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From Jan Høydahl (Commented) (JIRA) <>
Subject [jira] [Commented] (SOLR-3101) Add an operator to edismax for word order (Proximity / NEAR)
Date Wed, 11 Apr 2012 20:15:17 GMT


Jan Høydahl commented on SOLR-3101:

Cool. Of course a proper parser framework with a grammar would make it easier to implement
this correctly (LUCENE-1567), but with the current edismax we could try to support the simple
A NEAR/N B as a start?
> Add an operator to edismax for word order (Proximity / NEAR)
> ------------------------------------------------------------
>                 Key: SOLR-3101
>                 URL:
>             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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