如何使用apache solr lucene中的json文档在schema.xml中编制索引

Question

下面是我导入到solr的JSON示例，logDetails字段包含整个json.how，用于在schema.xml中编写索引，因为括号内的括号我不知道

{ "id" : "978-0641723445", 
  "author":"Rick Riordan",
  "logDetails":{            
      "tphon_num_txt":"No Number",   
      "brch_cd":"C4" 
  } 
}, 
{ "id" : "978-1423103349",
  "author" : "Rick Riordan",
  "logDetails":{  
      "tphon_num_txt":"No Number", 
      "brch_cd":"C4" 
  }  
}