Files
book_library_server/migrations/20260116092209_create_book_genres_table.sql
Bulat Kurbanov c60aa8685b Add DB migrations and run them on startup
Enable sqlx "migrate" feature and add SQL migrations to create the
database schema: pg_trgm extension, sources, genres, authors, sequences,
books, junction tables, annotations, and supporting indexes
2026-01-16 10:28:05 +01:00

14 lines
642 B
SQL

-- Create book_genres junction table
CREATE TABLE IF NOT EXISTS book_genres (
id SERIAL PRIMARY KEY,
genre INTEGER NOT NULL,
book INTEGER NOT NULL,
CONSTRAINT uc_book_genres_book_genre UNIQUE (book, genre),
CONSTRAINT fk_book_genres_genres_genre_id FOREIGN KEY (genre) REFERENCES genres(id) ON UPDATE CASCADE ON DELETE CASCADE,
CONSTRAINT fk_book_genres_books_book_id FOREIGN KEY (book) REFERENCES books(id) ON UPDATE CASCADE ON DELETE CASCADE
);
-- Create indexes for book_genres
CREATE INDEX IF NOT EXISTS book_genres_genre ON book_genres (genre);
CREATE INDEX IF NOT EXISTS book_genres_book ON book_genres (book);