Array ( [posts_per_page] => -1 [post_type] => product [post_status] => publish [meta_query] => Array ( [relation] => OR [0] => Array ( [key] => _sale_price [compare] => NOT EXISTS ) [1] => Array ( [key] => _sale_price [value] => 0 [compare] => <= [type] => NUMERIC ) ) [orderby] => Array ( [meta_value] => ASC [title] => ASC ) )

Array ( [posts_per_page] => -1 [post_type] => product [post_status] => publish [meta_query] => Array ( [0] => Array ( [key] => _sale_price [value] => 0 [compare] => > [type] => NUMERIC ) ) [orderby] => Array ( [meta_value] => ASC [title] => ASC ) )