boring-semantic-layer v0.3.12

Highlights

This release focuses on join planning and reliability.

• Added deferred join_one support for dimension lookups after aggregation (#220)
• Added grain-aware join_one behavior via is_entity dimensions (#219)
• Pruned unused dimension joins from generated queries for leaner SQL (#228)
• Fixed demo_bsl_v2.py so the example script works again (#236)
• Added regression coverage for read-only DuckDB joined dimension introspection (#237, refs #232)

Why upgrade

If you use joined semantic models, this release improves correctness and efficiency:

• better handling of dimension lookups across joins
• better join behavior when entity grain is defined explicitly
• fewer unnecessary joins in compiled queries
• better protection against regressions around read-only DuckDB joined introspection (#232)

Included changes

• #219 — grain-aware join_one via is_entity dimensions
• #220 — deferred join_one for dimension lookups after aggregation
• #228 — prune unused dimension joins from generated queries
• #232 — regression coverage for read-only DuckDB joined introspection
• #236 — repair demo_bsl_v2.py
• #237 — add regression test coverage for read-only joined dimensions

Install

pip install -U boring-semantic-layer==0.3.12