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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-1131) Allow a single field type to index multiple fields
Date Wed, 09 Dec 2009 16:49:18 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12788156#action_12788156
] 

Yonik Seeley commented on SOLR-1131:
------------------------------------

bq. That then requires those dynamic fields to be present, which I'd rather not have to do.


That's sort of a separate question: if one were allowed to register a dynamic field (not sure
if this capability is present), then it could be registered if it didn't exist.   

Also, you have subFieldType="double" in the schema... and that requires that the "double"
field type be defined.  Why not have subFieldSuffix="_d" and require the "_d" dynamic field
be defined?  Seems like the same complexity level.
 
> > Another thing to keep in mind - not all subfields will always be of the same type.
> Agreed, but I don't think this is baked in to the generic capabilities, just the Point
stuff,

For a specific point implementation, that's fine.  But if you use a point type that can do
cartesian grid stuff, then you already have different field types.  But I guess subFieldType="double"
need only apply to some of the subfields (the ones that index the points).

> Allow a single field type to index multiple fields
> --------------------------------------------------
>
>                 Key: SOLR-1131
>                 URL: https://issues.apache.org/jira/browse/SOLR-1131
>             Project: Solr
>          Issue Type: New Feature
>          Components: Schema and Analysis
>            Reporter: Ryan McKinley
>            Assignee: Grant Ingersoll
>             Fix For: 1.5
>
>         Attachments: SOLR-1131-IndexMultipleFields.patch, SOLR-1131.patch, SOLR-1131.patch,
SOLR-1131.patch, SOLR-1131.patch, SOLR-1131.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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