[GitHub] [lucene-solr] mkhludnev commented on a change in pull request #1034: SOLR-13863: payload query function now handles string encoded payload field (delimited_payloads_string)

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mkhludnev commented on a change in pull request #1034: SOLR-13863: payload query function now handles string encoded payload field (delimited_payloads_string)
URL: https://github.com/apache/lucene-solr/pull/1034#discussion_r360661332
 
 

 ##########
 File path: lucene/core/src/java/org/apache/lucene/index/PostingsEnum.java
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 @@ -67,6 +67,56 @@ public static boolean featureRequested(int flags, short feature) {
   protected PostingsEnum() {
   }
 
+  /**
+   * Dummy PostingsEnum object.
+   */
+  public static PostingsEnum DUMMY_INSTANCE = new PostingsEnum() {
 
 Review comment:
   Please look at org.apache.lucene.search.DocIdSetIterator.empty() 
   There's subtle exhausting logic which needs to be supported and you can follow naming as well.  

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