[SOLR-8623] JSON FacetAPI with enumField throws "Expected numeric field type"

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 5.4
• Component/s: Facet Module, faceting
• Assignee: Unassigned
• Reporter: Nikolai Weh
• Created: 01/Feb/16 01:40
• Updated: 01/Feb/16 01:42

Description

Hi,

I've posted this issue about 3 weeks ago on the solr-user mailing list here:

http://mail-archives.apache.org/mod_mbox/lucene-solr-user/201601.mbox/%3C568EEF90.8050100%40gmail.com%3E

Basically, when using the json facet api on an enum field, like this:

    json.facet={
      states: {field: state}, dates: {field: insertdate}
    }

where state is an enum, i get an error:

  "error":{
    "msg":"Expected numeric field type
:state{type=auState,properties=indexed,stored,docValues}",
    "code":400}

The full example can be found here: https://gist.github.com/xou/33fd7aab7afe3cebb28b

And a quick-and-dirty patch can be found here: http://bildungsresistenz.de/tmp.h/0001-Added-support-for-facetting-on-enum-types.patch

I'm not sure whether the patch is the right way to approach this; if it goes in the right direction i can definitely try to clean it up a bit more.

Cheers,

Niko