text: --
  -- patch-drop-user-fields.sql
  --
  -- T188327. Drop old xx_user and xx_user_text fields, and defaults from xx_actor fields.
  
  ALTER TABLE /*_*/logging
    DROP INDEX /*i*/user_time,
    DROP INDEX /*i*/log_user_type_time,
    DROP INDEX /*i*/log_user_text_type_time,
    DROP INDEX /*i*/log_user_text_time,
    DROP COLUMN log_user,
    DROP COLUMN log_user_text,
    ALTER COLUMN log_actor DROP DEFAULT;
  