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tutorial: land height is "elevation", not "altitude"
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
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parent
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@ -23,7 +23,7 @@
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CREATE TABLE cities (
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CREATE TABLE cities (
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name text,
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name text,
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population float8,
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population float8,
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altitude int -- (in ft)
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elevation int -- (in ft)
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);
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);
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CREATE TABLE capitals (
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CREATE TABLE capitals (
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@ -42,17 +42,17 @@ SELECT * FROM cities;
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SELECT * FROM capitals;
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SELECT * FROM capitals;
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-- You can find all cities, including capitals, that
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-- You can find all cities, including capitals, that
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-- are located at an altitude of 500 ft or higher by:
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-- are located at an elevation of 500 ft or higher by:
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SELECT c.name, c.altitude
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SELECT c.name, c.elevation
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FROM cities c
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FROM cities c
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WHERE c.altitude > 500;
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WHERE c.elevation > 500;
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-- To scan rows of the parent table only, use ONLY:
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-- To scan rows of the parent table only, use ONLY:
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SELECT name, altitude
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SELECT name, elevation
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FROM ONLY cities
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FROM ONLY cities
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WHERE altitude > 500;
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WHERE elevation > 500;
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-- clean up (you must remove the children first)
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-- clean up (you must remove the children first)
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