curl -XPOST "http://localhost:9200/.kibana/index-pattern" -H 'Content-  Type: application/json' -d'
{
  "title" : "index_name",
  "timeFieldName" : "execution_time"
}'

{
  "error": {
    "root_cause": [
      {
        "type": "illegal_argument_exception",
        "reason": "Rejecting mapping update to [.kibana] as the final mapping would have more than 1 type: [index-pattern, doc]"
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "Rejecting mapping update to [.kibana] as the final mapping would have more than 1 type: [index-pattern, doc]"
  },
  "status": 400
}