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Posted to dev@lucene.apache.org by "Alexandre Rafalovitch (JIRA)" <ji...@apache.org> on 2016/10/08 07:18:20 UTC
[jira] [Closed] (SOLR-2650) Empty docs array on response with
grouping and result pagination
[ https://issues.apache.org/jira/browse/SOLR-2650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexandre Rafalovitch closed SOLR-2650.
---------------------------------------
Resolution: Cannot Reproduce
> Empty docs array on response with grouping and result pagination
> ----------------------------------------------------------------
>
> Key: SOLR-2650
> URL: https://issues.apache.org/jira/browse/SOLR-2650
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 3.3
> Reporter: Massimo Schiavon
> Attachments: grouping_patch.txt
>
>
> Requesting a certain number of rows and setting start parameter to a greater value returns 0 results with grouping enabled.
> For example, requesting:
> http://localhost:8080/solr/web/select/?q=*:*&rows=1&start=2
> (grouping and highlighting are enabled by default)
> I get this response:
> [...]
> response: {
> numFound: 117852
> start: 2
> docs: [ ]
> }
> highlighting: {
> 0938630598: {
> title: [ "..." ]
> content: [ "..." ]
> }
> }
> [...]
> docs array is empty while the highlighted values of the document are present
> Debugging the request in
> org.apache.solr.search.Grouping.Command.createSimpleResponse() at row 534
> [...]
> int len = Math.min(numGroups, docsGathered);
> if (offset > len) {
> len = 0;
> }
> [...]
> The initial vars values are:
> numGroups = 1
> docsGathered = 3
> offset = 2
> so after the execution len = 0
> I've tried commenting the if statement and this resolves the issue but could introduce some other bugs.
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