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https://issues.apache.org/jira/browse/LUCENE-9142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17031889#comment-17031889
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ASF subversion and git services commented on LUCENE-9142:
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Commit abd282d258d23d19b7f7c1e96332a19fa7b7b827 in lucene-solr's branch
refs/heads/master from Mike
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=abd282d ]
LUCENE-9142 Refactor IntSet operations for determinize (#1184)
* LUCENE-9142 Refactor SortedIntSet for equality
Split SortedIntSet into a class heirarchy to make comparisons to
FrozenIntSet more meaningful. Use Arrays.equals for more efficient
comparison. Add tests for IntSet to verify correctness.
> Add documentation to Operations.determinize, SortedIntSet, and FrozenSet
> ------------------------------------------------------------------------
>
> Key: LUCENE-9142
> URL: https://issues.apache.org/jira/browse/LUCENE-9142
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Reporter: Mike Drob
> Priority: Major
> Time Spent: 4h 10m
> Remaining Estimate: 0h
>
> Was tracing through the fuzzy query code, and IntelliJ helpfully pointed out
> that we have mismatched types when trying to reuse states, and so we may be
> creating more states than we need to.
> Relevant snippets:
> {code:title=Operations.java}
> Map<SortedIntSet.FrozenIntSet,Integer> newstate = new HashMap<>();
> final SortedIntSet statesSet = new SortedIntSet(5);
> Integer q = newstate.get(statesSet);
> {code}
> {{q}} is always going to be null in this path because there are no
> SortedIntSet keys in the map.
> There are also very little javadoc on SortedIntSet, so I'm having trouble
> following the precise relationship between all the pieces here.
> cc: [~mikemccand] [~romseygeek] - I would appreciate any pointers if you have
> them
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