Mahesh commented on LUCENE-7493:

Hey Michael McCandless thanks for pointing out. 

With new code there is weird behavior. Code fix and test executes as expected 
like before fix assertion fails and after fix test passes but the problem that 
I had is that sometimes test will not pass in all cases with error ' 
java.lang.IllegalArgumentException: dimension "b" was not indexed into field 
"$facets'. This is happening randomly with no fixed step to reproduce and I am 
not sure why :(.

> Support of TotalHitCountCollector for FacetCollector.search api if numdocs 
> passed as zero.
> ------------------------------------------------------------------------------------------
>                 Key: LUCENE-7493
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7493
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Mahesh
>         Attachments: LUCENE-7493-Fail-TestCase.patch, 
> LUCENE-7493-Fail-V.20.patch, LUCENE-7493-Pass-TestCase.patch, 
> LUCENE-7493-Pass-V.20.patch
> Hi, 
> I want to do drill down search using FacetCollection below is the code 
> FacetsCollector facetCollector = new FacetsCollector();
> TopDocs topDocs = FacetsCollector.search(st.searcher, filterQuery, limit, 
> facetCollector);
> I just want facet information so I pass limit as zero but I get error 
> "numHits must be > 0; please use TotalHitCountCollector if you just need the 
> total hit count".
> For FacetCollector there is no way to initialize 'TotalHitCountCollector'. 
> Internally it always create either 'TopFieldCollector' or 
> 'TopScoreDocCollector' which does not allow limit as 0. 
> So if limit should be zero then there should be a way that 
> 'TotalHitCountCollector' should be initialized. 
> Better way would be to provide an api which takes query and collector as 
> inputs just like 'drillSideways.search(filterQuery, totalHitCountCollector)'.

This message was sent by Atlassian JIRA

To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org

Reply via email to