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db/migration/V010__indexes.sql

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+-- =============================================================
+-- V010__indexes.sql
+-- B-tree indexy pro časté dotazy (plán, telemetrie, ceny, audit, EV, režimy).
+-- Pozn.: idx_ev_session_active na (charger_id, session_end) je ve V006;
+-- zde idx_ev_session_site_active doplňuje vyhledávání aktivní session podle site.
+-- =============================================================
+
+-- Planning (control exporter hledá aktivní plán pro aktuální slot)
+CREATE INDEX IF NOT EXISTS idx_planning_run_site_status
+    ON ems.planning_run (site_id, status, created_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_planning_interval_run_start
+    ON ems.planning_interval (run_id, interval_start);
+
+-- Telemetrie (dashboard čte poslední hodnoty)
+CREATE INDEX IF NOT EXISTS idx_telemetry_inverter_site_time
+    ON ems.telemetry_inverter (site_id, measured_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_telemetry_ev_site_time
+    ON ems.telemetry_ev_charger (site_id, measured_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_telemetry_hp_site_time
+    ON ems.telemetry_heat_pump (site_id, measured_at DESC);
+
+-- Market prices (forecast + planning čte ceny pro horizont)
+CREATE INDEX IF NOT EXISTS idx_market_price_source_start
+    ON ems.market_interval_price (market_source, interval_start);
+
+-- Audit (dashboard čte dnešní data)
+CREATE INDEX IF NOT EXISTS idx_audit_interval_site_start
+    ON ems.audit_interval (site_id, interval_start DESC);
+
+-- EV session (control exporter + UI hledá aktivní session podle lokality)
+CREATE INDEX IF NOT EXISTS idx_ev_session_site_active
+    ON ems.ev_session (site_id, session_end)
+    WHERE session_end IS NULL;
+
+-- Operating mode log
+CREATE INDEX IF NOT EXISTS idx_mode_log_site_time
+    ON ems.site_operating_mode_log (site_id, activated_at DESC);