如果匹配特定字段，是否可以将 solr 文档 int 字段值应用为 boost 值? [英] Is it possible to apply a solr document int field value as boost value if a specific field is matched?

问题描述

Ex. 

"docs": [
{
"id": "f37914",
"index_id": "some_index",
"field_1": [
   {
      "Some value",
      "boost": 20.
   }
 ]
},
]

如果field_1"匹配，则通过相应的boost"字段提升.

If 'field_1' is matched, then boost by corresponding 'boost' field.

推荐答案

Boost 什么?文件?具体领域?你可以做任何一个.无论如何，这样做的方法是使用函数查询:https://lucene.apache.org/solr/guide/6_6/function-queries.html#FunctionQueries-AvailableFunctions

Boost what? the document? the specific field? you can do any of them. Anyway the way to do it is to user Function Queries: https://lucene.apache.org/solr/guide/6_6/function-queries.html#FunctionQueries-AvailableFunctions

例如，如果您想提升文档(并假设值不匹配则分数为 0)，那么您可以执行以下操作:

For example if you want to boost the document (and assuming if the value doesn't match then the score is 0) then you can do something like that:

q:_val_:"if(query($q1), field(boost), 0)"&q1=field_1:"Some Value"

_val_ 只是 Solr 函数查询的一个钩子，如果 q1 匹配，query 返回 true，field 是一个简单的函数，它只返回字段本身的值，并且 if 允许我们将两者连接在一起.

_val_ is just a hook into Solr function query, query returns true if q1 matches, field is a simple function that just return the value of the field it self and if allows us to join the two together.

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