Release v2.15.0 · ralforion/orionbelt-semantic-layer

[2.15.0] - 2026-06-18

Governed views in the Dremio demo. The demo bootstrap now creates a governed Dremio Space with one view per curated query (A1 raw lakehouse plus A2-A7 governed), so they can be browsed and queried by name. Demonstrates saving a governed query as a reusable view.

DECIMAL columns report as NUMERIC over the Postgres wire protocol (#116). Decimal measures/metrics were coarsened to FLOAT8, so values lost scale on display (574585.00 showed as 574585.0, large values as 1.6E7). They are now reported as NUMERIC(precision, scale) (from the model's declared dataType) across the query RowDescription, the catalog metadata, and the encoded values, so BI tools render the declared scale.
DuckDB's internal main schema is hidden from BI-tool schema browsers. Dremio's Postgres source enumerates schemas from pg_tables / pg_views; those are now shadowed (alongside pg_namespace / information_schema.schemata) so only the per-model schemas appear.
Dremio federation view/filter pushdown now compiles. The pgwire flattener handles Dremio's nested derived-table pushdown (constant-folded dimension equality, CAST(... AS DECIMAL) projections) so saved views and filtered queries work; it bails when an outer filter/order would cross an inner LIMIT rather than return wrong rows.
HAVING filters on period-over-period metrics are applied. They were silently dropped by the PoP wrapper, returning unfiltered rows.

Clearer errors for incompatible-artefact combinations. Period-over-period grain mismatch, fanout, and cross-fact two-column-aggregate errors are rewritten in plain language with remediation.
Demo uses the orionbelt brand catalog as the pgwire database. The model is a schema (commerce) inside it; the Dremio source is renamed from obsl to orionbelt (path orionbelt.commerce.model).

Full Changelog: v2.14.0...v2.15.0