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From "Bjarke Mortensen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-8495) ComplexPhraseQuery.rewrite throws "Unknown query type:org.apache.lucene.search.SynonymQuery" when nested BooleanQuery contains a SynonymQuery
Date Tue, 11 Sep 2018 19:49:00 GMT
Bjarke Mortensen created LUCENE-8495:
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             Summary: ComplexPhraseQuery.rewrite throws "Unknown query type:org.apache.lucene.search.SynonymQuery"
when nested BooleanQuery contains a SynonymQuery 
                 Key: LUCENE-8495
                 URL: https://issues.apache.org/jira/browse/LUCENE-8495
             Project: Lucene - Core
          Issue Type: Bug
          Components: core/queryparser
    Affects Versions: 7.4
            Reporter: Bjarke Mortensen
         Attachments: 0001-Added-support-for-nested-synonym-queries-in-ComplexP.patch

When using nested queries in ComplexPhrases, and a part of the query is a SynonymQuery, an
exception is thrown from  addComplexPhraseClause:

{{throw new IllegalArgumentException("Unknown query type:"}}
{{ + childQuery.getClass().getName());}}

Examples (dogs and tv are synonyms):

{{"(cats OR dogs) cigar"}}

"platform* (video* OR tv)"~10

The bug is similar in nature to LUCENE-8305, in that SynonymQuery support was added to ComplexPhraseQueryParser
(in LUCENE-7695), but was not expanded to nested queries.

The fix is similar to the one in LUCENE-8305, namely to add the same logic in addComplexPhraseClause as
in rewrite.

See attached patch.



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