From ecad3efb4975e2650ea4eaefd79c8815569a591d Mon Sep 17 00:00:00 2001
From: Jon Roeber <jon@roeber.dev>
Date: Thu, 18 Jan 2024 04:09:53 +0000
Subject: [PATCH] Update Dev Notes

---
 Dev-Notes.md | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/Dev-Notes.md b/Dev-Notes.md
index 6e5cd4d..a651c3f 100644
--- a/Dev-Notes.md
+++ b/Dev-Notes.md
@@ -1,16 +1,21 @@
 ## 20240117
 
-Example SQL query to convert Cayenne GPS location into PostGIS point:
+Example SQL query to convert Cayenne GPS location into PostGIS point, include RSSI, time, and gatewayId, and filter on gatewayId:
 
 ```sql
-WITH gps(alt, lat, lon) AS
+CREATE OR REPLACE VIEW qgis_friendly AS
+WITH data(gatewayId, time, alt, lat, lon, rssi) AS
   (SELECT
+    rx_info -> 0 ->> 'gatewayId',
+    time,
     CAST (object -> 'gpsLocation' -> '1' ->> 'altitude' AS FLOAT),
     CAST (object -> 'gpsLocation' -> '1' ->> 'latitude' AS FLOAT),
-    CAST (object -> 'gpsLocation' -> '1' ->> 'longitude' AS FLOAT)
+    CAST (object -> 'gpsLocation' -> '1' ->> 'longitude' AS FLOAT),
+    CAST (rx_info -> 0 ->> 'rssi' AS INTEGER)
   FROM event_up)
-SELECT ST_MakePoint(lon, lat, alt)
-FROM gps;
+SELECT gatewayId, time, ST_MakePoint(lon, lat, alt) AS location, rssi
+FROM data
+WHERE gatewayId = '8d269c95ddfe92eb';
 ```
 
 `CREATE EXTENSION postgis;` must be run on each database, not just the PostgreSQL instance.