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https://issues.apache.org/jira/browse/SOLR-1726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13160627#comment-13160627
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Grant Ingersoll commented on SOLR-1726:
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totalHits should return the count of all the hits regardless of the number that
are actually being collected. In other words, totalHits could be a million,
but we only return the top 10. collectedHits only returns the count of how
many are being returned.
> Deep Paging and Large Results Improvements
> ------------------------------------------
>
> Key: SOLR-1726
> URL: https://issues.apache.org/jira/browse/SOLR-1726
> Project: Solr
> Issue Type: Improvement
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 3.6, 4.0
>
> Attachments: CommonParams.java, QParser.java, QueryComponent.java,
> ResponseBuilder.java, SOLR-1726.patch, SolrIndexSearcher.java,
> TopDocsCollector.java, TopScoreDocCollector.java
>
>
> There are possibly ways to improve collections of "deep paging" by passing
> Solr/Lucene more information about the last page of results seen, thereby
> saving priority queue operations. See LUCENE-2215.
> There may also be better options for retrieving large numbers of rows at a
> time that are worth exploring. LUCENE-2127.
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