Specifically, the pre-processing can be done with
UpdateRequestProcessors:
https://lucene.apache.org/solr/guide/7_2/update-request-processors.html
In your case, you probably want to chain
*) CloneUpdate:
http://www.solr-start.com/javadoc/solr-lucene/org/apache/solr/update/processor/CloneFieldUpdat
Hi,
I think your requirement of exporting back to CSV is fine but it's quite
normal for there to be some transformation steps on input and/or output...
and that such steps you mostly do yourself (not Solr). That said, one
straight-forward solution is to have your spatial field be redundant with
t
