diegoceccarelli commented on a change in pull request #300: SOLR-11831: Skip 
second grouping step if group.limit is 1 (aka Las Vegas Patch)
URL: https://github.com/apache/lucene-solr/pull/300#discussion_r328282331
 
 

 ##########
 File path: solr/core/src/test/org/apache/solr/TestDistributedGrouping.java
 ##########
 @@ -425,6 +426,65 @@ public void test() throws Exception {
     
     //Debug
     simpleQuery("q", "*:*", "rows", 10, "fl", "id," + i1, "group", "true", 
"group.field", i1, "debug", "true");
+    doTestGroupSkipSecondStep();
+  }
+
+  /*
+    SOLR-11831, test skipping the second grouping step if the query only 
retrieves on document per group
+   */
+  private void doTestGroupSkipSecondStep() throws Exception {
+    ignoreException(GroupParams.GROUP_SKIP_DISTRIBUTED_SECOND); // don't print 
stack trace for exception raised by group.skip.second.step
+    // Ignore numFound if group.skip.second.step is enabled because the number 
of documents per group will not be computed (will default to 1)
 
 Review comment:
   added a check abf38b0ef4a3e08eae0833d3bd6469a9a1187b1c

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