Files
syncrow-data/fact_thermostat_duration/fact_thermostat_duration.sql
Dona Maria Absi 8b276e9816 changes
2025-03-06 21:52:14 +03:00

55 lines
1.6 KiB
SQL

WITH avg_set_temp AS (
-- Step 1: Compute the average set temperature per device per hour
SELECT
device.uuid AS device_id,
device.space_device_uuid AS space_id,
event_time::date AS date,
DATE_PART('hour', event_time) AS hour,
AVG("device-status-log".value::INTEGER) AS avg_set_temp
FROM device
LEFT JOIN "device-status-log"
ON device.uuid = "device-status-log".device_id
LEFT JOIN product
ON product.uuid = device.product_device_uuid
WHERE product.name = 'Smart Thermostat'
AND "device-status-log".code = 'temp_set'
GROUP BY 1,2,3,4
),
avg_set_temp_filled AS (
SELECT
device_id,
space_id,
date,
hour,
avg_set_temp,
COALESCE(
avg_set_temp,
LAG(avg_set_temp) OVER (
PARTITION BY device_id
ORDER BY date, hour
)
) AS filled_avg_set_temp
FROM avg_set_temp
)
SELECT
d.uuid AS device_id,
d.space_device_uuid AS space_id,
l.event_time::date AS date,
DATE_PART('hour', l.event_time) AS hour,
CASE WHEN l.code = 'temp_current' THEN l.value END AS current_temp,
f.filled_avg_set_temp
FROM device d
LEFT JOIN "device-status-log" l
ON d.uuid = l.device_id
LEFT JOIN product p
ON p.uuid = d.product_device_uuid
LEFT JOIN avg_set_temp_filled f
ON f.device_id = d.uuid
AND f.date = l.event_time::date
and f.date = l.event_time::date AND f.hour <= DATE_PART('hour', l.event_time)
WHERE p.name = 'Smart Thermostat'
and l.code = 'temp_current'
ORDER BY d.uuid, l.event_time;