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--
-- VACUUM
--
CREATE TABLE vactst (i INT);
INSERT INTO vactst VALUES (1);
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst VALUES (0);
SELECT count(*) FROM vactst;
count
-------
2049
(1 row)
DELETE FROM vactst WHERE i != 0;
SELECT * FROM vactst;
i
---
0
(1 row)
VACUUM FULL vactst;
UPDATE vactst SET i = i + 1;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst SELECT * FROM vactst;
INSERT INTO vactst VALUES (0);
SELECT count(*) FROM vactst;
count
-------
2049
(1 row)
DELETE FROM vactst WHERE i != 0;
VACUUM (FULL) vactst;
DELETE FROM vactst;
SELECT * FROM vactst;
i
---
(0 rows)
VACUUM (FULL, FREEZE) vactst;
VACUUM (ANALYZE, FULL) vactst;
CREATE TABLE vaccluster (i INT PRIMARY KEY);
ALTER TABLE vaccluster CLUSTER ON vaccluster_pkey;
CLUSTER vaccluster;
CREATE FUNCTION do_analyze() RETURNS VOID VOLATILE LANGUAGE SQL
AS 'ANALYZE pg_am';
CREATE FUNCTION wrap_do_analyze(c INT) RETURNS INT IMMUTABLE LANGUAGE SQL
AS 'SELECT $1 FROM do_analyze()';
CREATE INDEX ON vaccluster(wrap_do_analyze(i));
INSERT INTO vaccluster VALUES (1), (2);
ANALYZE vaccluster;
ERROR: ANALYZE cannot be executed from VACUUM or ANALYZE
CONTEXT: SQL function "do_analyze" statement 1
SQL function "wrap_do_analyze" statement 1
VACUUM FULL pg_am;
VACUUM FULL pg_class;
VACUUM FULL pg_database;
VACUUM FULL vaccluster;
ERROR: ANALYZE cannot be executed from VACUUM or ANALYZE
CONTEXT: SQL function "do_analyze" statement 1
SQL function "wrap_do_analyze" statement 1
VACUUM FULL vactst;
VACUUM (DISABLE_PAGE_SKIPPING) vaccluster;
DROP TABLE vaccluster;
DROP TABLE vactst;
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