Perhaps https://issues.apache.org/jira/browse/SOLR-7452 ?
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On 5 September 2016 at 23:07, Nick Vasilyev <nick.vasily...@gmail.com> wrote:
> Hi, I need to get the number of distinct values of a field and I am getting
> different counts between the json.facet interface and group.ngroups. Here
> are the two queries:
>
> {'q': '*:*',
> 'rows': 0,
> 'json.facet': '{'mfr': "unique('mfr')"}'
> })
>
> This brings up around 6,000 in the mfr field.
>
> However, if I run the following query, I get around 22,000:
> {'q': '*:*',
> 'rows': 0,
> 'group': 'true',
> 'group.ngroups': 'true',
> 'group.field': 'mfr' }
>
> I am running solr 6.1.0 with 4 shards, I ran through some estimates and it
> looks like each shard has around 6k manufacturers. Does anyone have any
> ideas why this is happening?
>
> Thanks
