Результаты вызова функции books_by_subject()

Листинг 11.41. Результаты вызова функции books_by_subject()

booktown=# SELECT books_by_subject('al1');

books_by_subject

Arts:

Dynamic Anatomy

Business:

Children's Books:

The Cat in the Hat

Bartholomew and the Oobleck

Franklin in the Dark

Goodnight Moon

[...]

Science:

Science Fiction:

Dune

2001: A Space Odyssey

(1 row)

booktown=# SELECT books_by_subject('Computers');

books by_subject

Computers:

Learning Python

Perl Cookbook

Practical PostgreSQL

Programming Python

(1 row)