zrychleni pv forecast per day

db/migration/V066__latest_telemetry_distinct_on_indexes.sql

@@ -0,0 +1,18 @@
+-- =============================================================
+-- V066__latest_telemetry_distinct_on_indexes.sql
+-- Zrychlení view ems.vw_latest_* (PostgREST dashboard endpoints).
+--
+-- View používají DISTINCT ON (...) s ORDER BY ... measured_at desc.
+-- Bez odpovídajících indexů může plán spadnout na scan+sort nad
+-- velkými Timescale hypertabulkami (sekundy latency).
+-- =============================================================
+
+create index if not exists idx_telemetry_inverter_site_inverter_time_desc
+  on ems.telemetry_inverter (site_id, inverter_id, measured_at desc);
+
+create index if not exists idx_telemetry_ev_site_charger_connector_time_desc
+  on ems.telemetry_ev_charger (site_id, charger_id, connector_id, measured_at desc);
+
+create index if not exists idx_telemetry_hp_site_heat_pump_time_desc
+  on ems.telemetry_heat_pump (site_id, heat_pump_id, measured_at desc);
+