WooCommerce: Display ONLY on-sale products in Shop

Question

I need to create a products archive page (usually the Shop page in WooCommerce) but displays ONLY the ON SALE<

Answer 1

I managed to filter out the ON SALE products with the code below placed just above the if ( have_posts() ) : line...

$args = array(
    'post_type'      => 'product',
    'meta_query'     => array(
        'relation' => 'OR',
        array( // Simple products type
            'key'           => '_sale_price',
            'value'         => 0,
            'compare'       => '>',
            'type'          => 'numeric'
        ),
        array( // Variable products type
            'key'           => '_min_variation_sale_price',
            'value'         => 0,
            'compare'       => '>',
            'type'          => 'numeric'
        )
    )
);

query_posts( $args );

The code is placed in a copy of archive-product.php which I renamed archive-product_sale.php and made as a page template.