See https://discourse.hibernate.org/t/migration-hibernate-search-from-5-11-to-6-0-10-final/7136, the error message doesn’t actually point to a practical solution and that’s confusing.

Note @ScaledDecimalField is a concept specific to POJO mappers, so we’ll probably want to use org.hibernate.search.engine.backend.reporting.spi.BackendMappingHints to propagate the mapper-specific hint to the backend.