I am using elasticsearch/kibana - 7.9.8 and I am trying create a suggestions API using search_as_you_type data type. However, when I add the mapping to the index with certain fields as search_as_you_type kibana index pattern identified those fields as 'unknown' as shown in the below picture which I think end up kibana not being able to discover the indexed documents using an index pattern.
Is there a way to properly add the date types into kibana index pattern ?

