Как выполнить поиск в elasticsearch по окончанию?

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PUT /my_index
{
  "settings": {
    "****ysis": {
      "****yzer": {
        "my_edge_ngram_****yzer": {
          "tokenizer": "my_edge_ngram_tokenizer"
        }
      },
      "tokenizer": {
        "my_edge_ngram_tokenizer": {
          "type": "edge_ngram",
          "min_gram": 2,
          "max_gram": 20,
          "token_chars": [ "letter", "digit" ]
        }
      }
    }
  },
  "mappings": {
    "properties": {
      "my_field": {
        "type": "text",
        "****yzer": "my_edge_ngram_****yzer"
      }
    }
  }
}

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POST /my_index/_doc
{
  "my_field": "apple"
}

POST /my_index/_doc
{
  "my_field": "banana"
}

POST /my_index/_doc
{
  "my_field": "orange"
}

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GET /my_index/_search
{
  "query": {
    "prefix": {
      "my_field": "le"
    }
  }
}