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Update Dev Notes

Jon Roeber 2024-01-18 06:12:57 +00:00
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Dev-Notes.md

@ -1,11 +1,12 @@
## 20240117
Example SQL query to create a `qgis_friendly` view that converts Cayenne GPS location into PostGIS point, includes RSSI, time, and gatewayId, and filters on gatewayId:
Example SQL query to create a `qgis_friendly` view that converts Cayenne GPS location into PostGIS point, includes unique ID, RSSI, time, and gatewayId, and filters on gatewayId:
```sql
CREATE OR REPLACE VIEW qgis_friendly AS
WITH data(gatewayId, time, alt, lat, lon, rssi) AS
WITH data(id, gatewayId, time, alt, lat, lon, rssi) AS
(SELECT
deduplication_id,
rx_info -> 0 ->> 'gatewayId',
time,
CAST (object -> 'gpsLocation' -> '1' ->> 'altitude' AS FLOAT),
@ -14,6 +15,7 @@ WITH data(gatewayId, time, alt, lat, lon, rssi) AS
CAST (rx_info -> 0 ->> 'rssi' AS INTEGER)
FROM event_up)
SELECT
id,
gatewayId,
time,
ST_SetSRID(ST_MakePoint(lon, lat, alt), 4326) AS location,