Solr 关联 [英] Solr associations

问题描述

最近几天，我们正在考虑使用 Solr 作为我们选择的搜索引擎.我们需要的大多数功能都是开箱即用的，或者可以轻松配置.然而，我们绝对需要的一项功能似乎在 Solr 中被很好地隐藏(或缺失)了.

The last couple of days we are thinking of using Solr as our search engine of choice. Most of the features we need are out of the box or can be easily configured. There is however one feature that we absolutely need that seems to be well hidden (or missing) in Solr.

我会尝试用一个例子来解释.我们有很多实际上是企业的文件:

I'll try to explain with an example. We have lots of documents that are actually businesses:

<document>
  <name>Apache</name>
  <cat>1</cat>
  ...
</document>
<document>
  <name>McDonalds</name>
  <cat>2</cat>
  ...
</document>

此外，我们还有另一个包含所有类别和同义词的 xml 文件:

In addition we have another xml file with all the categories and synonyms:

<cat id=1>
  <name>software</name>
  <synonym>IT<synonym>
</cat>
<cat id=2>
  <name>fast food</name>
  <synonym>restaurant<synonym>
</cat>

我们希望将企业和类别关联起来，以便我们可以使用类别的名称和/或同义词进行搜索.但我们不想在索引时合并这些文件，因为我们应该更新类别(adding.remioving 同义词...)而不重新索引所有业务.

We want to associate both businesses and categories so we can search using the name and/or synonyms of the category. But we do not want to merge these files at indexing time because we should update the categories (adding.remioving synonyms...) without indexing all the businesses again.

Solr 中有什么东西可以做这种关联，还是我们需要开发一些特定的部分?

Is there anything in Solr that does this kind of associations or do we need to develop some specific pieces?

欢迎所有反馈和建议.

提前致谢，汤姆

推荐答案

基本上你在这里有一个设计决策.人们对 Solr 索引所做的通常的事情是对它们进行非规范化，即将类别定义分解到业务文档中.由于您不想这样做，我建议保留两种类型的文档 - 一种用于企业，另一种用于类别.您可以将两者保存在同一个索引中，因为 Solr 不要求所有文档都具有相同的字段.业务文档看起来很简单，但您必须使它们可以通过业务名称和类别 ID 进行搜索.我建议为每个同义词创建一个类别文档，您可以在其中按同义词搜索并找到 id(和类别名称).

Basically you have a design decision here. The usual thing people do with Solr indexes is to denormalize them, i.e. explode the category definition into the business' document. As you do not want to do this, I suggest keeping two types of documents - one for the businesses and another for the categories.You can keep both in the same index, as Solr does not require all documents to have the same fields. The business documents seem straightforward, but you have to make them searchable by both the business name and the category id. I suggest creating a category document for each synonym, where you search by synonym and find the id (and category name).

要使用同义词进行搜索，您需要进行双重搜索 -

To search using synonyms, you will need a double search -

• 使用名称文本搜索类别 ID.
• 使用类别 ID 搜索企业.

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