Lucene Grails可搜索的插件构建索引的部分表

Question

我有一个可搜索的域类映射到具有标志列的表。目前，当Lucene的创建它产生这样的查询索引（返回表中的所有数据）：

 select this_.id as id0_0_, 
       this_.flag as flag2_0_0_, 
       this_.email as email0_0_, this_.first_name as first6_0_0_, this_.last_name as last8_0_0_ 
     from ais_person this_ 
     order by this_.id asc 

是否有可能建立一个索引只有那些含有特定的标志值的行，从而使生成的查询将如下所示：

select this_.id as id0_0_, 
      this_.flag as flag2_0_0_, 
      this_.email as email0_0_, this_.first_name as first6_0_0_, this_.last_name as last8_0_0_ 
    from ais_person this_ 
    where this_.flag = 'Y' 
    order by this_.id asc 

Answer 1

是的，我认为你可以做到这一点。以下是伪代码。

Document doc = new Document(); 
doc.add(Field.Text("flag", Y));