当我们有10多个元密钥时，我就可以百分之百地使用服务器。是否有任何选项可以优化查询。

 $meta_query = array(\'relation\' => \'AND\');
    foreach ($requestData as  $key => $value) {
        $meta_query[] = array(
            \'key\' => $value,
            \'value\' => \'1\',
            \'compare\' => \'=\'
        );
    }

    $args = array( \'post_type\' => \'healthcare\', \'post_status\' => \'publish\', \'posts_per_page\' => -1, \'meta_query\' => $meta_query);

    $loop = new WP_Query( $args );
    $total = $loop->found_posts;