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From "Ryan McKinley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-1131) Allow a single field to index multiple fields
Date Tue, 28 Apr 2009 14:46:30 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12703661#action_12703661
] 

Ryan McKinley commented on SOLR-1131:
-------------------------------------

[TeeTokenFilter|http://lucene.apache.org/java/2_4_1/api/org/apache/lucene/analysis/TeeTokenFilter.html]
look interesting.  How do you imagine it could help with letting a solr Field index multiple
fields?

Using the TeeTokenFilter seems like a matter of plumbing.  Perhaps we could add some properties
to FieldType that create a SinkTokenizer and then use copyField (or something similar) to
use the existing SinkTokenizer.

I'm not familiar enought with the Sink/Tee stuff to know what we would need -- but we should
make sure any SchemaField/FieldType changes open the door to this.

> Allow a single field to index multiple fields
> ---------------------------------------------
>
>                 Key: SOLR-1131
>                 URL: https://issues.apache.org/jira/browse/SOLR-1131
>             Project: Solr
>          Issue Type: New Feature
>          Components: Analysis
>            Reporter: Ryan McKinley
>         Attachments: SOLR-1131-IndexMultipleFields.patch
>
>
> In a few special cases, it makes sense for a single "field" (the concept) to be indexed
as a set of Fields (lucene Field).  Consider SOLR-773.  The concept "point" may be best indexed
in a variety of ways:
>  * geohash (sincle lucene field)
>  * lat field, lon field (two double fields)
>  * cartesian tiers (a series of fields with tokens to say if it exists within that region)

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