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From Toke Eskildsen>
Subject Re: [CONF] Apache Solr Reference Guide > Result Grouping
Date Tue, 03 Nov 2015 11:37:34 GMT
On Tue, 2015-11-03 at 14:53 +0530, vishal raut wrote:
> I have indexed various videos in solr which I have in my database. I want
> to search for those video titles, but there can be duplicate video titles
> as well (If the video is same but source is different, this will have
> separate entry in solr). To remove those duplicate titles while searching,
> I am using solr group on title.

And you get "Too many values for UnInvertedField faceting on field."

There is a fairly low (16M per segment or something like that) limit to
the amount of unique values that can be uninverted. DocValues has a much
higher limit (2 billion I think. At least it works with 600M+ for us).

Add your titles to a StrField with docValues, the group on that.

- Toke Eskildsen, State and University Library, Denmark

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