text: -- experiment catalog
  --- disable foreign key checks
  SET FOREIGN_KEY_CHECKS=0;
  update GATEWAY set REQUESTER_USERNAME = lower(REQUESTER_USERNAME);
  update USERS set AIRAVATA_INTERNAL_USER_ID = lower(AIRAVATA_INTERNAL_USER_ID), USER_NAME = lower(USER_NAME);
  update GATEWAY_WORKER set USER_NAME = lower(USER_NAME);
  update PROJECT set USER_NAME = lower(USER_NAME);
  update PROJECT_USER set USER_NAME = lower(USER_NAME);
  update EXPERIMENT set USER_NAME = lower(USER_NAME);
  update PROCESS set USERNAME = lower(USERNAME);
  SET FOREIGN_KEY_CHECKS=1;