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https://issues.apache.org/jira/browse/SOLR-14557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17172345#comment-17172345
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Mikhail Khludnev commented on SOLR-14557:
-----------------------------------------
Trap syntax prevails at
[https://lucene.apache.org/solr/guide/8_6/local-parameters-in-queries.html],
however the safer one is mentioned there as well. I think it make sense to ban
{{\\{!prefix}}}syntax from 9.0.
> Unable to parse local params followed by parenthesis like {!lucene}(gigabyte)
> -----------------------------------------------------------------------------
>
> Key: SOLR-14557
> URL: https://issues.apache.org/jira/browse/SOLR-14557
> Project: Solr
> Issue Type: Bug
> Components: query parsers
> Reporter: Mikhail Khludnev
> Assignee: Mikhail Khludnev
> Priority: Major
> Labels: painful
> Attachments: SOLR-14557.patch, SOLR-14557.patch, SOLR-14557.patch
>
>
> 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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