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# frozen_string_literal: true
class AddIndexToResourceGroupId < ActiveRecord::Migration[5.2]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
INDEX_NAME = 'index_for_resource_group'.freeze
disable_ddl_transaction!
def up
add_concurrent_index :ci_builds, %i[resource_group_id id], where: 'resource_group_id IS NOT NULL', name: INDEX_NAME
add_concurrent_foreign_key :ci_builds, :ci_resource_groups, column: :resource_group_id, on_delete: :nullify
end
def down
remove_foreign_key_if_exists :ci_builds, column: :resource_group_id
remove_concurrent_index_by_name :ci_builds, INDEX_NAME
end
end
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