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--query_helper(R"(
create table author (
id integer primary key autoincrement not null,
first_name text unique not null,
last_name text
);
insert into author (first_name, last_name) values
('vinnie', 'falco'),
('richard', 'hodges'),
('ruben', 'perez'),
('peter', 'dimov')
;
create table library(
id integer primary key autoincrement,
name text unique,
author integer references author(id)
);
insert into library ("name", author) values
('beast', (select id from author where first_name = 'vinnie' and last_name = 'falco')),
('mysql', (select id from author where first_name = 'ruben' and last_name = 'perez')),
('mp11', (select id from author where first_name = 'peter' and last_name = 'dimov')),
('variant2', (select id from author where first_name = 'peter' and last_name = 'dimov'))
;
--)")
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