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From "Steve Rowe (JIRA)" <>
Subject [jira] [Commented] (SOLR-3251) dynamically add field to schema
Date Fri, 05 Apr 2013 19:37:16 GMT


Steve Rowe commented on SOLR-3251:

bq. Similarly, we could disallow new field additions for field types that specify per-field
similarity, docvalues format, or postings format.
AFAIK, at the Lucene level, a field that hasn't been used yet is the same as a field that
doesn't exist (since we don't pre-define fields).
If so, adding a new field at the solr level and using a field for the first time should be
indistinguishable to Lucene? Any issues would seem to be limited to the interface between
Lucene and Solr (such as SchemaCodecFactory).

Yeah, similarity is not used at index time, so forget I mentioned that :).  

But for the docvalues and postings formats, I was talking about SchemaCodecFactory, so it
is exactly the interface issues I meant to say we could avoid by not allowing those features
for newly added fields.  Or maybe I don't get what you're saying?

My thought was that for schema-less/type-guessing, field types will be fairly basic, and unlikely
to need per-field codec settings.
> dynamically add field to schema
> -------------------------------
>                 Key: SOLR-3251
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Yonik Seeley
>            Assignee: Steve Rowe
>         Attachments: SOLR-3251.patch, SOLR-3251.patch, SOLR-3251.patch
> One related piece of functionality needed for SOLR-3250 is the ability to dynamically
add a field to the schema.

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