26 lines
853 B
MySQL
26 lines
853 B
MySQL
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-- 002_trips_viz_view.sql
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-- Thin metadata view: one row per trip, joined to its device's cost_centre.
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-- No path here — path is built per-trip inside the RPCs (003/004) so a
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-- naive SELECT * never triggers an ST_MakeLine across the whole hypertable.
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--
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-- 'Unassigned' bucket: NULL or whitespace-only cost_centre is coalesced.
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CREATE OR REPLACE VIEW public.trips_viz_v1 AS
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SELECT
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t.id AS trip_id,
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t.imei,
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d.vehicle_name,
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d.vehicle_number,
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COALESCE(NULLIF(TRIM(d.cost_centre), ''), 'Unassigned') AS cost_centre,
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t.start_time,
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t.end_time,
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t.distance_km,
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t.avg_speed_kmh,
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t.max_speed_kmh
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FROM tracksolid.trips t
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JOIN tracksolid.devices d ON d.imei = t.imei
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WHERE t.start_time IS NOT NULL
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AND t.end_time IS NOT NULL;
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GRANT SELECT ON public.trips_viz_v1 TO viz_anon;
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