The bullet enumerating which OpenSearch facet sub-fields change
from text+keyword to keyword-only listed audio, photo and image but
omitted location, which is in the same dynamic-template-handled
facet block per the context section. Add it for consistency.
Propose a single central Go-struct + overrides map as the source of
truth for the search index layout across bleve and OpenSearch — the
same definition drives the per-backend index mapping, the write-time
adapter, the hit-decoding path, and the KQL compiler's case-folding
rules, so the two backends cannot drift silently again.
Also records the end-to-end case-handling principle for facet data
(indexed as case-preserving keywords so aggregation buckets return
correct display values), the sibling-field pattern for geopoint on
Location, and the rationale for replacing the two backends' implicit
defaults with an explicit, backend-agnostic contract.
PR #2659 is a proof-of-concept implementation the proposal emerged
from; scope and APIs there will be revisited once this ADR lands.
* adr: Add thoughts about guest users
The approach to take has not been decide yet. This just reflects
the current research/concept work.
* adr(guests): incorporate review feedback
* Mark ADR as postponed for now
We'd like to go for a more light-weight approach as discussed in:
https://github.com/opencloud-eu/opencloud/issues/2513
Dominik Schmidt