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

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This is a follow-on patch to 92c12e46d5.  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
This commit is contained in:
Bruce Momjian 2021-03-10 20:25:19 -05:00
parent 5f8727f5a6
commit 2950ff32f3
1 changed files with 6 additions and 6 deletions
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12
src/tutorial/advanced.source
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@ -23,7 +23,7 @@
CREATE TABLE cities ( CREATE TABLE cities (
name text, name text,
population float8, population float8,
altitude int -- (in ft) elevation int -- (in ft)
); );
CREATE TABLE capitals ( CREATE TABLE capitals (
@ -42,17 +42,17 @@ SELECT * FROM cities;
SELECT * FROM capitals; SELECT * FROM capitals;
-- You can find all cities, including capitals, that -- 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 FROM cities c
WHERE c.altitude > 500; WHERE c.elevation > 500;
-- To scan rows of the parent table only, use ONLY: -- To scan rows of the parent table only, use ONLY:
SELECT name, altitude SELECT name, elevation
FROM ONLY cities FROM ONLY cities
WHERE altitude > 500; WHERE elevation > 500;
-- clean up (you must remove the children first) -- clean up (you must remove the children first)