Is druid only good for OLAP workload?

Can druid be useful for non OLAP workload? Data containing only dimension values without measures.

Some people have put only values that could be considered "dimensions"
in Druid to some level of success. It really depends on what kinds of
things you are wanting to do with the data. If you are looking for a
key-value store in order to look up your dimension values based on an
id, Druid is likely not the right choice.