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https://issues.apache.org/jira/browse/LUCY-140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marvin Humphrey resolved LUCY-140.
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Resolution: Fixed
Fixed by r1096192.
> Space-padded +/- has semantic impact in QueryParser
> ---------------------------------------------------
>
> Key: LUCY-140
> URL: https://issues.apache.org/jira/browse/LUCY-140
> Project: Lucy
> Issue Type: Bug
> Components: Search
> Reporter: Marvin Humphrey
> Assignee: Marvin Humphrey
> Priority: Minor
> Fix For: 0.1-incubating
>
> Attachments: padded_plus_minus.patch
>
>
> In Lucy's QueryParser syntax, plus and minus symbols, used to require or
> forbid terms/subqueries, should only apply if they are directly prepended.
> Right now, a bug in QueryParser.c causes them to apply when there is
> whitespace separation.
> These two query strings produce identical results, but should not:
> {noformat}
> a - b
> a -b
> {noformat}
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