How to only count distinct facet values of each group

[Mathias Hodler <ma...@gmail.com>]

Hi,

I'm looking for a parameter like "group.truncate=true". Though I not
only want to count facets based on the most relevant document of each
group but based on all documents. Moreover if a facet value is in more
than in one document of a group it should only count once.

Example:

Doc 1:
type: shirt
color: green

Doc 2:
type: shirt
color: green

Doc 3:
type: shirt
color: blue

Doc 4:
type: pants
color: black

grouping by field 'type' should create following facet:

Color:
green: 1
blue:   1
black: 1

Thanks.