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https://issues.apache.org/jira/browse/SOLR-5116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13729578#comment-13729578
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Jack Krupansky commented on SOLR-5116:
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But I am a solid +1 for making Solr handle "*" and "-*" queries efficiently,
and automatically.
> Rewrite field:* as if field:[* TO *] so field type can optimize
> ---------------------------------------------------------------
>
> Key: SOLR-5116
> URL: https://issues.apache.org/jira/browse/SOLR-5116
> Project: Solr
> Issue Type: Improvement
> Components: query parsers
> Reporter: David Smiley
>
> The queries {{field:*}} and {{field:[* TO *]}} are semantically equivalent
> but the latter is potentially must faster since the field type can intercept
> it to return a more optimal implementation than a brute force scan of the
> terms. The trie numeric fields do this. The spatial ones don't but they
> could be rewritten easily to do so.
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