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Posted to dev@lucene.apache.org by "Alessandro Benedetti (JIRA)" <ji...@apache.org> on 2019/01/27 13:14:00 UTC

[jira] [Created] (SOLR-13172) Deprecate MoreLikeTHisHandler

Alessandro Benedetti created SOLR-13172:
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             Summary: Deprecate MoreLikeTHisHandler
                 Key: SOLR-13172
                 URL: https://issues.apache.org/jira/browse/SOLR-13172
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: MoreLikeThis
            Reporter: Alessandro Benedetti


Following the discussions with [~dsmiley@mac.com]
Currently the Lucene More Like This functionality is offered in Apache Solr through :
 * More Like This Handler
 * More Like This Component
 * More Like This Query Parser

The query parser is the most flexible approach and it is well supported, it is a good candidate to become the main entry point if a user wnat the MLT functionality.

The More Like This component is quite coupled with the others but it has a sense and offers slightly different features from the query parser ( *Using MoreLikeThis as a search component returns similar documents for each document in the response set.*)

So the proposal here is to deprecate and remove the More Like This Handler, to ease the maintenance  of the functionality and to simplify the way new users approach it.



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