'post', 'post_status' => 'publish', 'posts_per_page' => -1, // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query -- This is an admin tool specifically designed to query missing metadata. 'meta_query' => array( array( 'key' => '_thumbnail_id', 'compare' => 'NOT EXISTS' ) ) ); $query = new WP_Query($args); ?>