Lucene Grails Searchable plugin build index for part of the table

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 创建索引时，它会生成这样的查询（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

是否可以只为那些包含特定标志值的行建立索引，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，我认为你可以做到。以下是伪代码。

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