params

fact_hourly_energy_consumed/fact_hourly_energy_consumed.sql

@@ -1,71 +1,93 @@
-WITH total_energy AS (
+WITH params AS (
   SELECT
-        device_id,
-        event_time::date AS date,
-        EXTRACT(HOUR FROM event_time) AS hour,
-        MIN(value)::integer AS min_value,
-        MAX(value)::integer AS max_value
-    FROM "device-status-log"
-    WHERE code = 'EnergyConsumed'
-    GROUP BY device_id, date, hour
+    NULL::uuid AS device_id,     -- filter: specific device (or NULL for all)
+    NULL::date AS start_date,    -- filter: start date (or NULL for open range)
+    NULL::date AS end_date,      -- filter: end date (or NULL for open range)
+    NULL::int AS hour,           -- filter: hour of day (or NULL for all hours)
+    NULL::int AS energy_consumed_kW          -- filter: min kW consumed (or NULL for no filter)
 ),
 
+-- Total Energy Calculation
+total_energy AS (
+    SELECT 
+        log.device_id,
+        log.event_time::date AS date,
+        EXTRACT(HOUR FROM log.event_time) AS hour,
+        MIN(log.value)::int AS min_value,
+        MAX(log.value)::int AS max_value
+    FROM "device-status-log" log, params
+    WHERE log.code = 'EnergyConsumed'
+      AND (params.device_id IS NULL OR log.device_id = params.device_id)
+      AND (params.start_date IS NULL OR log.event_time::date >= params.start_date)
+      AND (params.end_date IS NULL OR log.event_time::date <= params.end_date)
+      AND (params.hour IS NULL OR EXTRACT(HOUR FROM log.event_time) = params.hour)
+    GROUP BY log.device_id, log.event_time::date, EXTRACT(HOUR FROM log.event_time)
+),
+
+-- Phase A
 energy_phase_A AS (
     SELECT 
-        device_id,
-        event_time::date AS date,
-        EXTRACT(HOUR FROM event_time) AS hour,
-        MIN(value)::integer AS min_value,
-        MAX(value)::integer AS max_value
-    FROM "device-status-log"
-    WHERE code = 'EnergyConsumedA'
-    GROUP BY device_id, date, hour
+        log.device_id,
+        log.event_time::date AS date,
+        EXTRACT(HOUR FROM log.event_time) AS hour,
+        MIN(log.value)::int AS min_value,
+        MAX(log.value)::int AS max_value
+    FROM "device-status-log" log, params
+    WHERE log.code = 'EnergyConsumedA'
+      AND (params.device_id IS NULL OR log.device_id = params.device_id)
+      AND (params.start_date IS NULL OR log.event_time::date >= params.start_date)
+      AND (params.end_date IS NULL OR log.event_time::date <= params.end_date)
+      AND (params.hour IS NULL OR EXTRACT(HOUR FROM log.event_time) = params.hour)
+    GROUP BY log.device_id, log.event_time::date, EXTRACT(HOUR FROM log.event_time)
 ),
 
+-- Phase B
 energy_phase_B AS (
     SELECT 
-        device_id,
-        event_time::date AS date,
-        EXTRACT(HOUR FROM event_time) AS hour,
-        MIN(value)::integer AS min_value,
-        MAX(value)::integer AS max_value
-    FROM "device-status-log"
-    WHERE code = 'EnergyConsumedB'
-    GROUP BY device_id, date, hour
+        log.device_id,
+        log.event_time::date AS date,
+        EXTRACT(HOUR FROM log.event_time) AS hour,
+        MIN(log.value)::int AS min_value,
+        MAX(log.value)::int AS max_value
+    FROM "device-status-log" log, params
+    WHERE log.code = 'EnergyConsumedB'
+      AND (params.device_id IS NULL OR log.device_id = params.device_id)
+      AND (params.start_date IS NULL OR log.event_time::date >= params.start_date)
+      AND (params.end_date IS NULL OR log.event_time::date <= params.end_date)
+      AND (params.hour IS NULL OR EXTRACT(HOUR FROM log.event_time) = params.hour)
+    GROUP BY log.device_id, log.event_time::date, EXTRACT(HOUR FROM log.event_time)
 ),
 
+-- Phase C
 energy_phase_C AS (
     SELECT 
-        device_id,
-        event_time::date AS date,
-        EXTRACT(HOUR FROM event_time) AS hour,
-        MIN(value)::integer AS min_value,
-        MAX(value)::integer AS max_value
-    FROM "device-status-log"
-    WHERE code = 'EnergyConsumedC'
-    GROUP BY device_id, date, hour
+        log.device_id,
+        log.event_time::date AS date,
+        EXTRACT(HOUR FROM log.event_time) AS hour,
+        MIN(log.value)::int AS min_value,
+        MAX(log.value)::int AS max_value
+    FROM "device-status-log" log, params
+    WHERE log.code = 'EnergyConsumedC'
+      AND (params.device_id IS NULL OR log.device_id = params.device_id)
+      AND (params.start_date IS NULL OR log.event_time::date >= params.start_date)
+      AND (params.end_date IS NULL OR log.event_time::date <= params.end_date)
+      AND (params.hour IS NULL OR EXTRACT(HOUR FROM log.event_time) = params.hour)
+    GROUP BY log.device_id, log.event_time::date, EXTRACT(HOUR FROM log.event_time)
 )
 
+-- Final Output with Optional kW Filter
 SELECT 
-    total_energy.device_id,
-    total_energy.date,
-    total_energy.hour,
-    (total_energy.max_value - total_energy.min_value) AS energy_consumed_kW,
-    (energy_phase_A.max_value - energy_phase_A.min_value) AS energy_consumed_A,
-    (energy_phase_B.max_value - energy_phase_B.min_value) AS energy_consumed_B,
-    (energy_phase_C.max_value - energy_phase_C.min_value) AS energy_consumed_C
-FROM total_energy
-JOIN energy_phase_A
-    ON total_energy.device_id = energy_phase_A.device_id
-   AND total_energy.date = energy_phase_A.date
-   AND total_energy.hour = energy_phase_A.hour
-JOIN energy_phase_B
-    ON total_energy.device_id = energy_phase_B.device_id
-   AND total_energy.date = energy_phase_B.date
-   AND total_energy.hour = energy_phase_B.hour
-JOIN energy_phase_C
-    ON total_energy.device_id = energy_phase_C.device_id
-   AND total_energy.date = energy_phase_C.date
-   AND total_energy.hour = energy_phase_C.hour
-ORDER BY total_energy.device_id, total_energy.date, total_energy.hour;
-
+    t.device_id,
+    t.date,
+    t.hour,
+    (t.max_value - t.min_value) AS energy_consumed_kW,
+    (a.max_value - a.min_value) AS energy_consumed_A,
+    (b.max_value - b.min_value) AS energy_consumed_B,
+    (c.max_value - c.min_value) AS energy_consumed_C
+FROM total_energy t
+JOIN energy_phase_A a ON t.device_id = a.device_id AND t.date = a.date AND t.hour = a.hour
+JOIN energy_phase_B b ON t.device_id = b.device_id AND t.date = b.date AND t.hour = b.hour
+JOIN energy_phase_C c ON t.device_id = c.device_id AND t.date = c.date AND t.hour = c.hour
+JOIN params p ON TRUE
+WHERE (p.min_kw IS NULL OR (t.max_value - t.min_value) >= p.min_kw)
+ORDER BY t.device_id, t.date, t.hour;

test.sql

@@ -0,0 +1,20 @@
+WITH ranked_dsl AS (
+    SELECT 
+        dsl.*, 
+        product.name AS product_name,
+        ROW_NUMBER() OVER (PARTITION BY product.name, dsl.code ORDER BY dsl.event_time) AS row_num
+    FROM 
+        "device-status-log" AS dsl
+    LEFT JOIN device ON device.uuid = dsl.device_id
+    LEFT JOIN product ON product.uuid = device.product_device_uuid
+)
+SELECT 
+    product_name,
+    ranked_dsl.*
+FROM 
+    ranked_dsl
+WHERE ranked_dsl.row_num = 1;
+
+
+SELECT * FROM SPACE LIMIT 100
+--test test