tedRows)</pre>
<div class="block"><p> Collects unique keys of all Solr documents for whom one or more source tables have been changed since the last
 indexed time. </p> <p> Note: In our definition, unique key of Solr document is the primary key of the top level
 entity (unless skipped using docRoot=false) in the Solr document in data-config.xml </p></div>
<dl><dt><span class="strong">Returns:</span></dt><dd>an iterator to the list of keys for which Solr documents should be updated.</dd></dl>
</li>
</ul>
<a 