Hi
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 = Jac
Sort of… if you indexed the full value of the field (and you’re looking for
truly exact matches) as a string field type you could facet on that field with
facet.mincount=2 and the facets returned would be the ones with duplicate
values. You’d have to drill down on each of the facets returned to
@lucene.apache.org
Subject: Find duplicates
Hi
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:
And if I am correct, enabling docValues will do this kind of grouping
as part of the indexing with docValues data structure (per segment).
So, all one has to do is to get it back (through faceting).
Regards,
Alex.
Personal: http://www.outerthoughts.com/ and @arafalov
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