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Current Schema

CREATE TABLE textbook_vocabularies  (
  id          INTEGER PRIMARY KEY AUTOINCREMENT,
  lesson_id   INTEGER NOT NULL REFERENCES textbook_lessons(id),
  word        TEXT NOT NULL,
  -- 字/词
    pinyin      TEXT,
  -- 拼音
    word_type   TEXT DEFAULT 'character',
  -- character=生字,
  word=词语
    stroke_count INTEGER,
  -- 笔画数
    radical     TEXT,
  -- 部首
    meaning     TEXT,
  -- 释义(可选)
    is_keyword  INTEGER DEFAULT 0,
  -- 是否重点词语
    created_at  DATETIME DEFAULT (datetime('now'))
)