我是否误解了Solr中的AND查询？

I have two fields in a solr document, "title" and "subject" (both are available by default)

Then I place two rows in the database, and search on them.

But the AND query title:"facebook" and subject:"java" returns both the rows.

It should only return the second row, right?

<?php
   $solr = new SolrClient (array ('hostname' => '127.0.0.1'));

   /////// INSERT ////////
   if (0)
   {
      $data = array (
         array (
            'id'       => 100,
            'title'    => 'Google',
            'subject'  => 'Java Interface'
         ),
         array (
            'id'       => 101,
            'title'    => 'FaceBook',
            'subject'  => 'Not Java'
         )
      );

      foreach ($data as $input)
      {
         $doc = new SolrInputDocument();
         foreach ($input as $key => $value)
         {
            $doc->addField ($key, $value);
         }

         $solr->addDocument ($doc, false, 1000);
      }

      sleep (3);
   }

   /////// QUERY ////////
   $query = new SolrQuery();

   $query->setQuery('title:"facebook" and subject:"java"');
   $query->addField('id')->addField('title')->addField('subject');

   $resp  = $solr->query($query)->getResponse ();
   print_r ($resp->response->docs);
?>

Never mind, the AND keyword must be in uppercase.