cpoerschke 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_r321742912
##########
File path: solr/core/src/test/org/apache/solr/TestDistributedGrouping.java
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@@ -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:
> ... // Ignore numFound if group.skip.second.step is enabled because the
number of documents per group will not be computed (will default to 1) ...
Curiosity only at this point, might it be possible to (somehow) test for the
`numFound` being returned to be `1`
And as you already mentioned elsewhere in this pull request, the `numFound`
always being `1` for `group.skip.second.step=true` needs to be clearly
documented.
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