Bom, estou usando filter no meu dataTable (primefaces), porém se eu não setar nenhum valor no filtredValue da o WARNING abaixo:
WARNING: DataTable formPacientes:dataTablePacientes has filtering enabled but no filteredValue model reference is defined, for backward compatibility falling back to page viewstate method to keep filteredValue. It is highly suggested to use filtering with a filteredValue model reference as viewstate method is deprecated and will be removed in future.
Porque preciso definir um filttredValue ?