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https://issues.apache.org/jira/browse/LUCENE-7148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15227856#comment-15227856
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Mikhail Khludnev commented on LUCENE-7148:
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bq. It's much preferable to leverage the index.
what if {{frange}} will be dragged by disjunction across all query terms?
> Support boolean subset matching
> -------------------------------
>
> Key: LUCENE-7148
> URL: https://issues.apache.org/jira/browse/LUCENE-7148
> Project: Lucene - Core
> Issue Type: New Feature
> Components: core/search
> Affects Versions: 5.x
> Reporter: Otmar Caduff
> Labels: newbie
>
> In Lucene, I know of the possibility of Occur.SHOULD, Occur.MUST and the
> “minimum should match” setting on the boolean query.
> Now, when querying, I want to
> - (1) match the documents which either contain all the terms of the query
> (Occur.MUST for all terms would do that) or,
> - (2) if all terms for a given field of a document are a subset of the query
> terms, that document should match as well.
> Example:
> Document d hast field f with terms A, B, C
> Query with the following terms should match that document:
> A
> B
> A B
> A B C
> A B C D
> Query with the following terms should not match:
> D
> A B D
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