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From Jan Høydahl (Updated) (JIRA) <j...@apache.org>
Subject [jira] [Updated] (SOLR-3101) Add an operator to edismax for word order (Proximity / NEAR)
Date Wed, 11 Apr 2012 12:57:17 GMT

     [ https://issues.apache.org/jira/browse/SOLR-3101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jan Høydahl updated SOLR-3101:
------------------------------

    Fix Version/s: 4.0
          Summary: Add an operator to edismax for word order (Proximity / NEAR)  (was: Add
an operator to edismax for word order)

Suggested syntax:

{noformat}
A NEAR/N B      - e.g. foo NEAR/5 bar will find bar within 5 positions from foo, same as "foo
bar"~5
A ONEAR/N B     - ordered near, finds B within 5 positions *after* A
{noformat}

A question is if span queries allow us to do  more complex proximity expressions like {{"a
brown fox" NEAR ("blue fence" OR "green gate")}}
                
> Add an operator to edismax for word order (Proximity / NEAR)
> ------------------------------------------------------------
>
>                 Key: SOLR-3101
>                 URL: https://issues.apache.org/jira/browse/SOLR-3101
>             Project: Solr
>          Issue Type: Sub-task
>          Components: query parsers
>            Reporter: Mike
>             Fix For: 4.0
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> A project I'm working on requires *word order* searching. The users are accustomed to
Sphinx search, and expect a query like [ A << B ] to return only documents that contain
the term A before the term B.
> I believe this can currently be done with the surround parser (SOLR-2703), but we lack
an operator for it. It would be great to add it, so that word order searches can be combined
by users into sophisticated queries. 
> Note that this should also support a query like [ A << A], which would require
that the term be in the document twice (the first instance before the second).
> This issue is part of a meta issue, SOLR-3028, that is requesting two other operators
in edismax (quorum search and exact match).

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