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1CREATE TABLE IF NOT EXISTS lesson_state (
2 user_id TEXT NOT NULL,
3 topic_id TEXT NOT NULL,
4 lesson_id TEXT NOT NULL,
5 current_index INTEGER NOT NULL DEFAULT 0,
6 hearts INTEGER NOT NULL DEFAULT 5,
7 correct_count INTEGER NOT NULL DEFAULT 0,
8 updated_at TEXT NOT NULL,
9 PRIMARY KEY (user_id, topic_id, lesson_id),
10 FOREIGN KEY (user_id) REFERENCES users(id)
11);