38 lines
1011 B
Python
38 lines
1011 B
Python
"""baseline existing business tables for fresh PostgreSQL databases
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Revision ID: 208b0c5d302a
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Revises: 20260814_01
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Create Date: 2026-08-14 18:14:07.548098
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"""
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from typing import Sequence, Union
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from alembic import op
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from app.db import Base
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from app import models # noqa: F401
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revision: str = '208b0c5d302a'
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down_revision: Union[str, Sequence[str], None] = '20260814_01'
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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bind = op.get_bind()
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# 线上库在引入 Alembic 前已有这些表，checkfirst 保证迁移无损；空库则完整创建。
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for table_name in (
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"candles",
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"backtest_runs",
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"stock_basic",
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"market_daily",
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"daily_snapshot",
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"trade_calendar",
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):
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Base.metadata.tables[table_name].create(bind=bind, checkfirst=True)
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def downgrade() -> None:
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# 这些表可能包含迁移接管前的数据，禁止自动降级删除。
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pass
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