26 lines
1.2 KiB
PL/PgSQL
26 lines
1.2 KiB
PL/PgSQL
DROP FUNCTION IF EXISTS layer_obs_events;
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CREATE OR REPLACE FUNCTION layer_obs_events(bbox geometry, zoom_level int, user_id integer, min_time timestamp, max_time timestamp)
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RETURNS TABLE(event_id bigint, geometry geometry, distance_overtaker float, distance_stationary float, direction int, course float, speed float, time_stamp timestamp, zone zone_type, way_id bigint) AS $$
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SELECT
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overtaking_event.id::bigint as event_id,
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overtaking_event.geometry as geometry,
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distance_overtaker,
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distance_stationary,
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(case when direction_reversed then -1 else 1 end)::int as direction,
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course,
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speed,
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time as time_stamp,
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CASE WHEN road.zone IS NULL THEN 'urban' else road.zone END as zone,
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overtaking_event.way_id::bigint as way_id
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FROM overtaking_event
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FULL OUTER JOIN road ON road.way_id = overtaking_event.way_id
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JOIN track on track.id = overtaking_event.track_id
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WHERE overtaking_event.geometry && bbox
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AND zoom_level >= 8
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AND (user_id is NULL OR user_id = track.author_id)
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AND time BETWEEN COALESCE(min_time, '1900-01-01'::timestamp) AND COALESCE(max_time, '2100-01-01'::timestamp);
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$$ LANGUAGE SQL IMMUTABLE;
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