strong>Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/solr/handler/dataimport/DIHWriter.html#setDeltaKeys(java.util.Set)">DIHWriter</a></code></strong></div>
<div class="block"><p>
  Specify the keys to be modified by a delta update (required by writers that can store duplicate keys)
 </p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/solr/handler/dataimport/DIHWriter.html#setDeltaKeys(java.util.Set)">setDeltaKeys</a></code>