UGears Model PDF Instructions

SELECT wp_posts.* FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) INNER JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id ) WHERE 1=1 AND ( ( wp_postmeta.meta_key = 'how_to_pdf' AND wp_postmeta.meta_value != '' ) AND ( mt1.meta_key = '_stock_status' AND mt1.meta_value = 'instock' ) ) AND wp_posts.post_type = 'product' AND (wp_posts.post_status = 'publish') GROUP BY wp_posts.ID ORDER BY wp_posts.menu_order, wp_posts.post_date DESC