Solr analysis parameter: parameter_index contains special charaters

[Erikdzo]

parameter_index field contains special characters ex. (),>. This makes filtering in the frontend more difficult. Currently I see that, in the analytical_data index the special characters are replaced with _. The current solution is to replace special characters in the frontend, but it would be nicer if they were corrected in the index, so the frontend would not need to worry about this.

[ollehints]

needs to be changed in the database to match the solr index field names