},
      "content_minhash": {
        "type": "text",
        "index": false
      },
      "content_minhash_bits": {
        "type": "minhash",
        "bit_string": true,
        "minhash_analyzer": "minhash_analyzer"
      },
      "content_length": {
        "type": "long"
      },
      "created": {
        "type": "date",
        "format": "date_optional_time"
      },
      "timestamp": {

        },
        "empty_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "char_filter": [
            "removeall_filter"
          ]
        },
        "minhash_analyzer": {
          "type": "custom",
          "char_filter": [
            "mapping_ja_filter"
          ],
          "tokenizer": "standard",
          "filter": [
            "asciifolding",