blob: 69f7822c05799699751a63923cb44ff188a63805 (
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
26
27
28
29
30
31
32
|
# frozen_string_literal: true
# See https://docs.gitlab.com/ee/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class AddTodosProjectAndIdIndex < Gitlab::Database::Migration[1.0]
# When using the methods "add_concurrent_index" or "remove_concurrent_index"
# you must disable the use of transactions
# as these methods can not run in an existing transaction.
# When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
# that either of them is the _only_ method called in the migration,
# any other changes should go in a separate migration.
# This ensures that upon failure _only_ the index creation or removing fails
# and can be retried or reverted easily.
#
# To disable transactions uncomment the following line and remove these
# comments:
disable_ddl_transaction!
NEW_INDEX_NAME = 'index_todos_on_project_id_and_id'
OLD_INDEX_NAME = 'index_todos_on_project_id'
def up
add_concurrent_index :todos, [:project_id, :id], name: NEW_INDEX_NAME
remove_concurrent_index_by_name :todos, OLD_INDEX_NAME
end
def down
add_concurrent_index :todos, :project_id, name: OLD_INDEX_NAME
remove_concurrent_index_by_name :todos, NEW_INDEX_NAME
end
end
|
