44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
#!/usr/bin/env python3
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"""
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数据库迁移脚本：将采购订单的预计到货日期字段从 TIMESTAMP 改为 DATE 类型
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"""
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import asyncio
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import sys
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from pathlib import Path
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project_root = Path(__file__).parent
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sys.path.insert(0, str(project_root))
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sys.path.insert(0, str(project_root / "src"))
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from sqlalchemy.ext.asyncio import create_async_engine
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from sqlalchemy import text
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from config.settings import settings
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async def migrate():
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"""执行数据库迁移"""
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if not settings.DATABASE_URL:
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print("错误：未配置数据库连接")
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return
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engine = create_async_engine(
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settings.DATABASE_URL,
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echo=True
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)
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async with engine.begin() as conn:
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# 修改日期字段类型
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alter_sql = """
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ALTER TABLE purchase_orders
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ALTER COLUMN expected_date TYPE DATE
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"""
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await conn.execute(text(alter_sql))
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print("成功将采购订单的预计到货日期字段类型改为 DATE")
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await engine.dispose()
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print("迁移完成")
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if __name__ == "__main__":
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asyncio.run(migrate())
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