class CreateGroupPinnedStatuses < ActiveRecord::Migration[5.2] disable_ddl_transaction! def change create_table :group_pinned_statuses do |t| t.belongs_to :status, foreign_key: { on_delete: :cascade }, null: false t.belongs_to :group, foreign_key: { on_delete: :cascade }, null: false end add_index :group_pinned_statuses, [:status_id, :group_id], unique: true, algorithm: :concurrently end end