Elasticsearch schema properties

schema.json

Products
 * id : integer
 * name : string
 * date : date
 * price : float
 * items_available : integer

I created the index "testindex"  using the mapping API, here is what I
find in the logs :

 Put mapping [product] with source [{
  "product" : {
    "type" : "object",
    "dynamic" : true,
    "enabled" : true,
    "pathType" : "full",
    "dateFormats" : [ "dateOptionalTime" ],
    "boostField" : {
      "name" : "_boost"
    },
    "properties" : {
      "id" : {
        "type" : "integer",
        "indexName" : "id",
        "index" : "not_analyzed",
        "store" : "yes",
        "termVector" : "no",
        "boost" : 1.0,
        "omitNorms" : true,
        "omitTermFreqAndPositions" : true,
        "precisionStep" : 4
      },
      "price" : {
        "type" : "float",
        "indexName" : "price",
        "index" : "not_analyzed",
        "store" : "yes",
        "termVector" : "no",
        "boost" : 1.0,
        "omitNorms" : true,
        "omitTermFreqAndPositions" : true,
        "precisionStep" : 4
      },
      "items_available" : {
        "type" : "integer",
        "indexName" : "items_available",
        "index" : "not_analyzed",
        "store" : "yes",
        "termVector" : "no",
        "boost" : 1.0,
        "omitNorms" : true,
        "omitTermFreqAndPositions" : true,
        "precisionStep" : 4
      },
      "name" : {
        "type" : "string",
        "indexName" : "name",
        "index" : "analyzed",
        "store" : "yes",
        "termVector" : "no",
        "boost" : 1.0,
        "omitNorms" : false,
        "omitTermFreqAndPositions" : false
      },
      "date" : {
        "type" : "date",
        "indexName" : "date",
        "index" : "not_analyzed",
        "store" : "yes",
        "termVector" : "no",
        "boost" : 1.0,
        "omitNorms" : true,
        "omitTermFreqAndPositions" : true,
        "precisionStep" : 4,
        "format" : "YYYY-MM-dd"
      }
    }
  }
}] 


http://www.lucidimagination.com/content/scaling-lucene-and-solr#d0e71