text: -- Drop existent indexes
  DROP INDEX IF EXISTS sims.idx_users_id_20210115_5_00;
  
  DROP INDEX IF EXISTS sims.idx_users_name_20210115_5_01;
  
  DROP INDEX IF EXISTS sims.idx_users_display_name_20210127_14_02;
  
  -- Create new index
  CREATE INDEX IF NOT EXISTS users_lower_last_name ON sims.users(lower(last_name));