🚀 Forward edge — profile selector

A reasoning profile selector on pgrdf.materialize so consumers can choose between RDFS, OWL 2 RL, and an extended OWL 2 RL+ rule set per call.

This page is forward-looking. The surface described here is not yet callable on main; the materialize UDF currently exposes only the unparameterised pgrdf.materialize(graph_id) signature.

Target surface

pgrdf.materialize(
    graph_id BIGINT,
    profile  TEXT DEFAULT 'owl-rl'
) → JSONB

Profile value	Rule set
'rdfs'	RDFS Plus — rdfs:subClassOf, rdfs:subPropertyOf, rdfs:domain, rdfs:range closures only. Faster; cheaper.
'owl-rl' (default)	OWL 2 RL — the current contract, carried forward unchanged.
'owl-rl-ext'	OWL 2 RL plus selected DL extensions (TBD; tracked in v0.5-FUTURE LLD).

Why it matters

Different workloads benefit from different rule sets:

• High-throughput ingest pipelines running thousands of graphs an hour may prefer 'rdfs' to bound the per-graph materialization cost.
• Reasoning-heavy analytical workloads may want 'owl-rl-ext' for the additional class-construction entailments.
• Default consumers keep 'owl-rl', the W3C-aligned middle ground.

Tracked at

SPEC.pgRDF.LLD.v0.5-FUTURE.md §3.