'post', 'posts_per_page' => 3, 'meta_query' => array( 'relation' => 'OR', array( 'key' => '_gr_primary_checkbox', 'value' => false, 'type' => 'BOOLEAN' ), array( 'key' => '_gr_primary_checkbox', 'compare' => 'NOT EXISTS' ) )); query_posts( $args ); ?>