has asked a federal appeals court to review a US judge’s order giving the
go-ahead for a huge sex discrimination lawsuit.
US retail giant said the class-action case, involving up to 1.6m present and
former female employees, was "unmanageable and unconstitutional".
complainants allege that women were systematically paid less than men and
passed over for promotion.
case would be the biggest US civil rights case against a private employer.
San Francisco appeals court did not comment on Wal-Mart’s request.