RavenDB全文搜索 [英] RavenDB full-text search

问题描述

您能否告诉我们如何在 RavenDb 中执行简单的全文搜索。该数据库存储文件：电影{名称=加勒比海盗} 。我希望这个文件可以在搜索短语Pirates Carribean或任何其他词汇组合中找到。

担心与全文无关 - 默认情况下，Lucene以OR为基础，你想要的是一个AND

如果我是你，我会做

  String [] terms = searchTerm.Split（）; //或者任何string.split方法是
  

和

$ b （Name :(+ String.Join（AND，terms）+））; $ b

  .Where 
  

您的索引应该类似于

<$ p $ b $ public class Movie_ByName：AbstractIndexCreationTask
{
public override IndexDefinition CreateIndexDefinition（）
{
return new IndexDefinitionBuilder< Movie>
{
Map = movies => from movie in movies
select new {movie.Name，market.Id}，

Indexes =
{
{x => x.Name，FieldIndexing.Analyzed}
}
}
.ToIndexDefinition（DocumentStore.Conventions）;
}


你不需要存储，你不需要从lucene直接在任何时间。你可能甚至不需要索引（你可能真的想要FieldIndexing.Analyzed，并可能在这里只使用动态查询）

尽管如此。

Can you please tell how to perform simple full-text search in RavenDb. The database is stored document: Movie {Name = "Pirates of the Carribean"}. I wish that this document was found on the search phrase "Pirates Carribean" or any other combination of words.

解决方案

What you are worrying about isn't anything to do with full text - by default Lucene works on an OR basis and what you want is an AND

If I were you I'd do

 String[] terms = searchTerm.Split(" "); // Or whatever the string.split method is

and

  .Where("Name:(" + String.Join(" AND ", terms) + ")");

Your index should look something like

 public class Movie_ByName : AbstractIndexCreationTask
 {
    public override IndexDefinition CreateIndexDefinition()
    {
        return new IndexDefinitionBuilder<Movie>
                   {
                       Map = movies => from movie in movies
                                        select new { movie.Name, market.Id },

                       Indexes =
                           {
                               {x => x.Name, FieldIndexing.Analyzed}
                           }
                   }
            .ToIndexDefinition(DocumentStore.Conventions);
    }

You don't need storage, you're not requesting the data from lucene directly at any time. You might not even want an index (You might actually want FieldIndexing.Analyzed, and might get away with just using dynamic queries here)

Up to you though.

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