我有一份文件

<entity name="Category" dataSource="ds1" pk="CategoryId"
    query="SELECT CategoryId, Description, ImageUrl FROM Category">
    <field column="CategoryId" name="CategoryId" />
    <entity name="PackCategory" pk="PackId, CategoryId"
     query="SELECT PackId FROM PackCategory WHERE CategoryId = ${Category.CategoryId}" >
     <entity name="Pack" pk="PackId"
      query="SELECT PackId, IsActive FROM Pack WHERE PackId = ${PackCategory.PackId}" >
      <field column="IsActive" name="IsActive" />
      <entity name="PartnerPackTrans" pk="PackId, PartnerId" transformer="TemplateTransformer">
       query="SELECT PartnerId FROM PartnerPackTrans WHERE PackId = ${Pack.PackId}" >
           <field column="PartnerId" name="PartnerId" />
      </entity>
</entity>
     </entity>
    </entity>
   </entity>

我的唯一ID是（类别.类别ID， Package . Package ID，合作伙伴 Package 交易.合作伙伴ID）的组合。我如何定义这是schema.xml中唯一字段中的solr
更新后，通过各种职位，我添加了这个我的solr-config文件

<updateRequestProcessorChain name="id">
  <processor class="solr.CloneFieldUpdateProcessorFactory">
    <str name="source">CategoryId</str>
    <str name="source">PartnerId</str>
    <str name="dest">id</str>
  </processor>
  <processor class="solr.ConcatFieldUpdateProcessorFactory">
    <str name="fieldName">id</str>
    <str name="delimiter">-</str>
  </processor>
  <processor class="solr.LogUpdateProcessorFactory" />
  <processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>

但是我在solr文档中得到这个错误，它缺少必需的uniqueKey字段：标识符
我在引用这篇文章Solr Composite Unique key from existing fields in schema
我使用的是solr版本5.3