elaticsearch 对两个字段进行求值排序

这里需要用到script脚本，示例如下:

$params['body']['sort'] = [
        "_script" => [
            "script" => [
                "inline" => "doc['zwk_zkrs'].value > 0 ? doc['zwk_hege'].value/doc['zwk_zkrs'].value : 0"
            ],
            "type" => "number",
            "order" => "desc"
        ]
];