11 lines
442 B
SQL
11 lines
442 B
SQL
CREATE TABLE IF NOT EXISTS followed_users (
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follower_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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followed_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (follower_id, followed_id),
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CHECK (follower_id <> followed_id)
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);
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CREATE INDEX IF NOT EXISTS idx_followed_users_followed
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ON followed_users(followed_id, follower_id);
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