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https://issues.apache.org/jira/browse/SOLR-14557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17170183#comment-17170183
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Mikhail Khludnev edited comment on SOLR-14557 at 8/3/20, 4:45 PM:
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Prefix form of local params is quite vulnerable to syntax variations. For
example {{filter(..)}} is in a way better position: it encloses full syntax
recursively, and have explicit terminator symbol. Nether of these is true for
\{{\{!prefix local=param}synta)(}}
I see it as a coolhack made years ago and brought much pain for us later. It
would be better if -json- explicit structured syntax for queries was introduced
right there.
was (Author: mkhludnev):
Prefix form of local params is quite vulnerable to syntax variations. For
example {{filter(..)}} is in a way better position: it encloses full syntax
recursively, and have explicit terminator symbol. Nether of these is true for
{{{!prefix local=param}synta)(}}
I see it as a coolhack made years ago and brought much pain for us later. It
would be better if -json- explicit structured syntax for queries was introduced
right there.
> 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}
> \{!lucene}(foo)
> content:foo
> LuceneQParser
> {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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