Query: response structure (one vs multiple feature collections)

[cportele]

The current draft expects an array of feature collections. The earlier drafts had a single feature collection.

In most cases (that I have to work with) a single feature collection is the better representation and easier to process (with globally unique feature ids, deduplication of features that were selected multiple times, etc.).

At a minimum, both options should be specified - as profiles.

[cportele]

Meetings 2026-06-26:

• A single feature collection is in general preferred (this was also discussed in Records, e.g., to enable directly using the response in GeoJSON tooling).
• An option could also be to create a collection on the server.
• The current approach could be an option for a vendor.