Is your feature request related to a problem? Please describe
To support terms and multi terms aggregations / terms queries, star tree index needs to support indexing of keyword fields.
Describe the solution you'd like
To start with we'll support keyword fields as part of star tree index mapping. We will support keyword fields as only dimensions as metrics are generally associated with numeric fields.
Related component
Indexing:Performance
Describe alternatives you've considered
No response
Additional context
No response