レスポンスデータ
{
"kind": "bigquery#job",
"id": "bigquery-e2e:job_1429217599",
"jobReference": {"projectId": "bigquery-e2e", "jobId": "job_1429217599"},
"configuration": {...}
"status": {
"state": "RUNNING"
},
"statistics": {
"creationTime": "1429217642957",
"startTime": "1429217643549"
},
"user_email": "[email protected]"
}