> Hi Bryan, > > What is the fieldtype of the groupField? You can only group by field > that is of type string as is described in the wiki: > http://wiki.apache.org/solr/FieldCollapsing#Request_Parameters > > When you group by another field type a http 400 should be returned > instead if this error. At least that what I'd expect. > > Martijn
Martijn, The group-by field is a string. I have been unable to figure how a date comes into the picture at all, and have basically been wondering if there is some problem in the grouping code that misaligns the field values from different results in the group, so that it is not comparing like with like. Not a strong theory, just the only thing I can think of. -- Bryan
