表的一部分的Lucene Grails可搜索插件构建索引

Question

我有一个可搜索的域类，映射到具有标志列的表。 当前，Lucene创建索引时，它会生成如下查询（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

是否可以仅为包含特定标志值的那些行构建索引，以便生成的查询如下所示：

    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，我认为您可以做到。 以下是伪代码。

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