elasticsearch - Elasticsearch无法解析查询无法解析 'OR'

Question

我正在尝试从索引中搜索文档中的单词“OR”。
这是我输入的查询

GET index_name/_search
{
  "query": {
    "bool": {
      "filter": [
        {
          "query_string": {
            "query": "OR word1",
            "fields": [
              "field1"
            ]
          }
        }
      ]
    }
  }
}

我收到以下错误

{
  "error": {
    "root_cause": [
      {
        "type": "query_shard_exception",
        "reason": "Failed to parse query [OR word1]",
        "index_uuid": "Brju2MNeQ5m7sI02Q2Y4gw",
        "index": "index_name"
      }
    ],
    "type": "search_phase_execution_exception",
    "reason": "all shards failed",
    "phase": "query",
    "grouped": true,
    "failed_shards": [
      {
        "shard": 0,
        "index": "index_name",
        "node": "C5Suw-gaR7eehoH0WNGw1A",
        "reason": {
          "type": "query_shard_exception",
          "reason": "Failed to parse query [OR word1]",
          "index_uuid": "Brju2MNeQ5m7sI02Q2Y4gw",
          "index": "index_name",
          "caused_by": {
            "type": "parse_exception",
            "reason": "Cannot parse 'OR word1': Encountered \" <OR> \"OR \"\" at line 1, column 0.\nWas expecting one of:\n    <NOT> ...\n    \"+\" ...\n    \"-\" ...\n    <BAREOPER> ...\n    \"(\" ...\n    \"*\" ...\n    <QUOTED> ...\n    <TERM> ...\n    <PREFIXTERM> ...\n    <WILDTERM> ...\n    <REGEXPTERM> ...\n    \"[\" ...\n    \"{\" ...\n    <NUMBER> ...\n    <TERM> ...\n    ",
            "caused_by": {
              "type": "parse_exception",
              "reason": "Encountered \" <OR> \"OR \"\" at line 1, column 0.\nWas expecting one of:\n    <NOT> ...\n    \"+\" ...\n    \"-\" ...\n    <BAREOPER> ...\n    \"(\" ...\n    \"*\" ...\n    <QUOTED> ...\n    <TERM> ...\n    <PREFIXTERM> ...\n    <WILDTERM> ...\n    <REGEXPTERM> ...\n    \"[\" ...\n    \"{\" ...\n    <NUMBER> ...\n    <TERM> ...\n    "
            }
          }
        }
      }
    ]
  },
  "status": 400
}

为什么这是一个错误？如何克服这个错误？如果我从查询中删除单词“Or”，它可以正常工作，但是当我保留它时，会出现此错误

Answer 1

如果我很好地理解了您的问题，我创建了一个索引，并提取了两个文档。我试图使用escape字符= \\提出建议
这是我摄取的数据:
“field1”:“word1”
“field1”:“或word1”
然后，我对您的查询做了一些小的修改:

{
    "query": {
        "bool": {
        "filter": [
            {
                "query_string": {
                    "query": "word1 \\OR",
                    "fields": ["field1"]
                }
            }
            ]
        }
    }
}

响应是:

"hits" : [
  {
    "_index" : "or-doc",
    "_type" : "_doc",
    "_id" : "9mCioHQBowpsxTkF3Jdx",
    "_score" : 0.0,
    "_source" : {
      "field1" : "word1"
    }
  },
  {
    "_index" : "or-doc",
    "_type" : "_doc",
    "_id" : "82CjoHQBowpsxTkFCZgE",
    "_score" : 0.0,
    "_source" : {
      "field1" : "OR word1"
    }
  }
]

注意:我逃避了 OR，因为它被视为 reserved words。
如果您有任何问题，我们将很乐意为您提供帮助。
链接: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html