20160616103948_add_unique_index_to_keys_fingerprint.rb 271 Bytes EditWeb IDE 1 2 3 4 5 6 7 8 9 10 11 12 13 class AddUniqueIndexToKeysFingerprint < ActiveRecord::Migration include Gitlab::Database::MigrationHelpers disable_ddl_transaction! def up add_concurrent_index :keys, :fingerprint, unique: true end def down remove_index :keys, :fingerprint end end