34 lines
1.5 KiB
SQL
34 lines
1.5 KiB
SQL
-- ============================================================
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-- 15min continuous aggregate telemetrie střídače (dashboard sloty)
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-- ============================================================
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-- Zarovnáno s 15min sloty UI (UTC time_bucket = floorSlotUtcMs v frontendu).
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-- Hodinový CA telemetry_inverter_hourly zůstává pro dlouhé grafy / legacy.
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CREATE MATERIALIZED VIEW IF NOT EXISTS ems.telemetry_inverter_15m
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WITH (timescaledb.continuous) AS
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SELECT
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time_bucket('15 minutes', measured_at) AS slot_start,
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site_id,
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AVG(pv_power_w)::INT AS avg_pv_w,
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AVG(battery_power_w)::INT AS avg_battery_w,
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AVG(grid_power_w)::INT AS avg_grid_w,
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AVG(load_power_w)::INT AS avg_load_w,
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LAST(battery_soc_percent, measured_at) AS last_soc_pct,
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COUNT(*) AS sample_count
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FROM ems.telemetry_inverter
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GROUP BY slot_start, site_id
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WITH NO DATA;
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-- Refresh: ≥2× time_bucket (15 min) → start_offset > 30 min
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SELECT add_continuous_aggregate_policy(
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'ems.telemetry_inverter_15m',
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start_offset => INTERVAL '45 minutes',
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end_offset => INTERVAL '1 minute',
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schedule_interval => INTERVAL '15 minutes'
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);
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COMMENT ON MATERIALIZED VIEW ems.telemetry_inverter_15m IS
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'Čtvrthodinové agregáty telemetrie střídače. TimescaleDB continuous aggregate.
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Refresh každých 15 minut. Dashboard přehled (sloty 15 min).
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View vw_telemetry_15m_7d je v repeatable R__vw_telemetry_15m_7d.sql.';
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