[jira] [Resolved] (SOLR-2996) make "q=*" not suck in the lucene and edismax parsers

["Yonik Seeley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-2996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yonik Seeley resolved SOLR-2996.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 5.0
                   4.2
    
> make "q=*" not suck in the lucene and edismax parsers
> -----------------------------------------------------
>
>                 Key: SOLR-2996
>                 URL: https://issues.apache.org/jira/browse/SOLR-2996
>             Project: Solr
>          Issue Type: Improvement
>          Components: query parsers
>            Reporter: Hoss Man
>             Fix For: 4.2, 5.0
>
>         Attachments: SOLR-2996.patch
>
>
> More then a few users have gotten burned by thinking that "{{\*}}" is the appropriate syntax for "match all docs" when what it really does (unless i'm mistaken) is create a prefix query on the default search field using a blank string as the prefix.
> since it seems very unlikely that anyone has a genuine usecase for making a prefix query with a blank prefix, we should change the default behavior of the LuceneQParser and EDismaxQParsers (and any other Qparsers that respect {{\*:\*}} if i'm forgetting them) to treat this situation the same as {{\*:\*}}.  we can offer a (local)param to force the old behavior if someone really wants it.

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