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https://issues.apache.org/jira/browse/SOLR-3729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13457520#comment-13457520
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Jack Krupansky commented on SOLR-3729:
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I concur that the patch is insufficient. Unfortunately, to prevent both false
positives and false negatives, the regex would have to include the full "logic"
of what starts and ends a term. Certainly not undoable, but the test cases
alone are daunting. Still, it is a shame that the base case of a parenthesized
match-all query can't be supported.
> ExtendedDismaxQParser (edismax) doesn't parse (*:*) properly
> ------------------------------------------------------------
>
> Key: SOLR-3729
> URL: https://issues.apache.org/jira/browse/SOLR-3729
> Project: Solr
> Issue Type: Bug
> Components: query parsers
> Affects Versions: 4.0-BETA
> Reporter: Jack Krupansky
> Attachments: SOLR-3729.patch
>
>
> I just happen to notice that (\*:\*) is not parsed properly by the edismax
> (ExtendedDismaxQParser) query parser in 4.0-beta. It appears to require
> spaces before and after the \*:\*, otherwise it treats the colon as part of a
> wildcard term (see the escaping below). I haven’t tried other releases yet.
> My original query:
> http://localhost:8983/solr/select/?debugQuery=true&q=(*:*)&defType=edismax
> Produces this:
> {code}
> <str name="rawquerystring">(*:*)</str>
> <str name="parsedquery">(+DisjunctionMaxQuery((text:*\:*)))/no_coord</str>
> <str name="parsedquery_toString">+(text:*\:*)</str>
> <str name="QParser">ExtendedDismaxQParser</str>
> {code}
> Some variations I tried:
> {code}
> <str name="rawquerystring">( *:*)</str>
> <str name="parsedquery">(+DisjunctionMaxQuery((text:*\:*)))/no_coord</str>
> <str name="parsedquery_toString">+(text:*\:*)</str>
>
> <str name="rawquerystring">(*:* )</str>
> <str name="parsedquery">(+DisjunctionMaxQuery((text:*\:*)))/no_coord</str>
> <str name="parsedquery_toString">+(text:*\:*)</str>
>
> <str name="rawquerystring">( *:* )</str>
> <str name="parsedquery">(+MatchAllDocsQuery(*:*))/no_coord</str>
> <str name="parsedquery_toString">+*:*</str>
>
> <str name="rawquerystring">(*:* -fox)</str>
> <str name="parsedquery">
> (+(DisjunctionMaxQuery((text:*\:*))
> -DisjunctionMaxQuery((text:fox))))/no_coord
> </str>
> <str name="parsedquery_toString">+((text:*\:*) -(text:fox))</str>
>
> <str name="rawquerystring">( *:* -fox)</str>
> <str name="parsedquery">
> (+(MatchAllDocsQuery(*:*) -DisjunctionMaxQuery((text:fox))))/no_coord
> </str>
> <str name="parsedquery_toString">+(*:* -(text:fox))</str>
> {code}
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