Source-verified against nextgraph-rs:
- nextgraph-current-state.md: NextGraph keeps ONE local oxigraph store per
session; each synced repo is a named graph. sparql_query with NO anchor
(UserSite/None) queries the UNION of all synced graphs (set_default_graph_as
_union); with an anchor it is restricted to one repo. Union is read-only
(updates need a doc anchor). No reactive SPARQL (one-shot). Root cause of the
ORM fan-out hang: orm_start_graph opens every graph in scope; a fresh/unsynced
per-entity doc → RepoNotFound aborts the subscription → the 75s never-fires.
- read-model.md (new): the read model — events via the global index (the one
enumeration hack); everything else by following a shared graph, opened/synced,
then listed via a single anchorless union sparql_query (never the ORM per-doc
fan-out); reactivity via re-query on a doc_subscribe/ORM change signal. Plus
the minimal broker probe to confirm the union behavior.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Sylvain Duchesne
5acc07a7e3