如何返回与Solr中的查询匹配的列？ [英] How to return column that matched the query in Solr..?

问题描述

我使用apache Solr搜索我的数据库..

假设我已经从我的表中索引4列.. ..希望只有那些包含我的查询字词 的列会在回复中返回.. .. ..是可能的..

例如：

我有一个汽车列： name，displayName，description ，extra ..

现在我进行查询，例如：

  localhost：8983 / solr / select？q = maruti& wt = json 
  

b $ b

现在，在某些行中只有 名称 可能包含 b $ b

因此，作为回报，我只想要名称（以及 ID ）等其他固定字段。

同样，如果 description 包含此字词，则只应返回 description 。 !!

我如何能够实现这个...

解决方案

您可以使用Solr 4和一个自定义变换器来实现这一点 - 我对文档的阅读似乎表明了这一点。但是，这将是一个相当多的工作，我想。最终你可能需要写一个前端过滤器，但是对于复杂的查询很难。

更新：
如何在没有自定义变压器的Solr中执行此操作。为所有四个列启用突出显示：

  hl = on& hl.fl = name，displayName，description，extra 
  

Solr将返回一个包含键和匹配查询的字段。你也会得到突出显示的片段，无论你使用它们是由你。请参阅此处查看其他参数： http://wiki.apache.org/solr/HighlightingParameters p>

I am using apache Solr for searching my database..!!

Suppose i have indexed 4 columns from one of my table..!!..I just want that only those columns that contains my query term are returned in response..!!..is that possible..??

For example :

I have a table cars with columns : name, displayName, description, extra ..!!

Now i make a query , something like :

localhost:8983/solr/select?q=maruti&wt=json

Now some in some rows only name may contain the word "maruti"

So, In return, i want only name (along with some other fixed fields like ID) ..

Similarly, If description contains this word, then only description should be returned..and not other columns..!!

How can i acheive this..??

解决方案

You may be able to do this with Solr 4 and a custom transformer - my reading of the documentation would seem to indicate as much. But it would be quite a bit of work, I think. Ultimately you may have to write a front-end filter, but that would be difficult with complex queries.

Update: Here's how to do this in Solr without custom transformers, etc. Enable highlighting for all four columns:

hl=on&hl.fl=name,displayName,description,extra

Solr will return a "highlighting" structure containing the key and the field(s) that match the query. You will also get highlighted snippets, whether you use them is up to you. See here for additional params: http://wiki.apache.org/solr/HighlightingParameters

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