1--
2-- VACUUM
3--
4
5CREATE TABLE vactst (i INT);
6INSERT INTO vactst VALUES (1);
7INSERT INTO vactst SELECT * FROM vactst;
8INSERT INTO vactst SELECT * FROM vactst;
9INSERT INTO vactst SELECT * FROM vactst;
10INSERT INTO vactst SELECT * FROM vactst;
11INSERT INTO vactst SELECT * FROM vactst;
12INSERT INTO vactst SELECT * FROM vactst;
13INSERT INTO vactst SELECT * FROM vactst;
14INSERT INTO vactst SELECT * FROM vactst;
15INSERT INTO vactst SELECT * FROM vactst;
16INSERT INTO vactst SELECT * FROM vactst;
17INSERT INTO vactst SELECT * FROM vactst;
18INSERT INTO vactst VALUES (0);
19SELECT count(*) FROM vactst;
20DELETE FROM vactst WHERE i != 0;
21SELECT * FROM vactst;
22VACUUM FULL vactst;
23UPDATE vactst SET i = i + 1;
24INSERT INTO vactst SELECT * FROM vactst;
25INSERT INTO vactst SELECT * FROM vactst;
26INSERT INTO vactst SELECT * FROM vactst;
27INSERT INTO vactst SELECT * FROM vactst;
28INSERT INTO vactst SELECT * FROM vactst;
29INSERT INTO vactst SELECT * FROM vactst;
30INSERT INTO vactst SELECT * FROM vactst;
31INSERT INTO vactst SELECT * FROM vactst;
32INSERT INTO vactst SELECT * FROM vactst;
33INSERT INTO vactst SELECT * FROM vactst;
34INSERT INTO vactst SELECT * FROM vactst;
35INSERT INTO vactst VALUES (0);
36SELECT count(*) FROM vactst;
37DELETE FROM vactst WHERE i != 0;
38VACUUM (FULL) vactst;
39DELETE FROM vactst;
40SELECT * FROM vactst;
41
42VACUUM (FULL, FREEZE) vactst;
43VACUUM (ANALYZE, FULL) vactst;
44
45CREATE TABLE vaccluster (i INT PRIMARY KEY);
46ALTER TABLE vaccluster CLUSTER ON vaccluster_pkey;
47CLUSTER vaccluster;
48
49CREATE FUNCTION do_analyze() RETURNS VOID VOLATILE LANGUAGE SQL
50	AS 'ANALYZE pg_am';
51CREATE FUNCTION wrap_do_analyze(c INT) RETURNS INT IMMUTABLE LANGUAGE SQL
52	AS 'SELECT $1 FROM do_analyze()';
53CREATE INDEX ON vaccluster(wrap_do_analyze(i));
54INSERT INTO vaccluster VALUES (1), (2);
55ANALYZE vaccluster;
56
57-- Test ANALYZE in transaction, where the transaction surrounding
58-- analyze performed modifications. This tests for the bug at
59-- https://postgr.es/m/c7988239-d42c-ddc4-41db-171b23b35e4f%40ssinger.info
60-- (which hopefully is unlikely to be reintroduced), but also seems
61-- independently worthwhile to cover.
62INSERT INTO vactst SELECT generate_series(1, 300);
63DELETE FROM vactst WHERE i % 7 = 0; -- delete a few rows outside
64BEGIN;
65INSERT INTO vactst SELECT generate_series(301, 400);
66DELETE FROM vactst WHERE i % 5 <> 0; -- delete a few rows inside
67ANALYZE vactst;
68COMMIT;
69
70VACUUM FULL pg_am;
71VACUUM FULL pg_class;
72VACUUM FULL pg_database;
73VACUUM FULL vaccluster;
74VACUUM FULL vactst;
75
76VACUUM (DISABLE_PAGE_SKIPPING) vaccluster;
77
78-- PARALLEL option
79CREATE TABLE pvactst (i INT, a INT[], p POINT) with (autovacuum_enabled = off);
80INSERT INTO pvactst SELECT i, array[1,2,3], point(i, i+1) FROM generate_series(1,1000) i;
81CREATE INDEX btree_pvactst ON pvactst USING btree (i);
82CREATE INDEX hash_pvactst ON pvactst USING hash (i);
83CREATE INDEX brin_pvactst ON pvactst USING brin (i);
84CREATE INDEX gin_pvactst ON pvactst USING gin (a);
85CREATE INDEX gist_pvactst ON pvactst USING gist (p);
86CREATE INDEX spgist_pvactst ON pvactst USING spgist (p);
87
88-- VACUUM invokes parallel index cleanup
89SET min_parallel_index_scan_size to 0;
90VACUUM (PARALLEL 2) pvactst;
91
92-- VACUUM invokes parallel bulk-deletion
93UPDATE pvactst SET i = i WHERE i < 1000;
94VACUUM (PARALLEL 2) pvactst;
95
96UPDATE pvactst SET i = i WHERE i < 1000;
97VACUUM (PARALLEL 0) pvactst; -- disable parallel vacuum
98
99VACUUM (PARALLEL -1) pvactst; -- error
100VACUUM (PARALLEL 2, INDEX_CLEANUP FALSE) pvactst;
101VACUUM (PARALLEL 2, FULL TRUE) pvactst; -- error, cannot use both PARALLEL and FULL
102VACUUM (PARALLEL) pvactst; -- error, cannot use PARALLEL option without parallel degree
103
104-- Test different combinations of parallel and full options for temporary tables
105CREATE TEMPORARY TABLE tmp (a int PRIMARY KEY);
106CREATE INDEX tmp_idx1 ON tmp (a);
107VACUUM (PARALLEL 1, FULL FALSE) tmp; -- parallel vacuum disabled for temp tables
108VACUUM (PARALLEL 0, FULL TRUE) tmp; -- can specify parallel disabled (even though that's implied by FULL)
109RESET min_parallel_index_scan_size;
110DROP TABLE pvactst;
111
112-- INDEX_CLEANUP option
113CREATE TABLE no_index_cleanup (i INT PRIMARY KEY, t TEXT);
114-- Use uncompressed data stored in toast.
115CREATE INDEX no_index_cleanup_idx ON no_index_cleanup(t);
116ALTER TABLE no_index_cleanup ALTER COLUMN t SET STORAGE EXTERNAL;
117INSERT INTO no_index_cleanup(i, t) VALUES (generate_series(1,30),
118    repeat('1234567890',269));
119-- index cleanup option is ignored if VACUUM FULL
120VACUUM (INDEX_CLEANUP TRUE, FULL TRUE) no_index_cleanup;
121VACUUM (FULL TRUE) no_index_cleanup;
122-- Toast inherits the value from its parent table.
123ALTER TABLE no_index_cleanup SET (vacuum_index_cleanup = false);
124DELETE FROM no_index_cleanup WHERE i < 15;
125-- Nothing is cleaned up.
126VACUUM no_index_cleanup;
127-- Both parent relation and toast are cleaned up.
128ALTER TABLE no_index_cleanup SET (vacuum_index_cleanup = true);
129VACUUM no_index_cleanup;
130-- Parameter is set for both the parent table and its toast relation.
131INSERT INTO no_index_cleanup(i, t) VALUES (generate_series(31,60),
132    repeat('1234567890',269));
133DELETE FROM no_index_cleanup WHERE i < 45;
134-- Only toast index is cleaned up.
135ALTER TABLE no_index_cleanup SET (vacuum_index_cleanup = false,
136    toast.vacuum_index_cleanup = true);
137VACUUM no_index_cleanup;
138-- Only parent is cleaned up.
139ALTER TABLE no_index_cleanup SET (vacuum_index_cleanup = true,
140    toast.vacuum_index_cleanup = false);
141VACUUM no_index_cleanup;
142-- Test some extra relations.
143VACUUM (INDEX_CLEANUP FALSE) vaccluster;
144VACUUM (INDEX_CLEANUP FALSE) vactst; -- index cleanup option is ignored if no indexes
145VACUUM (INDEX_CLEANUP FALSE, FREEZE TRUE) vaccluster;
146
147-- TRUNCATE option
148CREATE TABLE vac_truncate_test(i INT NOT NULL, j text)
149	WITH (vacuum_truncate=true, autovacuum_enabled=false);
150INSERT INTO vac_truncate_test VALUES (1, NULL), (NULL, NULL);
151VACUUM (TRUNCATE FALSE) vac_truncate_test;
152SELECT pg_relation_size('vac_truncate_test') > 0;
153VACUUM vac_truncate_test;
154SELECT pg_relation_size('vac_truncate_test') = 0;
155VACUUM (TRUNCATE FALSE, FULL TRUE) vac_truncate_test;
156DROP TABLE vac_truncate_test;
157
158-- partitioned table
159CREATE TABLE vacparted (a int, b char) PARTITION BY LIST (a);
160CREATE TABLE vacparted1 PARTITION OF vacparted FOR VALUES IN (1);
161INSERT INTO vacparted VALUES (1, 'a');
162UPDATE vacparted SET b = 'b';
163VACUUM (ANALYZE) vacparted;
164VACUUM (FULL) vacparted;
165VACUUM (FREEZE) vacparted;
166
167-- check behavior with duplicate column mentions
168VACUUM ANALYZE vacparted(a,b,a);
169ANALYZE vacparted(a,b,b);
170
171-- multiple tables specified
172VACUUM vaccluster, vactst;
173VACUUM vacparted, does_not_exist;
174VACUUM (FREEZE) vacparted, vaccluster, vactst;
175VACUUM (FREEZE) does_not_exist, vaccluster;
176VACUUM ANALYZE vactst, vacparted (a);
177VACUUM ANALYZE vactst (does_not_exist), vacparted (b);
178VACUUM FULL vacparted, vactst;
179VACUUM FULL vactst, vacparted (a, b), vaccluster (i);
180ANALYZE vactst, vacparted;
181ANALYZE vacparted (b), vactst;
182ANALYZE vactst, does_not_exist, vacparted;
183ANALYZE vactst (i), vacparted (does_not_exist);
184ANALYZE vactst, vactst;
185BEGIN;  -- ANALYZE behaves differently inside a transaction block
186ANALYZE vactst, vactst;
187COMMIT;
188
189-- parenthesized syntax for ANALYZE
190ANALYZE (VERBOSE) does_not_exist;
191ANALYZE (nonexistent-arg) does_not_exist;
192ANALYZE (nonexistentarg) does_not_exit;
193
194-- ensure argument order independence, and that SKIP_LOCKED on non-existing
195-- relation still errors out.  Suppress WARNING messages caused by concurrent
196-- autovacuums.
197SET client_min_messages TO 'ERROR';
198ANALYZE (SKIP_LOCKED, VERBOSE) does_not_exist;
199ANALYZE (VERBOSE, SKIP_LOCKED) does_not_exist;
200
201-- SKIP_LOCKED option
202VACUUM (SKIP_LOCKED) vactst;
203VACUUM (SKIP_LOCKED, FULL) vactst;
204ANALYZE (SKIP_LOCKED) vactst;
205RESET client_min_messages;
206
207-- ensure VACUUM and ANALYZE don't have a problem with serializable
208SET default_transaction_isolation = serializable;
209VACUUM vactst;
210ANALYZE vactst;
211RESET default_transaction_isolation;
212BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
213ANALYZE vactst;
214COMMIT;
215
216DROP TABLE vaccluster;
217DROP TABLE vactst;
218DROP TABLE vacparted;
219DROP TABLE no_index_cleanup;
220
221-- relation ownership, WARNING logs generated as all are skipped.
222CREATE TABLE vacowned (a int);
223CREATE TABLE vacowned_parted (a int) PARTITION BY LIST (a);
224CREATE TABLE vacowned_part1 PARTITION OF vacowned_parted FOR VALUES IN (1);
225CREATE TABLE vacowned_part2 PARTITION OF vacowned_parted FOR VALUES IN (2);
226CREATE ROLE regress_vacuum;
227SET ROLE regress_vacuum;
228-- Simple table
229VACUUM vacowned;
230ANALYZE vacowned;
231VACUUM (ANALYZE) vacowned;
232-- Catalog
233VACUUM pg_catalog.pg_class;
234ANALYZE pg_catalog.pg_class;
235VACUUM (ANALYZE) pg_catalog.pg_class;
236-- Shared catalog
237VACUUM pg_catalog.pg_authid;
238ANALYZE pg_catalog.pg_authid;
239VACUUM (ANALYZE) pg_catalog.pg_authid;
240-- Partitioned table and its partitions, nothing owned by other user.
241-- Relations are not listed in a single command to test ownership
242-- independently.
243VACUUM vacowned_parted;
244VACUUM vacowned_part1;
245VACUUM vacowned_part2;
246ANALYZE vacowned_parted;
247ANALYZE vacowned_part1;
248ANALYZE vacowned_part2;
249VACUUM (ANALYZE) vacowned_parted;
250VACUUM (ANALYZE) vacowned_part1;
251VACUUM (ANALYZE) vacowned_part2;
252RESET ROLE;
253-- Partitioned table and one partition owned by other user.
254ALTER TABLE vacowned_parted OWNER TO regress_vacuum;
255ALTER TABLE vacowned_part1 OWNER TO regress_vacuum;
256SET ROLE regress_vacuum;
257VACUUM vacowned_parted;
258VACUUM vacowned_part1;
259VACUUM vacowned_part2;
260ANALYZE vacowned_parted;
261ANALYZE vacowned_part1;
262ANALYZE vacowned_part2;
263VACUUM (ANALYZE) vacowned_parted;
264VACUUM (ANALYZE) vacowned_part1;
265VACUUM (ANALYZE) vacowned_part2;
266RESET ROLE;
267-- Only one partition owned by other user.
268ALTER TABLE vacowned_parted OWNER TO CURRENT_USER;
269SET ROLE regress_vacuum;
270VACUUM vacowned_parted;
271VACUUM vacowned_part1;
272VACUUM vacowned_part2;
273ANALYZE vacowned_parted;
274ANALYZE vacowned_part1;
275ANALYZE vacowned_part2;
276VACUUM (ANALYZE) vacowned_parted;
277VACUUM (ANALYZE) vacowned_part1;
278VACUUM (ANALYZE) vacowned_part2;
279RESET ROLE;
280-- Only partitioned table owned by other user.
281ALTER TABLE vacowned_parted OWNER TO regress_vacuum;
282ALTER TABLE vacowned_part1 OWNER TO CURRENT_USER;
283SET ROLE regress_vacuum;
284VACUUM vacowned_parted;
285VACUUM vacowned_part1;
286VACUUM vacowned_part2;
287ANALYZE vacowned_parted;
288ANALYZE vacowned_part1;
289ANALYZE vacowned_part2;
290VACUUM (ANALYZE) vacowned_parted;
291VACUUM (ANALYZE) vacowned_part1;
292VACUUM (ANALYZE) vacowned_part2;
293RESET ROLE;
294DROP TABLE vacowned;
295DROP TABLE vacowned_parted;
296DROP ROLE regress_vacuum;
297