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https://issues.apache.org/jira/browse/LUCENE-1599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718945#action_12718945
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Michael McCandless commented on LUCENE-1599:
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MultiSearcher seems to rewrite against all its searchers, and then uses
Query.combine to merge all the the results? Maybe the issue is in
Query.combine?
Seems like we should fix this for 2.9.
> SpanRegexQuery and SpanNearQuery is not working with MultiSearcher
> ------------------------------------------------------------------
>
> Key: LUCENE-1599
> URL: https://issues.apache.org/jira/browse/LUCENE-1599
> Project: Lucene - Java
> Issue Type: Bug
> Components: contrib/*
> Affects Versions: 2.4.1
> Environment: lucene-core 2.4.1, lucene-regex 2.4.1
> Reporter: Billow Gao
> Fix For: 2.9
>
> Attachments: TestSpanRegexBug.java
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> MultiSearcher is using:
> queries[i] = searchables[i].rewrite(original);
> to rewrite query and then use combine to combine them.
> But SpanRegexQuery's rewrite is different from others.
> After you call it on the same query, it always return the same rewritten
> queries.
> As a result, only search on the first IndexSearcher work. All others are
> using the first IndexSearcher's rewrite queries.
> So many terms are missing and return unexpected result.
> Billow
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