如果删除文档，则Elasticsearch更新并且upsert不起作用

Question

Looking at the documentation here: it suggests I can pass a doc in for update and if it doesn't exist then insert it but I get the following error:

_index":"products","_type":"product","_id":"66","_version":1,"result":"not_found

This error is correct because the document with id of 66 no longer exists so I want it to insert rather than update. I can obviously do 2 queries, check if it exists then update/insert accordingly but why is this request not inserting as I expect?

           $params = [
                'index' => 'products',
                'type' => 'product',
                'id' => $product['id'],
                'body' => [
                    'doc' => [
                        'manufacturer' => $product['manufacturer'],
                        ...
                        ...
                    ],
                    'doc_as_upsert' => true
                ]
            ];

            $response = $client->update($params);