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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-4646) lowercaseOperators is enabled by default for edismax query parser
Date Wed, 03 Apr 2013 17:39:16 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621092#comment-13621092
] 

Yonik Seeley commented on SOLR-4646:
------------------------------------

bq. But, in a larger sense, the original goal od edismax was to try to establish a new and
higher bar of usability

Right - lowercase "and" and "or" were meant to be a natural language improvement (while not
being that bad when used as literals instead of operators).  The current behavior is certainly
not a bug and Tomas had the correct doc fix.

                
> lowercaseOperators is enabled by default for edismax query parser
> -----------------------------------------------------------------
>
>                 Key: SOLR-4646
>                 URL: https://issues.apache.org/jira/browse/SOLR-4646
>             Project: Solr
>          Issue Type: Bug
>          Components: query parsers
>    Affects Versions: 4.1, 4.2
>            Reporter: Alexander Koval
>
> [Documentation|http://wiki.apache.org/solr/ExtendedDisMax#lowercaseOperators] says:
> *lowercaseOperators*
> This param controls whether to try to interpret lowercase words as boolean operators
such as "and", "not" and "or". Set {{&lowercaseOperators=true}} to allow this. Default
is {{"*false*"}}.
> But in fact {{lowercaseOperators=true}} by default.
> And if one of boolean operators in lowercase is present in query it turns off {{mm}}
parameter:
> * {{q=Young+6+or+Ariston&defType=edismax&qf=name&mm=100%25&debugQuery=true}}
>   {{"parsedquery_toString": "+((name:young) (name:6) (name:ariston))"}}
> * {{q=Young+6+or+Ariston&defType=edismax&qf=name&mm=100%25&lowercaseOperators=false&debugQuery=true}}
>   {{"parsedquery_toString": "+(((name:young) (name:6) (name:ariston))~3)"}}

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