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https://issues.apache.org/jira/browse/SOLR-217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12492324
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Yonik Seeley commented on SOLR-217:
-----------------------------------

This is a unique enough of a requirement, I'm not sure an additional 
configuration switch is warranted.

However, another solution might be to allow fields to be unstored *and* 
unindexed (essentially doing nothing).  That would allow you to map a dynamic 
field of "*" to an unstored + unindexed field.
It would also allow people to transition schemas + older clients.  They could 
change the old field to unstored + unindexed and use a copyField to move it to 
the new field.


> schema option to ignore unused fields
> -------------------------------------
>
>                 Key: SOLR-217
>                 URL: https://issues.apache.org/jira/browse/SOLR-217
>             Project: Solr
>          Issue Type: Improvement
>          Components: update
>    Affects Versions: 1.2
>            Reporter: Will Johnson
>            Priority: Minor
>             Fix For: 1.2
>
>         Attachments: ignoreUnnamedFields.patch
>
>
> One thing that causes problems for me (and i assume others) is that Solr is 
> schema-strict in that unknown fields cause solr to throw exceptions and there 
> is no way to relax this constraint.  this can cause all sorts of serious 
> problems if you have automated feeding applications that do things like 
> SELECT * FROM table1 or where you want to add other fields to the document 
> for processing purposes before sending them to solr but don't want to deal 
> with 'cleanup'

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