Re: How could I get the bucket (or group) which value of the grouping field is null by using Facet API?

[Shawn Heisey]

On 5/24/22 13:48, WU, Zhiqing wrote:

Is there any setting in Facet API I could change to get the 'field = null'
group?

I found a "facet.missing" parameter which might do what you're after.

https://solr.apache.org/guide/8_8/faceting.html#field-value-faceting-parameters

Thanks,
Shawn