find similar documents before add

1. User fill m开发者_如何学编程ulti-field form (document) with date, time, title and description.
2. Check, if similar documents are stored in Solr before document saved
3. User can choose, save this document or not.

How to implement in Solr "find similar documents"?

in Lucene: FuzzyLikeThisQuery, MoreLikeThis?

but in Solr?

P.S. I use django-hastack

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Solr also has a MoreLikeThis component.