selfrelease
78 lines
3.0 KiB
SQL
78 lines
3.0 KiB
SQL
-- 中国机车图鉴 · 数据底座 schema（SQLite，设计为可移植到 PostgreSQL）
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-- 对应任务 T-1.1。三层模型：Category -> Model -> Unit，加 Model 关系表。
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PRAGMA foreign_keys = ON;
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CREATE TABLE IF NOT EXISTS category (
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id INTEGER PRIMARY KEY,
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name TEXT NOT NULL,
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subcat TEXT DEFAULT '',
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slug TEXT,
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UNIQUE(name, subcat)
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);
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CREATE TABLE IF NOT EXISTS model (
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id INTEGER PRIMARY KEY,
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category_id INTEGER NOT NULL REFERENCES category(id),
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series TEXT DEFAULT '',
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model_code TEXT NOT NULL,
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full_name TEXT DEFAULT '',
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aliases TEXT DEFAULT '',
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manufacturer TEXT DEFAULT '',
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country TEXT DEFAULT '中国',
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country_type TEXT DEFAULT '国产', -- 国产/进口/引进仿制/中外合资/未知
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first_year INTEGER,
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last_year INTEGER,
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status TEXT DEFAULT '未知',
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usage TEXT DEFAULT '',
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production_count TEXT DEFAULT '',
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axle_arrangement TEXT DEFAULT '',
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drive TEXT DEFAULT '',
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efficiency TEXT DEFAULT '',
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-- 数值 + 单位（拆分存储）
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length_value REAL, length_unit TEXT,
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width_value REAL, width_unit TEXT,
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height_value REAL, height_unit TEXT,
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wheelbase_value REAL, wheelbase_unit TEXT,
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weight_value REAL, weight_unit TEXT,
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axle_load_value REAL, axle_load_unit TEXT,
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load_value REAL, load_unit TEXT,
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tractive_start_value REAL, tractive_start_unit TEXT,
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tractive_cont_value REAL, tractive_cont_unit TEXT,
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power_kw_value REAL, power_kw_unit TEXT,
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max_speed_value REAL, max_speed_unit TEXT,
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capacity_value REAL, capacity_unit TEXT,
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raw_json TEXT, -- 原始清洗后所有列，保真不丢字段
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source_sheet TEXT
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);
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CREATE INDEX IF NOT EXISTS idx_model_category ON model(category_id);
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CREATE INDEX IF NOT EXISTS idx_model_code ON model(model_code);
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CREATE INDEX IF NOT EXISTS idx_model_first_year ON model(first_year);
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CREATE TABLE IF NOT EXISTS unit (
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id INTEGER PRIMARY KEY,
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category_id INTEGER NOT NULL REFERENCES category(id),
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model_id INTEGER REFERENCES model(id),
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car_number TEXT,
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model_name TEXT DEFAULT '',
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function TEXT DEFAULT '',
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depot TEXT DEFAULT '',
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livery TEXT DEFAULT '',
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status TEXT DEFAULT '未知',
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location TEXT DEFAULT '',
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note TEXT DEFAULT '',
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raw_json TEXT,
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source_sheet TEXT
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);
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CREATE INDEX IF NOT EXISTS idx_unit_category ON unit(category_id);
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CREATE INDEX IF NOT EXISTS idx_unit_car_number ON unit(car_number);
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-- 车型族谱关系（父型号/衍生/国外原型），本期预留，后续填充
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CREATE TABLE IF NOT EXISTS model_relation (
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id INTEGER PRIMARY KEY,
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from_model_id INTEGER NOT NULL REFERENCES model(id),
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to_model_id INTEGER NOT NULL REFERENCES model(id),
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rel_type TEXT NOT NULL, -- parent / derivative / prototype
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UNIQUE(from_model_id, to_model_id, rel_type)
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);
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