带有通配符和匹配条件的 Elasticsearch 查询

Question

我有这个索引：

    {
            "mappings": {
                "records" : {
                    "properties" : {
                        "suggest" : {
                            "type" : "completion",
                            "contexts": [
                                { 
                                    "name": "year",
                                    "type": "category",
                                    "path": "year"
                                }
                            ]
                        }
                    }
                }
            }
}

我放了一些记录：

POST http://localhost:9200/example/records
{
            "suggest": {
                "input": "foo123" ,
                "contexts": {
                    "year": "1999"
                }
            }
}

POST http://localhost:9200/example/records
{
            "suggest": {
                "input": "some123" ,
                "contexts": {
                    "year": "1999"
                }
            }
}
POST http://localhost:9200/example/records
{
            "suggest": {
                "input": "thing123" ,
                "contexts": {
                    "year": "2000"
                }
            }
}

现在我会做这个查询（类似sql）：

SELECT * FROM example WHERE SUGGEST LIKE %123% AND YEAR=1999

如何在 Elastic Search 中进行操作？

我输入：

    POST http://localhost:9200/example/records/_search?pretty
    {
    "query": {
        "bool": {
            "must": [
                   { "wildcard" : { "suggest" : "*123*" } }

            ], 
            "filter":[
                { "term" : { "year" : "1999" } }
                ]
        }
    }
}

我已返回此响应，但结果为空白：

    {
    "took": 1,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 0,
        "max_score": null,
        "hits": []
    }
}

我希望返回这些记录：

• foo123，1999 年
• some123，1999 年

我该怎么办？

Answer 1

如果你关心分数，你需要使用 bool query 和 must：

{
    "query": {
        "bool": {
            "must": [
                { "wildcard" : { "name" : "*foo*" } },
                { "term" : { "year" : "1999" } }
            ]
        }
    }
}

如果您只想过滤值并可能缓存过滤器，则使用过滤器：

{
    "query": {
        "filter": {
            "must": [
                { "wildcard" : { "name" : "*foo*" } },
                { "term" : { "year" : "1999" } }
            ]
        }
    }
}