INSERT INTO clstr_tst (b, c) VALUES (24, 'veinticuatro');
INSERT INTO clstr_tst (b, c) VALUES (30, 'treinta');
INSERT INTO clstr_tst (b, c) VALUES (12, 'doce');
INSERT INTO clstr_tst (b, c) VALUES (17, 'diecisiete');
INSERT INTO clstr_tst (b, c) VALUES (9, 'nueve');
INSERT INTO clstr_tst (b, c) VALUES (19, 'diecinueve');
INSERT INTO clstr_tst (b, c) VALUES (26, 'veintiseis');
INSERT INTO clstr_tst (b, c) VALUES (15, 'quince');
INSERT INTO clstr_tst (b, c) VALUES (7, 'siete');
INSERT INTO clstr_tst (b, c) VALUES (16, 'dieciseis');
INSERT INTO clstr_tst (b, c) VALUES (8, 'ocho');
INSERT INTO clstr_tst (b, c) VALUES (6, 'seis');

CLUSTER clstr_tst_c ON clstr_tst;

SELECT * from clstr_tst;
SELECT * from clstr_tst ORDER BY a;
SELECT * from clstr_tst ORDER BY b;
SELECT * from clstr_tst ORDER BY c;

SELECT conname FROM pg_constraint WHERE conrelid=(SELECT oid FROM pg_class
	WHERE relname='clstr_tst');
SELECT relname FROM pg_class WHERE relname LIKE 'clstr_tst%' ORDER BY relname;

DROP TABLE clstr_tst_inh;
DROP TABLE clstr_tst;