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From Gonzalo Rodriguez <>
Subject RE: Find duplicates
Date Tue, 02 Dec 2014 16:04:06 GMT
Have you tried using result grouping for your query? There are some very good examples in the


-----Original Message-----
From: Peter Kirk [] 
Sent: Tuesday, December 02, 2014 9:58 AM
Subject: Find duplicates


Is it possible to formulate a Solr query which finds all documents which have the same value
in a particular field?
Note, I don't know what the value is, I just want to find all documents with duplicate values.

For example, I have 5 documents:

Doc1: field Name = Peter
Doc2: field Name = Jack
Doc3: field Name = Peter
Doc4: field Name = Paul
Doc5: field Name = Jack

If I executed the query, it would find documents Doc1 and Doc3 (Peter is the same), and Doc2
and Doc5 (Jack is the same).

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