tutorial: land height is "elevation", not "altitude"

bmomjian · bmomjian · commit b6b1d72247ee · 2021-03-10T20:25:18.000-05:00
This is a follow-on patch to 92c12e4. In that patch, we renamed "altitude" to "elevation" in the docs, based on these details: https://mapscaping.com/blogs/geo-candy/what-is-the-difference-between-elevation-relief-and-altitude This renames the tutorial SQL files to match the documentation. Reported-by: max1@inbox.ru Discussion: https://postgr.es/m/161512392887.1046.3137472627109459518@wrigleys.postgresql.org Backpatch-through: 9.6
diff --git a/src/tutorial/advanced.source b/src/tutorial/advanced.source
@@ -23,7 +23,7 @@
 CREATE TABLE cities (
 	name		text,
 	population	float8,
-	altitude	int		-- (in ft)
+	elevation	int		-- (in ft)
 );
 
 CREATE TABLE capitals (
@@ -42,17 +42,17 @@ SELECT * FROM cities;
 SELECT * FROM capitals;
 
 -- You can find all cities, including capitals, that
--- are located at an altitude of 500 ft or higher by:
+-- are located at an elevation of 500 ft or higher by:
 
-SELECT c.name, c.altitude
+SELECT c.name, c.elevation
 FROM cities c
-WHERE c.altitude > 500;
+WHERE c.elevation > 500;
 
 -- To scan rows of the parent table only, use ONLY:
 
-SELECT name, altitude
+SELECT name, elevation
 FROM ONLY cities
-WHERE altitude > 500;
+WHERE elevation > 500;
 
 
 -- clean up (you must remove the children first)
