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https://issues.apache.org/jira/browse/LUCENE-6352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn van Groningen updated LUCENE-6352:
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Attachment: LUCENE-6352.patch
Attached a new version of the global ordinal based query time join:
* Added support for the max, total and avg score mode.
* Added more tests.
> Add global ordinal based query time join
> -----------------------------------------
>
> Key: LUCENE-6352
> URL: https://issues.apache.org/jira/browse/LUCENE-6352
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Martijn van Groningen
> Attachments: LUCENE-6352.patch, LUCENE-6352.patch
>
>
> Global ordinal based query time join as an alternative to the current query
> time join. The implementation is faster for subsequent joins between reopens,
> but requires an OrdinalMap to be built.
> This join has certain restrictions and requirements:
> * A document can only refer to on other document. (but can be referred by one
> or more documents)
> * A type field must exist on all documents and each document must be
> categorized to a type. This is to distingues between the "from" and "to" side.
> * There must be a single sorted doc values field use by both the "from" and
> "to" documents. By encoding join into a single doc values field it is trival
> to build an ordinals map from it.
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