略微加速

PUT /my_index
{
    "mappings": {
        "my_type": {
            "dynamic":      "strict", 
            "properties": {
                "title":  { "type": "string"},
                "stash":  {
                    "type":     "object",
                    "dynamic":  true 
                }
            }
        }
    }
}

PUT /my_index/my_type/1
{
    "title":   "This doc adds a new field",
    "stash": { "new_field": "Success!" }
}

PUT /my_index/my_type/1
{
    "title":     "This throws a StrictDynamicMappingException",
    "new_field": "Fail!"
}