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Posted to dev@lucene.apache.org by "Chris Bleakley (JIRA)" <ji...@apache.org> on 2013/01/10 01:06:12 UTC

[jira] [Commented] (SOLR-4258) Edismax query behavior change between 3.5 and 3.6-4.x when undefined field in QF param

    [ https://issues.apache.org/jira/browse/SOLR-4258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13549213#comment-13549213 ] 

Chris Bleakley commented on SOLR-4258:
--------------------------------------

Updated patch to reflect latest changes from edismax refactor
                
> Edismax query behavior change between 3.5 and 3.6-4.x when undefined field in QF param
> --------------------------------------------------------------------------------------
>
>                 Key: SOLR-4258
>                 URL: https://issues.apache.org/jira/browse/SOLR-4258
>             Project: Solr
>          Issue Type: Bug
>          Components: search
>    Affects Versions: 3.6, 4.0
>            Reporter: Chris Bleakley
>            Priority: Minor
>         Attachments: SOLR-4258.patch, SOLR-4258.patch
>
>
> If the following query conditons are met:
> (1) include an operator in your query string ( "AND", "OR", "NOT" ) 
> (2) include a field in your QF parameter that's not defined your schema
> the query behavior for the edismax handler has changed from 3.5 to 3.6 (and continues into 4.x). The behavior can be recreated using following parameters on the stock example index:
> q=bar AND grill
> deftype=edismax
> qf=title INVALID
> debugQuery=true
> lowercaseOperators=false
> http://localhost:8983/solr/select?q=bar%20AND%20grill&defType=edismax&qf=title%20INVALID&debugQuery=true&lowercaseOperators=false
> Testing between 3.5 and 3.6 show the following differences between the parsed query:
> in 3.5   : +(+(title:bar) +(title:grill))
> in 3.6.0 : +(((title:bar) (title:and) (title:grill))~3)
> In 3.6 the operator has been lowercased and included in the query, even though lowercaseOperators is "false"
> I couldn't find any docs that explain how a query should behave with an invalid QF param or that the behavior had changed. I took a stab at a patch to make 4.x behave as < 3.6, but again, I'm not exactly sure what the behavior should be. The patch removes operators from the query string if "lowercaseOperators" is false and the query parsing falls past the initial parsing attempt. Thanks!

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