Analytics boundary

Status: target contract (PR2+). Do not scatter ad-hoc SQL through React.

Boundary

React asks → typed service call → DataFusion SQL / views → Arrow → thin UI frame

Domains (planned)

runtime · sensor_health · weather · economizer · comfort · airside · hydronic · mechanical_cooling · metering · schedules · equipment · rcx · wattlab_exports

Each domain: typed inputs, params, SQL, Arrow schema, null/unit rules, tests.

Today

• FDD: crates/fdd_sql + fdd_rules (production)
• Analytics APIs: services/central/src/analytics/ + POST /api/analytics/{runtime,sensor-health,schedule,mechanical-cooling,economizer,rcx/ahu,rcx/vav,metering}
  • Engine: central-analytics-v1 (pure Rust; DataFusion SQL wiring next — see MILESTONE_C_ANALYTICS_MATRIX)
  • Runtime + economizer: live compute from inline samples/series; other families schema stubs
• RCx / Overview UI: still largely pandas via frontend/web/app/analytics.py + rcx_plots.py — migrate per matrix

No arbitrary operator SQL editor. Integrator SQL lab (if any) is separate and gated.