小编Aks*_*rla的帖子

对于我的问题，我使用json_aggin join 来聚合我的结果。但这会导致嵌套数组序列。

询问：

 SELECT c.*,
       json_agg(ci.national_id) AS national_id,
       json_agg(a.address) AS address
FROM company AS c
LEFT JOIN
  (SELECT company_id,
          json_agg(json_build_object('value', national_id, 'country', country_code)) AS national_id
   FROM company_identification
   GROUP BY company_id) AS ci ON ci.company_id = c.id
LEFT JOIN
  (SELECT company_id,
          json_agg(address.*) AS address
   FROM address
   GROUP BY company_id) AS a ON a.company_id = c.id
GROUP BY c.id  

结果：

 [
  {
    "id": "c876967d-dd8b-4068-88f4-57a438a2015c",
    "name": "S.A.1",
    "nationalId": [
      [
        {
          "value": "string",
          "country": "CL"
        }
      ]
    ],
    "address": [ …

我一直在为WebRtc使用getUserMedia()一段时间,但自从最新的浏览器更新以来我一直无法使用它.在以前的版本工作正常.

受影响的浏览器版本Firefox - 57.0.4,Chrome - 63.0.3239.132

示例代码:

navigator.getUserMedia({ "audio": true, "video": false }, function (stream) {
  console.log(stream);
  localStream = stream;

},logError);

如果有人在谷歌示例代码https://webrtc.github.io/samples/src/content/getusermedia/gum/中收到此错误,请检查此项

这个问题有什么解决方法吗？需要帮忙.谢谢