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https://issues.apache.org/jira/browse/LUCENE-1599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718962#action_12718962
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Michael McCandless commented on LUCENE-1599:
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bq. I rewrote the MultiSearcher for my system. Actually, we rewrote most lucene
analyzer/parser/search functions...
Sounds interesting! Anything that could be contributed back?
bq. Also, I don't like MultiSearcher's combine function.
I don't either! It seems like Lucene should rewrite then search, against each
searcher, rather than rewriting all up front and combining.
> 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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