Hello, thank you for your responses. Ok, therefore I have to archive this problem with no appropriate solution in Solr, and try to do it with a relation-based DB such as mySQL or Postgres. Build the custom sort function could be a valid solution instead of use the slower mySQL or try Postgres (I never used Postgres) or I have to forgot it? Thanks!
Luca On Saturday, August 19, 2017 1:02 AM, Rick Leir <rl...@leirtech.com> wrote: Luca Walter has got the best word on this, you should use SQL for sorting (maybe mySQL or Postgres). If you also need searching, you can create a Solr index by ingesting from the SQL database. The Solr index would be just used for searching. Cheers -- Rick -- Sorry for being brief. Alternate email is rickleir at yahoo dot com