我有一个弹性搜索索引与一个字段的精确匹配,并以某种方式我得到了很多类似的结果(我不介意)和那些类似的结果完全匹配,(我不介意)Elasticsearch不首先返回完全匹配
有人可以解释发生了什么以及如何解决它吗?
我的映射是这样的
"exact":{
"type":"string",
"boost":10.0,
"analyzer":"keyword"
},
我的查询,以搜索为“AAPL P 2014年1月885,00”是这样的:
{
"size" : 21,
"query" : {
"field" : {
"exact" : "AAPL P JAN 2014 885,00"
}
},
"explain" : true,
"sort" : [ {
"_score" : {
"order" : "desc"
}
} ],
"facets" : {
"category" : {
"terms" : {
"field" : "category",
"size" : 10
}
}
}
}
而返回的文档顺序结束:
- { “精确”:[ “APPLE INC”, “US0378331005”, “AAPL”, “73773”], “ID-化合物”: “AAPL”}
- {“exact”:[“AAPL”,“73773”,“AAPL P JAN 2014 675,00”],“id-compound”:“AAPL * PUT * 20140118 * 675”}
- {“exact” :[ “AAPL”, “73773”, “AAPLç2014年1月500,00”], “ID-化合物”: “AAPL * CALL * 20140118 * 500”}
等,与完全匹配一个一线结果。
有人可以向我解释为什么精确匹配不会结束?
如果搜索结果有助于理解事情,那么以下全面说明的搜索结果如下。
"hits" : [ {
"_shard" : 0,
"_node" : "1",
"_index" : "instruments",
"_type" : "instrument",
"_id" : "AAPL",
"_score" : 1306.8339, "_source" : {"exact":["APPLE INC","US0378331005","AAPL","73773"],"id-compound":"AAPL"},
"_explanation" : {
"value" : 1306.8339,
"description" : "product of:",
"details" : [ {
"value" : 6534.169,
"description" : "sum of:",
"details" : [ {
"value" : 6534.169,
"description" : "weight(exact:AAPL in 9096), product of:",
"details" : [ {
"value" : 0.25854474,
"description" : "queryWeight(exact:AAPL), product of:",
"details" : [ {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 0.0419026,
"description" : "queryNorm"
} ]
}, {
"value" : 25272.875,
"description" : "fieldWeight(exact:AAPL in 9096), product of:",
"details" : [ {
"value" : 1.0,
"description" : "tf(termFreq(exact:AAPL)=1)"
}, {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 4096.0,
"description" : "fieldNorm(field=exact, doc=9096)"
} ]
} ]
} ]
}, {
"value" : 0.2,
"description" : "coord(1/5)"
} ]
}
}, {
"_shard" : 0,
"_node" : "1",
"_index" : "instruments",
"_type" : "instrument",
"_id" : "AAPL*PUT*20140118*675",
"_score" : 163.35423, "_source" : {"exact":["AAPL","73773","AAPL P JAN 2014 675,00"],"id-compound":"AAPL*PUT*20140118*675"},
"_explanation" : {
"value" : 163.35423,
"description" : "product of:",
"details" : [ {
"value" : 816.7711,
"description" : "sum of:",
"details" : [ {
"value" : 816.7711,
"description" : "weight(exact:AAPL in 18), product of:",
"details" : [ {
"value" : 0.25854474,
"description" : "queryWeight(exact:AAPL), product of:",
"details" : [ {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 0.0419026,
"description" : "queryNorm"
} ]
}, {
"value" : 3159.1094,
"description" : "fieldWeight(exact:AAPL in 18), product of:",
"details" : [ {
"value" : 1.0,
"description" : "tf(termFreq(exact:AAPL)=1)"
}, {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 512.0,
"description" : "fieldNorm(field=exact, doc=18)"
} ]
} ]
} ]
}, {
"value" : 0.2,
"description" : "coord(1/5)"
} ]
}
}, {
"_shard" : 0,
"_node" : "1",
"_index" : "instruments",
"_type" : "instrument",
"_id" : "AAPL*CALL*20140118*500",
"_score" : 163.35423, "_source" : {"exact":["AAPL","73773","AAPL C JAN 2014 500,00"],"id-compound":"AAPL*CALL*20140118*500"},
"_explanation" : {
"value" : 163.35423,
"description" : "product of:",
"details" : [ {
"value" : 816.7711,
"description" : "sum of:",
"details" : [ {
"value" : 816.7711,
"description" : "weight(exact:AAPL in 383), product of:",
"details" : [ {
"value" : 0.25854474,
"description" : "queryWeight(exact:AAPL), product of:",
"details" : [ {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 0.0419026,
"description" : "queryNorm"
} ]
}, {
"value" : 3159.1094,
"description" : "fieldWeight(exact:AAPL in 383), product of:",
"details" : [ {
"value" : 1.0,
"description" : "tf(termFreq(exact:AAPL)=1)"
}, {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 512.0,
"description" : "fieldNorm(field=exact, doc=383)"
} ]
} ]
} ]
}, {
"value" : 0.2,
"description" : "coord(1/5)"
} ]
}
}, {
"_id" : "AAPL*PUT*20140118*940",
"_score" : 163.35423, "_source" : {"exact":["AAPL","73773","AAPL P JAN 2014 940,00"],"id-compound":"AAPL*PUT*20140118*940"},
"_explanation" : {
"value" : 163.35423,
"description" : "product of:",
"details" : [ {
"value" : 816.7711,
"description" : "sum of:",
"details" : [ {
"value" : 816.7711,
"description" : "weight(exact:AAPL in 794), product of:",
"details" : [ {
"value" : 0.25854474,
"description" : "queryWeight(exact:AAPL), product of:",
"details" : [ {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 0.0419026,
"description" : "queryNorm"
} ]
}, {
"value" : 3159.1094,
"description" : "fieldWeight(exact:AAPL in 794), product of:",
"details" : [ {
"value" : 1.0,
"description" : "tf(termFreq(exact:AAPL)=1)"
}, {
"value" : 6.1701355,
"description" : "idf(docFreq=211, maxDocs=37299)"
}, {
"value" : 512.0,
"description" : "fieldNorm(field=exact, doc=794)"
} ]
} ]
} ]
}, {
"value" : 0.2,
"description" : "coord(1/5)"
} ]
}
}
,只是在情况下的,如果我分析我试图存储中的数据会发生什么:
curl -XGET 'localhost:9200/instruments/_analyze?field=exact&pretty=true' -d 'ING P JUN 2013 6.00'
{
"tokens" : [ {
"token" : "ING P JUN 2013 6.00",
"start_offset" : 0,
"end_offset" : 20,
"type" : "word",
"position" : 1
} ]
有一个在有精确匹配,它只是WAAAAAAAY下来。 –
这是一个完全匹配你,而不是elasticsearch/lucene如果你看看分数。 – javanna
什么我不明白它:为什么它甚至匹配...我使用关键字分析器,它应该分析整个字符串作为关键字...所以我正在阐述的是,当它搜索它转向整个事情变成一个令牌,它试图匹配。但显然这不是发生了什么事情。任何想法如何我可以得到我想要的行为?我只想要一场比赛,如果一切都匹配,直到空间。 (最好不区分大小写) –