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presence

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This commit is contained in:
Dona Maria Absi
2025-03-19 08:52:49 +03:00
parent ea81f864aa
commit 98f8ca830c
1 changed files with 21 additions and 9 deletions
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30
fact_daily_space_presence_duration/fact_daily_space_presence_duration.sql
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@ -39,7 +39,7 @@ WITH start_date AS (
WHERE prev_none_flag = 1
)
, overlaping_none_presence AS (
, overlaping_none_presence AS ( --assuming only 2 devices
SELECT
a.space_id,
GREATEST(a.start_time, b.start_time) AS overlap_start,
@ -53,19 +53,31 @@ WITH start_date AS (
AND b.start_time < a.end_time
)
, expanded_overlapping_none_presence AS (
SELECT distinct
o.space_id,
gs.date AS missing_date,
CASE
WHEN DATE(o.overlap_start) <> DATE(o.overlap_end) THEN 86400
ELSE EXTRACT(EPOCH FROM (LEAST(o.overlap_end, gs.date + INTERVAL '1 day') - GREATEST(o.overlap_start, gs.date)))
END AS missing_seconds
FROM overlaping_none_presence o
CROSS JOIN LATERAL generate_series(DATE(o.overlap_start), DATE(o.overlap_end) - INTERVAL '1 day', '1 day') AS gs(date)
)
, daily_total_occupancy AS (
SELECT
t.space_id,
DATE(t.start_time) AS occupancy_date,
86,400 - COALESCE(SUM(o.overlap_duration_seconds), 0) AS total_occupancy_seconds
GREATEST(0, LEAST(86400, SUM(EXTRACT(EPOCH FROM (t.end_time - t.start_time))) -
COALESCE(SUM(e.missing_seconds), 0))) AS total_presence_seconds
FROM time_intervals t
LEFT JOIN overlaping_none_presence o
ON t.space_id = o.space_id
AND t.start_time < o.overlap_end
AND o.overlap_start < t.end_time
LEFT JOIN expanded_overlapping_none_presence e
ON t.space_id = e.space_id
AND DATE(t.start_time) = e.missing_date
GROUP BY t.space_id, DATE(t.start_time)
)
SELECT * FROM daily_total_occupancy
SELECT * FROM daily_total_occupancy;