> In my case, my vote will keep update in database, but the > ExternalFileField > since like the value will get from a file. > > so if I using ExternalFileField, is that anyway to > read the value from > index actually ?
You could read values from DB and dump them into a text file in a periodic manner. Not used by myself but you can find this post relevant. http://sujitpal.blogspot.com/2011/05/custom-sorting-in-solr-using-external.html
