2回答

rockybean

2022-04-10

可以用下面的方法测试

PUT test_ngram_filter
{
  "settings": {
    "index": {
      "max_ngram_diff": 10
    },
    "analysis": {
      "analyzer": {
        "my_custom_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "stop",
            "lowercase",
            "3_5_grams"
          ]
        }
      },
      "filter": {
        "3_5_grams": {
          "type": "ngram",
          "min_gram": 3,
          "max_gram": 5
        }
      }
    }
  }
}

POST test_ngram_filter/_analyze
{
  "analyzer": "my_custom_analyzer",
  "text": "a Hello World"
}

0

0

rockybean

2022-04-10

麻烦贴下文字版本，图片分辨率太低了，看不清楚

0

1

悟亦凡

请求样例： POST /_analyze { "text": ["a Hello World"], "tokenizer": "standard", "filter": [ "stop", "lowercase", { "type":"ngram", "min_gram":2, "max_gram":4 } ] } 返回错误： { "error" : { "root_cause" : [ { "type" : "illegal_argument_exception", "reason" : "The difference between max_gram and min_gram in NGram Tokenizer must be less than or equal to: [1] but was [2]. This limit can be set by changing the [index.max_ngram_diff] index level setting." } ], "type" : "illegal_argument_exception", "reason" : "The difference between max_gram and min_gram in NGram Tokenizer must be less than or equal to: [1] but was [2]. This limit can be set by changing the [index.max_ngram_diff] index level setting." }, "status" : 400 }

2022-04-10

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