Hi, I'm new to Solr, and I'm having a problem with faceting. I would really appreciate it if you could help :)
I have a set of documents in JSON format, which I could post to my Solr core using the post.jar tool. Each document contains two fields, namely "startDate" and "endDate", both of which are of type "date". Conceptually, I would like to have a third field "timeSpan" that is automatically generated from the return value of function query "ms(endDate, startDate)", and do range facet on it, i.e. compute the distribution of "timeSpan", among either all of or a filtered subset of the documents. I have tried to find ways of both directly faceting the function return values and automatically generate the "timeSpan" field during indexing, but without luck yet. Suggestions are greatly appreciated! Best, Yubing
