solr/search/admin/luke?show=schema&wt=json&indent=true gives you schema
information. Look for all fields that are string, int etc and test if they are
either indexed are have docValues.
> From:Michael Joyner <mich...@newsrx.com>
> Sent: Thursday 10th August 2017 16:12
> To: firstname.lastname@example.org
> Cc: Jason Carter <ja...@newsrx.com>
> Subject: Is there a way to determine fields available for faceting for a
> search without doing the faceting?
> Hey all!
> Is there a way to determine fields available for faceting (those with
> data) for a search without actually doing the faceting for the fields?