1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
# frozen_string_literal: true
class AddVacuumTypeToAutovacuumStatus < Gitlab::Database::Migration[2.1]
def up
execute <<~SQL
DROP VIEW IF EXISTS postgres_autovacuum_activity;
CREATE VIEW postgres_autovacuum_activity AS
WITH processes as
(
SELECT query, query_start, (regexp_matches(query, '^autovacuum: VACUUM (\\w+)\\.(\\w+)')) as matches,
CASE WHEN (query ~~* '%wraparound)'::text) THEN true ELSE false END as wraparound_prevention
FROM postgres_pg_stat_activity_autovacuum()
WHERE query ~* '^autovacuum: VACUUM \\w+\\.\\w+'
)
SELECT matches[1] || '.' || matches[2] as table_identifier,
matches[1] as schema,
matches[2] as table,
query_start as vacuum_start,
wraparound_prevention
FROM processes;
COMMENT ON VIEW postgres_autovacuum_activity IS 'Contains information about PostgreSQL backends currently performing autovacuum operations on the tables indicated here.';
SQL
end
def down
execute <<~SQL
DROP VIEW IF EXISTS postgres_autovacuum_activity;
CREATE VIEW postgres_autovacuum_activity AS
WITH processes as
(
SELECT query, query_start, (regexp_matches(query, '^autovacuum: VACUUM (\\w+)\\.(\\w+)')) as matches
FROM postgres_pg_stat_activity_autovacuum()
WHERE query ~* '^autovacuum: VACUUM \\w+\\.\\w+'
)
SELECT matches[1] || '.' || matches[2] as table_identifier,
matches[1] as schema,
matches[2] as table,
query_start as vacuum_start
FROM processes;
COMMENT ON VIEW postgres_autovacuum_activity IS 'Contains information about PostgreSQL backends currently performing autovacuum operations on the tables indicated here.';
SQL
end
end
|
