26 lines
926 B
Ruby
26 lines
926 B
Ruby
# frozen_string_literal: true
|
|
|
|
class AddMissingIndexToServiceUniqueInstancePerType < ActiveRecord::Migration[6.0]
|
|
include Gitlab::Database::MigrationHelpers
|
|
|
|
DOWNTIME = false
|
|
|
|
disable_ddl_transaction!
|
|
|
|
# This is a corrective migration to keep the index on instance column.
|
|
# Upgrade from 12.7 to 12.9 removes the instance column as it was first added
|
|
# in the normal migration and then removed in the post migration.
|
|
#
|
|
# 12.8 removed the instance column in a post deployment migration https://gitlab.com/gitlab-org/gitlab/-/merge_requests/24885
|
|
# 12.9 added the instance column in a normal migration https://gitlab.com/gitlab-org/gitlab/-/merge_requests/25714
|
|
def up
|
|
unless index_exists_by_name?(:services, 'index_services_on_type_and_instance')
|
|
add_concurrent_index(:services, [:type, :instance], unique: true, where: 'instance IS TRUE')
|
|
end
|
|
end
|
|
|
|
def down
|
|
# Does not apply
|
|
end
|
|
end
|