text: -- folio_circulation.loan__t
  COMMENT ON COLUMN folio_circulation.loan__t.id IS 'Unique ID (generated UUID) of the loan';
  COMMENT ON COLUMN folio_circulation.loan__t.user_id IS 'ID of the patron the item was lent to. Required for open loans, not required for closed loans (for anonymization).';
  COMMENT ON COLUMN folio_circulation.loan__t.item_id IS 'ID of the item lent to the patron';
  COMMENT ON COLUMN folio_circulation.loan__t.item_effective_location_id_at_check_out IS 'The effective location, at the time of checkout, of the item loaned to the patron.';
  COMMENT ON COLUMN folio_circulation.loan__t.loan_date IS 'Date time when the loan began (typically represented according to rfc3339 section-5.6. Has not had the date-time format validation applied as was not supported at point of introduction and would now be a breaking change)';
  COMMENT ON COLUMN folio_circulation.loan__t.declared_lost_date IS 'Date and time the item was declared lost during this loan';
  COMMENT ON COLUMN folio_circulation.loan__t.due_date IS 'Date time when the item is due to be returned';
  COMMENT ON COLUMN folio_circulation.loan__t.return_date IS 'Date time when the item is returned and the loan ends (typically represented according to rfc3339 section-5.6. Has not had the date-time format validation applied as was not supported at point of introduction and would now be a breaking change)';
  COMMENT ON COLUMN folio_circulation.loan__t.system_return_date IS 'Date time when the returned item is actually processed';
  COMMENT ON COLUMN folio_circulation.loan__t."action" IS 'Last action performed on a loan (currently can be any value, values commonly used are checkedout and checkedin)';
  COMMENT ON COLUMN folio_circulation.loan__t.action_comment IS 'Comment to last action performed on a loan';
  COMMENT ON COLUMN folio_circulation.loan__t.item_status IS 'Last item status used in relation to this loan (currently can be any value, values commonly used are Checked out and Available)';
  COMMENT ON COLUMN folio_circulation.loan__t.renewal_count IS 'Count of how many times a loan has been renewed (incremented by the client)';
  COMMENT ON COLUMN folio_circulation.loan__t.loan_policy_id IS 'ID of last policy used in relation to this loan';
  COMMENT ON COLUMN folio_circulation.loan__t.checkout_service_point_id IS 'ID of the Service Point where the last checkout occured';
  COMMENT ON COLUMN folio_circulation.loan__t.patron_group_id_at_checkout IS 'Patron Group Id at checkout';
  COMMENT ON COLUMN folio_circulation.loan__t.claimed_returned_date IS 'Date and time the item was claimed returned for this loan';
  COMMENT ON COLUMN folio_circulation.loan__t.overdue_fine_policy_id IS 'ID of overdue fines policy at the time the item is check-in or renewed';
  COMMENT ON COLUMN folio_circulation.loan__t.lost_item_policy_id IS 'ID of lost item policy which determines when the item ages to lost and the associated fees or the associated fees if the patron declares the item lost.';
  COMMENT ON COLUMN folio_circulation.loan__t.checkin_service_point_id IS 'ID of the Service Point where the last checkin occurred';
  