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https://issues.apache.org/jira/browse/LUCENE-9204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17350988#comment-17350988
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ASF subversion and git services commented on LUCENE-9204:
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Commit 5e0e7a5479bca798ccfe385629a0ca2ba5870bc0 in lucene's branch
refs/heads/main from Alan Woodward
[ https://gitbox.apache.org/repos/asf?p=lucene.git;h=5e0e7a5 ]
LUCENE-9204: Make ConjunctionDISI package-private and add ConjunctionUtils
factory class (#148)
ConjunctionDISI is really an internal implementation of DocIdSetIterator,
and would ideally be package-private. However, it is used in a few
other places:
* directly in ConjunctionSpans
* as a utility in the facet and join modules
This commit adds a public helper class ConjunctionUtils that allows easy
intersection of iterators for use by other modules. This means that
ConjunctionDISI itself can become package-private. It also removes
a reference to Spans from core classes, which will make it easier to
migrate Spans to the queries module. ConjuctionSpans and
ConjunctionIntervalIterator now use the public Utils class, and intervals
no longer need their own ConjunctionDISI implementation.
> Move span queries to the queries module
> ---------------------------------------
>
> Key: LUCENE-9204
> URL: https://issues.apache.org/jira/browse/LUCENE-9204
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
>
> We have a slightly odd situation currently, with two parallel query
> structures for building complex positional queries: the long-standing span
> queries, in core; and interval queries, in the queries module. Given that
> interval queries solve at least some of the problems we've had with Spans, I
> think we should be pushing users more towards these implementations. It's
> counter-intuitive to do that when Spans are in core though. I've opened this
> issue to discuss moving the spans package as a whole to the queries module.
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