Is it possible to query across multiple partitions?

## Context
I would like to query documents in multiple partitions. So, instead to use `partitionedList(string)` I would pass an array as a parameter.

I didn't find this ideia even in CouchDB documentation, so I believe this might be a misunderstanding on my part. So my question is, why doesn't that make sense as a desirable feature?

No source file, test, or entry point is named. Start by reviewing Nano's partitionedList(string) behavior alongside the CouchDB documentation, then determine whether array-based multi-partition queries are supported or desirable. Done means the question has a clear feasibility answer and, if appropriate, defined feature requirements.

Written by the indexing model from the issue text.