mirror of
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c0ad595386
bit on the indexes. I also attach clusterdb and clusterdb.sgml; both of them are blatant rips of vacuumdb and vacuumdb.sgml, but get the job done. Please review them, as I'm probably making a lot of mistakes with SGML and I can't compile it here. vacuumdb itself is not very comfortable to use when the databases have passwords, because it has to connect once for each table (I can probably make it connect only once for each database; should I?). Because of this I added a mention of PGPASSWORDFILE in the documentation, but I don't know if that is the correct place for that. Alvaro Herrera
288 lines
16 KiB
Plaintext
288 lines
16 KiB
Plaintext
--
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-- CLUSTER
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--
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CREATE TABLE clstr_tst_s (rf_a SERIAL PRIMARY KEY,
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b INT);
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NOTICE: CREATE TABLE will create implicit sequence 'clstr_tst_s_rf_a_seq' for SERIAL column 'clstr_tst_s.rf_a'
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NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'clstr_tst_s_pkey' for table 'clstr_tst_s'
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CREATE TABLE clstr_tst (a SERIAL PRIMARY KEY,
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b INT,
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c TEXT,
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d TEXT,
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CONSTRAINT clstr_tst_con FOREIGN KEY (b) REFERENCES clstr_tst_s);
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NOTICE: CREATE TABLE will create implicit sequence 'clstr_tst_a_seq' for SERIAL column 'clstr_tst.a'
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NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'clstr_tst_pkey' for table 'clstr_tst'
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NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
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CREATE INDEX clstr_tst_b ON clstr_tst (b);
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CREATE INDEX clstr_tst_c ON clstr_tst (c);
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CREATE INDEX clstr_tst_c_b ON clstr_tst (c,b);
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CREATE INDEX clstr_tst_b_c ON clstr_tst (b,c);
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INSERT INTO clstr_tst_s (b) VALUES (0);
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INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
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INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
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INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
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INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
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INSERT INTO clstr_tst_s (b) SELECT b FROM clstr_tst_s;
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CREATE TABLE clstr_tst_inh () INHERITS (clstr_tst);
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INSERT INTO clstr_tst (b, c) VALUES (11, 'once');
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INSERT INTO clstr_tst (b, c) VALUES (10, 'diez');
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INSERT INTO clstr_tst (b, c) VALUES (31, 'treinta y uno');
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INSERT INTO clstr_tst (b, c) VALUES (22, 'veintidos');
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INSERT INTO clstr_tst (b, c) VALUES (3, 'tres');
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INSERT INTO clstr_tst (b, c) VALUES (20, 'veinte');
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INSERT INTO clstr_tst (b, c) VALUES (23, 'veintitres');
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INSERT INTO clstr_tst (b, c) VALUES (21, 'veintiuno');
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INSERT INTO clstr_tst (b, c) VALUES (4, 'cuatro');
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INSERT INTO clstr_tst (b, c) VALUES (14, 'catorce');
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INSERT INTO clstr_tst (b, c) VALUES (2, 'dos');
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INSERT INTO clstr_tst (b, c) VALUES (18, 'dieciocho');
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INSERT INTO clstr_tst (b, c) VALUES (27, 'veintisiete');
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INSERT INTO clstr_tst (b, c) VALUES (25, 'veinticinco');
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INSERT INTO clstr_tst (b, c) VALUES (13, 'trece');
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INSERT INTO clstr_tst (b, c) VALUES (28, 'veintiocho');
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INSERT INTO clstr_tst (b, c) VALUES (32, 'treinta y dos');
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INSERT INTO clstr_tst (b, c) VALUES (5, 'cinco');
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INSERT INTO clstr_tst (b, c) VALUES (29, 'veintinueve');
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INSERT INTO clstr_tst (b, c) VALUES (1, 'uno');
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INSERT INTO clstr_tst (b, c) VALUES (24, 'veinticuatro');
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INSERT INTO clstr_tst (b, c) VALUES (30, 'treinta');
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INSERT INTO clstr_tst (b, c) VALUES (12, 'doce');
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INSERT INTO clstr_tst (b, c) VALUES (17, 'diecisiete');
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INSERT INTO clstr_tst (b, c) VALUES (9, 'nueve');
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INSERT INTO clstr_tst (b, c) VALUES (19, 'diecinueve');
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INSERT INTO clstr_tst (b, c) VALUES (26, 'veintiseis');
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INSERT INTO clstr_tst (b, c) VALUES (15, 'quince');
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INSERT INTO clstr_tst (b, c) VALUES (7, 'siete');
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INSERT INTO clstr_tst (b, c) VALUES (16, 'dieciseis');
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INSERT INTO clstr_tst (b, c) VALUES (8, 'ocho');
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-- This entry is needed to test that TOASTED values are copied correctly.
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INSERT INTO clstr_tst (b, c, d) VALUES (6, 'seis', repeat('xyzzy', 100000));
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CLUSTER clstr_tst_c ON clstr_tst;
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SELECT a,b,c,substring(d for 30), length(d) from clstr_tst;
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a | b | c | substring | length
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----+----+---------------+--------------------------------+--------
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10 | 14 | catorce | |
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18 | 5 | cinco | |
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9 | 4 | cuatro | |
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26 | 19 | diecinueve | |
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12 | 18 | dieciocho | |
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30 | 16 | dieciseis | |
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24 | 17 | diecisiete | |
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2 | 10 | diez | |
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23 | 12 | doce | |
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11 | 2 | dos | |
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25 | 9 | nueve | |
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31 | 8 | ocho | |
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1 | 11 | once | |
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28 | 15 | quince | |
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32 | 6 | seis | xyzzyxyzzyxyzzyxyzzyxyzzyxyzzy | 500000
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29 | 7 | siete | |
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15 | 13 | trece | |
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22 | 30 | treinta | |
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17 | 32 | treinta y dos | |
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3 | 31 | treinta y uno | |
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5 | 3 | tres | |
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20 | 1 | uno | |
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6 | 20 | veinte | |
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14 | 25 | veinticinco | |
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21 | 24 | veinticuatro | |
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4 | 22 | veintidos | |
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19 | 29 | veintinueve | |
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16 | 28 | veintiocho | |
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27 | 26 | veintiseis | |
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13 | 27 | veintisiete | |
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7 | 23 | veintitres | |
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8 | 21 | veintiuno | |
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(32 rows)
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SELECT a,b,c,substring(d for 30), length(d) from clstr_tst ORDER BY a;
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a | b | c | substring | length
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----+----+---------------+--------------------------------+--------
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1 | 11 | once | |
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2 | 10 | diez | |
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3 | 31 | treinta y uno | |
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4 | 22 | veintidos | |
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5 | 3 | tres | |
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6 | 20 | veinte | |
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7 | 23 | veintitres | |
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8 | 21 | veintiuno | |
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9 | 4 | cuatro | |
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10 | 14 | catorce | |
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11 | 2 | dos | |
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12 | 18 | dieciocho | |
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13 | 27 | veintisiete | |
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14 | 25 | veinticinco | |
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15 | 13 | trece | |
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16 | 28 | veintiocho | |
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17 | 32 | treinta y dos | |
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18 | 5 | cinco | |
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19 | 29 | veintinueve | |
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20 | 1 | uno | |
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21 | 24 | veinticuatro | |
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22 | 30 | treinta | |
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23 | 12 | doce | |
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24 | 17 | diecisiete | |
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25 | 9 | nueve | |
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26 | 19 | diecinueve | |
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27 | 26 | veintiseis | |
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28 | 15 | quince | |
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29 | 7 | siete | |
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30 | 16 | dieciseis | |
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31 | 8 | ocho | |
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32 | 6 | seis | xyzzyxyzzyxyzzyxyzzyxyzzyxyzzy | 500000
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(32 rows)
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SELECT a,b,c,substring(d for 30), length(d) from clstr_tst ORDER BY b;
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a | b | c | substring | length
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----+----+---------------+--------------------------------+--------
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20 | 1 | uno | |
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11 | 2 | dos | |
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5 | 3 | tres | |
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9 | 4 | cuatro | |
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18 | 5 | cinco | |
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32 | 6 | seis | xyzzyxyzzyxyzzyxyzzyxyzzyxyzzy | 500000
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29 | 7 | siete | |
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31 | 8 | ocho | |
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25 | 9 | nueve | |
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2 | 10 | diez | |
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1 | 11 | once | |
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23 | 12 | doce | |
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15 | 13 | trece | |
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10 | 14 | catorce | |
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28 | 15 | quince | |
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30 | 16 | dieciseis | |
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24 | 17 | diecisiete | |
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12 | 18 | dieciocho | |
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26 | 19 | diecinueve | |
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6 | 20 | veinte | |
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8 | 21 | veintiuno | |
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4 | 22 | veintidos | |
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7 | 23 | veintitres | |
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21 | 24 | veinticuatro | |
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14 | 25 | veinticinco | |
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27 | 26 | veintiseis | |
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13 | 27 | veintisiete | |
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16 | 28 | veintiocho | |
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19 | 29 | veintinueve | |
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22 | 30 | treinta | |
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3 | 31 | treinta y uno | |
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17 | 32 | treinta y dos | |
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(32 rows)
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SELECT a,b,c,substring(d for 30), length(d) from clstr_tst ORDER BY c;
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a | b | c | substring | length
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----+----+---------------+--------------------------------+--------
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10 | 14 | catorce | |
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18 | 5 | cinco | |
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9 | 4 | cuatro | |
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26 | 19 | diecinueve | |
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12 | 18 | dieciocho | |
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30 | 16 | dieciseis | |
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24 | 17 | diecisiete | |
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2 | 10 | diez | |
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23 | 12 | doce | |
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11 | 2 | dos | |
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25 | 9 | nueve | |
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31 | 8 | ocho | |
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1 | 11 | once | |
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28 | 15 | quince | |
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32 | 6 | seis | xyzzyxyzzyxyzzyxyzzyxyzzyxyzzy | 500000
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29 | 7 | siete | |
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15 | 13 | trece | |
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22 | 30 | treinta | |
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17 | 32 | treinta y dos | |
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3 | 31 | treinta y uno | |
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5 | 3 | tres | |
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20 | 1 | uno | |
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6 | 20 | veinte | |
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14 | 25 | veinticinco | |
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21 | 24 | veinticuatro | |
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4 | 22 | veintidos | |
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19 | 29 | veintinueve | |
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16 | 28 | veintiocho | |
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27 | 26 | veintiseis | |
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13 | 27 | veintisiete | |
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7 | 23 | veintitres | |
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8 | 21 | veintiuno | |
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(32 rows)
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-- Verify that inheritance link still works
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INSERT INTO clstr_tst_inh VALUES (0, 100, 'in child table');
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SELECT a,b,c,substring(d for 30), length(d) from clstr_tst;
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a | b | c | substring | length
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----+-----+----------------+--------------------------------+--------
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10 | 14 | catorce | |
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18 | 5 | cinco | |
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9 | 4 | cuatro | |
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26 | 19 | diecinueve | |
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12 | 18 | dieciocho | |
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30 | 16 | dieciseis | |
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24 | 17 | diecisiete | |
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2 | 10 | diez | |
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23 | 12 | doce | |
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11 | 2 | dos | |
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25 | 9 | nueve | |
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31 | 8 | ocho | |
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1 | 11 | once | |
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28 | 15 | quince | |
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32 | 6 | seis | xyzzyxyzzyxyzzyxyzzyxyzzyxyzzy | 500000
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29 | 7 | siete | |
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15 | 13 | trece | |
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22 | 30 | treinta | |
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17 | 32 | treinta y dos | |
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3 | 31 | treinta y uno | |
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5 | 3 | tres | |
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20 | 1 | uno | |
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6 | 20 | veinte | |
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14 | 25 | veinticinco | |
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21 | 24 | veinticuatro | |
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4 | 22 | veintidos | |
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19 | 29 | veintinueve | |
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16 | 28 | veintiocho | |
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27 | 26 | veintiseis | |
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13 | 27 | veintisiete | |
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7 | 23 | veintitres | |
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8 | 21 | veintiuno | |
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0 | 100 | in child table | |
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(33 rows)
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-- Verify that foreign key link still works
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INSERT INTO clstr_tst (b, c) VALUES (1111, 'this should fail');
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ERROR: clstr_tst_con referential integrity violation - key referenced from clstr_tst not found in clstr_tst_s
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SELECT conname FROM pg_constraint WHERE conrelid = 'clstr_tst'::regclass;
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conname
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----------------
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clstr_tst_pkey
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clstr_tst_con
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(2 rows)
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SELECT relname, relkind,
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EXISTS(SELECT 1 FROM pg_class WHERE oid = c.reltoastrelid) AS hastoast
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FROM pg_class c WHERE relname LIKE 'clstr_tst%' ORDER BY relname;
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relname | relkind | hastoast
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----------------------+---------+----------
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clstr_tst | r | t
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clstr_tst_a_seq | S | f
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clstr_tst_b | i | f
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clstr_tst_b_c | i | f
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clstr_tst_c | i | f
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clstr_tst_c_b | i | f
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clstr_tst_inh | r | t
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clstr_tst_pkey | i | f
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clstr_tst_s | r | f
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clstr_tst_s_pkey | i | f
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clstr_tst_s_rf_a_seq | S | f
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(11 rows)
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-- Verify that indisclustered is correctly set
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SELECT pg_class.relname FROM pg_index, pg_class, pg_class AS pg_class_2
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WHERE pg_class.oid=indexrelid
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AND indrelid=pg_class_2.oid
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AND pg_class_2.relname = 'clstr_tst'
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AND indisclustered;
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relname
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-------------
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clstr_tst_c
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(1 row)
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