blob: 6f5d7b4c71ea183255058babd08951ec8d33fab4 (
plain)
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
|
# frozen_string_literal: true
class AddCiNamespaceMirrorsUnnestIndexOnTraversalIds < Gitlab::Database::Migration[1.0]
disable_ddl_transaction!
INDEX_NAME = 'index_ci_namespace_mirrors_on_traversal_ids_unnest'
def up
return if index_exists_by_name?(:ci_namespace_mirrors, INDEX_NAME)
# We add only 4-levels since on average it is not expected that namespaces
# will be so granular beyond this point
disable_statement_timeout do
execute <<-SQL
CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON ci_namespace_mirrors
USING btree ((traversal_ids[1]), (traversal_ids[2]), (traversal_ids[3]), (traversal_ids[4]))
INCLUDE (traversal_ids, namespace_id)
SQL
end
end
def down
remove_concurrent_index_by_name(:ci_namespace_mirrors, INDEX_NAME)
end
end
|
