standard bigquery v2, support nested schema in query result

Please support nested schema field names in complex queries like SELECT ARRAY[STRUCT(1 AS a, 2 AS b, 3 AS c)] AS d

const BigQuery = require('@google-cloud/bigquery');
> BigQuery().query({ query: 'SELECT 1 AS cnt', useLegacySql: false }, function (err, data) { if (err) return console.error(err); console.dir(data, { depth: null, colors: true }); });
> [ { cnt: 1 } ]

This is right, the field name cnt is correctly used

> BigQuery().query({ query: 'SELECT ARRAY[STRUCT(1 AS a, 2 AS b, 3 AS c)] AS d', useLegacySql: false }, function (err, data) { if (err) return console.error(err); console.dir(data, { depth: null, colors: true }); });
> [ { d: [ { v: { f: [ { v: '1' }, { v: '2' }, { v: '3' } ] } } ] } ]

only the outer level field name d is in use, not others a, b, c,
all get default f and v, and all their values type, the 1,2,3 here should be integers

I have even more complex queries than this, all are like this only the outer one level schema field names / value types are got populated

A raw query over HTTP, the http tool is from httpie, just an advanced version of curl; after I get access token with same httpie tool from token allocation, I can do queries like this on command line, here the server response included correct schema with nested fields, so technically it should be possible to populate all inner level field names and value types correct

➸ time http --verbose --pretty=colors POST https://www.googleapis.com/bigquery/v2/projects/XXXXXXX/queries 'Authorization: Bearer XXXXXXXXXXXX' useLegacySql=false useQueryCache=false query='SELECT ARRAY[STRUCT(1 AS a, 2 AS b, 3 AS c)] AS d'
POST /bigquery/v2/projects/XXXXXXXXXXXXXX/queries HTTP/1.1
Content-Length: 113
Accept-Encoding: gzip, deflate
Host: www.googleapis.com
Accept: application/json, */*
User-Agent: HTTPie/0.9.6
Connection: keep-alive
Content-Type: application/json
Authorization: Bearer XXXXXXXXXXXXXXXXXXXXXX

{"useLegacySql": "false", "useQueryCache": "false", "query": "SELECT ARRAY[STRUCT(1 AS a, 2 AS b, 3 AS c)] AS d"}

HTTP/1.1 200 OK
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Wed, 14 Sep 2016 17:37:03 GMT
ETag: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
Vary: Origin
Vary: X-Origin
Content-Type: application/json; charset=UTF-8
Content-Encoding: gzip
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Server: GSE
Alt-Svc: quic=":443"; ma=2592000; v="36,35,34,33,32"
Transfer-Encoding: chunked

{
 "kind": "bigquery#queryResponse",
 "schema": {
  "fields": [
   {
    "name": "d",
    "type": "RECORD",
    "mode": "REPEATED",
    "fields": [
     {
      "name": "a",
      "type": "INTEGER",
      "mode": "NULLABLE"
     },
     {
      "name": "b",
      "type": "INTEGER",
      "mode": "NULLABLE"
     },
     {
      "name": "c",
      "type": "INTEGER",
      "mode": "NULLABLE"
     }
    ]
   }
  ]
 },
 "jobReference": {
  "projectId": "XXXXXXXXXXXXX",
  "jobId": "job_XXXXXXXXXXXXXXXXXXXXXXXXXXX"
 },
 "totalRows": "1",
 "rows": [
  {
   "f": [
    {
     "v": [
      {
       "v": {
        "f": [
         {
          "v": "1"
         },
         {
          "v": "2"
         },
         {
          "v": "3"
         }
        ]
       }
      }
     ]
    }
   ]
  }
 ],
 "totalBytesProcessed": "0",
 "jobComplete": true,
 "cacheHit": false
}

real    0m3.040s
user    0m0.364s
sys 0m0.020s

Environment details

OS: Linux
Node.js version: v6

I have search other issues here #1564 #1135 about nested schema, but for different purpose, I believe this ticket is different.