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https://issues.apache.org/jira/browse/SOLR-14557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17133600#comment-17133600
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David Smiley commented on SOLR-14557:
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Thanks for clarifying. Then it seems there is a bug in edismax or the
underlying query parser syntax rules that we use javacc for. I know very
little of that part so you'll have to dig. I don't think SOLR-11501 is the
true cause; the former behavior short circuited the query parser altogether to
switch it at a higher level. That basically masked whatever deficiencies
edismax had and still has in parsing a Lucene query.
> eDisMax parser switch + braces regression
> -----------------------------------------
>
> Key: SOLR-14557
> URL: https://issues.apache.org/jira/browse/SOLR-14557
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: query parsers
> Reporter: Mikhail Khludnev
> Priority: Major
> Labels: painful
>
> h2. Solr 4.5
> {{/select?defType=edismax&q=\{!lucene}(foo)&debugQuery=true}}
>
> goes like
> {code}
> <str name="rawquerystring">\{!lucene}(foo)</str>
> <str name="parsedquery_toString">content:foo</str>
> <str name="QParser">LuceneQParser</str>
> {code}
> fine
> h2. Solr 8.2
> with luceneMatchVersion=4.5 following SOLR-11501 I know it's a grey zone but
> it's a question of migrating existing queries.
> {{/select?defType=edismax&q=\{!lucene}(foo)&debugQuery=true}}
> goes like
> {code}
> "querystring":"\{!lucene}(foo)",
> "parsedquery":"+DisjunctionMaxQuery(((Project.Address:lucene
> Project.Address:foo) | (Project.OwnerType:lucene Project.OwnerType:foo)
> "QParser":"ExtendedDismaxQParser",
> {code}
> blah...
> but removing braces in 8.2 works perfectly fine
> {code}
> "querystring":"\{!lucene}foo",
> "parsedquery":"+content:foo",
> "parsedquery_toString":"+content:foo",
> "QParser":"ExtendedDismaxQParser",
> {code}
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