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https://issues.apache.org/jira/browse/SOLR-8114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christine Poerschke updated SOLR-8114:
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Attachment: SOLR-8114-part2of2.patch
SOLR-8114-part1of2.patch
proposed patches (against trunk)
> Grouping.java: sort variable names confusion
> --------------------------------------------
>
> Key: SOLR-8114
> URL: https://issues.apache.org/jira/browse/SOLR-8114
> Project: Solr
> Issue Type: Wish
> Reporter: Christine Poerschke
> Assignee: Christine Poerschke
> Priority: Minor
> Attachments: SOLR-8114-part1of2.patch, SOLR-8114-part2of2.patch
>
>
> The undistributed case i.e. {{solr/Grouping.java}}'s variable names
> confusingly differ from the names used by lucene (and by the distributed
> case).
> Specifically the name {{groupSort}} in lucene (and in the distributed case)
> means between-groups-sort but in the Grouping.java it means within-group-sort.
> lucene:
> {code}
> TermFirstPassGroupingCollector(... Sort groupSort ...)
> TermSecondPassGroupingCollector(... Sort groupSort, Sort withinGroupSort ...)
> {code}
> solr:
> {code}
> SearchGroupsFieldCommand.java: firstPassGroupingCollector = new
> TermFirstPassGroupingCollector(field.getName(), groupSort, topNGroups);
> TopGroupsFieldCommand.java: secondPassCollector = new
> TermSecondPassGroupingCollector(... groupSort, sortWithinGroup ...);
> Grouping.java: public Sort groupSort; // the sort of the documents
> *within* a single group.
> Grouping.java: public Sort sort; // the sort between groups
> Grouping.java: firstPass = new TermFirstPassGroupingCollector(groupBy, sort,
> actualGroupsToFind);
> Grouping.java: secondPass = new TermSecondPassGroupingCollector(... sort,
> groupSort ...);
> {code}
> This JIRA proposes to rename the Grouping.java variables to remove the
> confusion:
> * part 1: in Grouping.java rename groupSort to withinGroupSort
> * part 2: in Grouping.java rename sort to groupSort
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