fix reload pv on dashboard

db/migration/V067__asset_heat_pump_site_index.sql

@@ -0,0 +1,8 @@
+-- =============================================================
+-- V067__asset_heat_pump_site_index.sql
+-- Zrychlení filtrování asset_heat_pump podle site_id (PostgREST).
+-- =============================================================
+
+create index if not exists idx_asset_heat_pump_site
+  on ems.asset_heat_pump (site_id);
+

db/views/R__058_vw_latest_telemetry.sql

@@ -67,9 +67,9 @@ COMMENT ON VIEW ems.vw_latest_ev_charger IS
 CREATE OR REPLACE VIEW ems.vw_latest_heat_pump
 WITH (security_invoker = false)
 AS
-SELECT DISTINCT ON (t.heat_pump_id)
-    t.site_id,
-    t.heat_pump_id,
+SELECT
+    hp.site_id,
+    hp.id                   AS heat_pump_id,
     hp.code                 AS heat_pump_code,
     t.measured_at,
     t.outdoor_temp_c,
@@ -81,11 +81,25 @@ SELECT DISTINCT ON (t.heat_pump_id)
     t.defrost_active,
     t.alarm_code,
     -- Odhadovaný COP pro aktuální venkovní teplotu
-    ems.fn_cop_estimate(t.heat_pump_id, t.outdoor_temp_c) AS cop_estimated,
+    ems.fn_cop_estimate(hp.id, t.outdoor_temp_c) AS cop_estimated,
     now() - t.measured_at   AS data_age
-FROM ems.telemetry_heat_pump t
-JOIN ems.asset_heat_pump hp ON hp.id = t.heat_pump_id
-ORDER BY t.heat_pump_id, t.measured_at DESC;
+FROM ems.asset_heat_pump hp
+LEFT JOIN LATERAL (
+  SELECT
+    thp.measured_at,
+    thp.outdoor_temp_c,
+    thp.tuv_tank_temp_c,
+    thp.water_outlet_temp_c,
+    thp.power_w,
+    thp.operating_mode,
+    thp.cop_actual,
+    thp.defrost_active,
+    thp.alarm_code
+  FROM ems.telemetry_heat_pump thp
+  WHERE thp.heat_pump_id = hp.id
+  ORDER BY thp.measured_at DESC
+  LIMIT 1
+) t ON true;
 
 COMMENT ON VIEW ems.vw_latest_heat_pump IS
 'Nejnovější telemetrická data pro každé tepelné čerpadlo včetně odhadovaného COP.