Elasticsearch 或查询逗号分隔值

Question

我在数据库中将 id 保存为逗号分隔并将其索引到 ElasticSearch。现在我需要检索 user_id 是否与值匹配。

例如，它在列 user_ids 的索引中像这样保存（数据库类型在 elasticsearch 中是 varchar(500)，它是文本）

8938,8936,8937

$userId = 8936; // For example expecting to return that row
$whereCondition = [];
$whereCondition[]  = [
                "query_string" => [
                    "query"=> $userId,
                    "default_field" => "user_ids",
                    "default_operator" => "OR"
                ]
            ];

$searchParams = [
    'query' => [
        'bool' => [
            'must' => [
                $whereCondition
            ],
            'must_not' => [
                ['exists' => ['field' => 'deleted_at']]
            ]
        ]
    ],
    "size" => 10000
];

User::search($searchParams);

Json查询

{
    "query": {
        "bool": {
            "must": [
                [{
                    "query_string": {
                        "query": 8936,
                        "default_field": "user_ids",
                        "default_operator": "OR"
                    }
                }]
            ],
            "must_not": [
                [{
                    "exists": {
                        "field": "deleted_at"
                    }
                }]
            ]
        }
    },
    "size": 10000
}

映射详细信息

{
    "user_details_index": {
        "aliases": {},
        "mappings": {
            "test_type": {
                "properties": {
                    "created_at": {
                        "type": "date",
                        "format": "yyyy-MM-dd HH:mm:ss"
                    },
                    "deleted_at": {
                        "type": "date",
                        "format": "yyyy-MM-dd HH:mm:ss"
                    },
                    "updated_at": {
                        "type": "date",
                        "format": "yyyy-MM-dd HH:mm:ss"
                    },
                    "user_ids": {
                        "type": "text",
                        "fields": {
                            "keyword": {
                                "type": "keyword",
                                "ignore_above": 256
                            }
                        }
                    }
                }
            }
        },
        "settings": {
            "index": {
                "creation_date": "1546404165500",
                "number_of_shards": "5",
                "number_of_replicas": "1",
                "uuid": "krpph26NTv2ykt6xE05klQ",
                "version": {
                    "created": "6020299"
                },
                "provided_name": "user_details_index"
            }
        }
    }
}

我正在尝试以上逻辑，但并非无法检索。有人可以帮忙吗。

Answer 1

由于字段 user_ids 的类型为 text any 默认情况下没有为其指定分析器，它将使用 standard 分析器，不会将 8938,8936,8937 分解为术语 8938、8936 和 8937，因此 ID 无法匹配。

为了解决这个问题，我建议您将 ID 数组存储到 user_ids 字段而不是 csv。因此，在为您编制索引时 json 输入应如下所示：

{
   ...

   "user_ids": [
      8938,
      8936,
      8937
   ]

   ...
}

由于用户 ID 是整数值，因此应在映射中进行以下更改：

{
   "user_ids": {
      "type": "integer"
   }
}

现在查询如下：

{
  "query": {
    "bool": {
      "filter": [
        [
          {
            "terms": {
              "userIds": [
                8936
              ]
            }
          }
        ]
      ],
      "must_not": [
        [
          {
            "exists": {
              "field": "deleted_at"
            }
          }
        ]
      ]
    }
  },
  "size": 10000
}

Elasticsearch 或查询逗号分隔值

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