JOINS example

PG Doc comments form <[email protected]>
Newsgroups gmane.comp.db.postgresql.devel.documentation
Message-ID <[email protected]> 
The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/11/tutorial-join.html
Description:

The data is incomplete for results on all possible joins, given as an
exercise.

Help the student by introducing a temporary fake city, with no matching
weather data.
With that the left, right and full join will truly show a student different
results.

Thanks, francis
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