es7版本的问题

Question

请问如图的错误，我大概理解7.0版本以上是不允许连词长度最大值与最小值相差超过1，那么我需要在语法中如何显示的去配置对应的允许跨越长度差值？
相关截图：

Answer 1

rockybean 2022-04-10 16:23:46

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"
}

Answer 2

rockybean 2022-04-10 14:37:04

麻烦贴下文字版本，图片分辨率太低了，看不清楚

• 提问者 悟亦凡 #1

  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
  }