text: /*
   * Copyright © 2019 Lisk Foundation
   *
   * See the LICENSE file at the top-level directory of this distribution
   * for licensing information.
   *
   * Unless otherwise agreed in a custom licensing agreement with the Lisk Foundation,
   * no part of this software, including this file, may be copied, modified,
   * propagated, or distributed except according to the terms contained in the
   * LICENSE file.
   *
   * Removal or modification of this copyright notice is prohibited.
   */
  
  
  /*
    DESCRIPTION: Add constraints to improve upserts.
  
    PARAMETERS: None
  */
  
  ALTER TABLE "peers"
    ADD CONSTRAINT "address_unique" UNIQUE
    USING INDEX "peers_unique";
  