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https://issues.apache.org/jira/browse/SOLR-3189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269561#comment-13269561
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Luca Cavanna commented on SOLR-3189:
------------------------------------

Guys, don't you think this feature could be useful? Is there something I can do 
to convince you? :)
                
> Removing a field using TemplateTransformer
> ------------------------------------------
>
>                 Key: SOLR-3189
>                 URL: https://issues.apache.org/jira/browse/SOLR-3189
>             Project: Solr
>          Issue Type: Improvement
>          Components: contrib - DataImportHandler
>            Reporter: Luca Cavanna
>            Priority: Minor
>         Attachments: SOLR-3189.patch
>
>
> While importing documents through DataImportHandler I need to remove some 
> fields from the final SolrDocument before it's submitted to Solr.
> My usecase: the import query returns an A column which I use to fill in the B 
> field on the Solr instance. My Solr schema contains both the A and B fields, 
> so they are both filled in through dih. I'd like to force the deletion of A 
> from the generated SolrDocument since I need a value only on the B field and 
> want to leave empty the A field. The only way I found is using 
> ScriptTransformer, so I thought it could be useful to add this feature to the 
> TemplateTransformer.

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