text: /* cleanup deleted user project members */
  DELETE FROM project_member pm WHERE pm.entity_type = 'u' AND EXISTS (SELECT NULL FROM harbor_user u WHERE pm.entity_id = u.user_id AND u.deleted = true );
  
  ALTER TABLE replication_policy ADD COLUMN IF NOT EXISTS speed_kb int;
  
  /* add version fields for lock free quota */
  ALTER TABLE quota ADD COLUMN IF NOT EXISTS version bigint DEFAULT 0;
  ALTER TABLE quota_usage ADD COLUMN IF NOT EXISTS version bigint DEFAULT 0;
  