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This is analogous to the syntax allowed for VACUUM. This allows us to avoid making new options reserved keywords and makes it easier to allow arbitrary argument order. Oh, and it's consistent with the other commands, too. Author: Nathan Bossart Reviewed-By: Michael Paquier, Masahiko Sawada Discussion: https://postgr.es/m/D3FC73E2-9B1A-4DB4-8180-55F57D116B4E@amazon.com
98 lines
3 KiB
SQL
98 lines
3 KiB
SQL
--
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-- VACUUM
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--
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CREATE TABLE vactst (i INT);
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INSERT INTO vactst VALUES (1);
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst VALUES (0);
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SELECT count(*) FROM vactst;
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DELETE FROM vactst WHERE i != 0;
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SELECT * FROM vactst;
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VACUUM FULL vactst;
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UPDATE vactst SET i = i + 1;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst SELECT * FROM vactst;
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INSERT INTO vactst VALUES (0);
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SELECT count(*) FROM vactst;
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DELETE FROM vactst WHERE i != 0;
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VACUUM (FULL) vactst;
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DELETE FROM vactst;
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SELECT * FROM vactst;
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VACUUM (FULL, FREEZE) vactst;
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VACUUM (ANALYZE, FULL) vactst;
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CREATE TABLE vaccluster (i INT PRIMARY KEY);
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ALTER TABLE vaccluster CLUSTER ON vaccluster_pkey;
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CLUSTER vaccluster;
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CREATE FUNCTION do_analyze() RETURNS VOID VOLATILE LANGUAGE SQL
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AS 'ANALYZE pg_am';
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CREATE FUNCTION wrap_do_analyze(c INT) RETURNS INT IMMUTABLE LANGUAGE SQL
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AS 'SELECT $1 FROM do_analyze()';
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CREATE INDEX ON vaccluster(wrap_do_analyze(i));
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INSERT INTO vaccluster VALUES (1), (2);
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ANALYZE vaccluster;
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VACUUM FULL pg_am;
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VACUUM FULL pg_class;
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VACUUM FULL pg_database;
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VACUUM FULL vaccluster;
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VACUUM FULL vactst;
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VACUUM (DISABLE_PAGE_SKIPPING) vaccluster;
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-- partitioned table
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CREATE TABLE vacparted (a int, b char) PARTITION BY LIST (a);
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CREATE TABLE vacparted1 PARTITION OF vacparted FOR VALUES IN (1);
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INSERT INTO vacparted VALUES (1, 'a');
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UPDATE vacparted SET b = 'b';
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VACUUM (ANALYZE) vacparted;
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VACUUM (FULL) vacparted;
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VACUUM (FREEZE) vacparted;
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-- check behavior with duplicate column mentions
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VACUUM ANALYZE vacparted(a,b,a);
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ANALYZE vacparted(a,b,b);
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-- multiple tables specified
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VACUUM vaccluster, vactst;
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VACUUM vacparted, does_not_exist;
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VACUUM (FREEZE) vacparted, vaccluster, vactst;
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VACUUM (FREEZE) does_not_exist, vaccluster;
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VACUUM ANALYZE vactst, vacparted (a);
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VACUUM ANALYZE vactst (does_not_exist), vacparted (b);
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VACUUM FULL vacparted, vactst;
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VACUUM FULL vactst, vacparted (a, b), vaccluster (i);
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ANALYZE vactst, vacparted;
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ANALYZE vacparted (b), vactst;
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ANALYZE vactst, does_not_exist, vacparted;
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ANALYZE vactst (i), vacparted (does_not_exist);
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-- parenthesized syntax for ANALYZE
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ANALYZE (VERBOSE) does_not_exist;
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ANALYZE (nonexistant-arg) does_not_exist;
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DROP TABLE vaccluster;
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DROP TABLE vactst;
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DROP TABLE vacparted;
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