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feat(db): add first_byte_time_ms column to usage table
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@@ -0,0 +1,28 @@
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"""add first_byte_time_ms to usage table
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Revision ID: 180e63a9c83a
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Revises: e9b3d63f0cbf
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Create Date: 2025-12-15 17:07:44.631032+00:00
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"""
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision = '180e63a9c83a'
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down_revision = 'e9b3d63f0cbf'
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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"""应用迁移:升级到新版本"""
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# 添加首字时间字段到 usage 表
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op.add_column('usage', sa.Column('first_byte_time_ms', sa.Integer(), nullable=True))
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def downgrade() -> None:
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"""回滚迁移:降级到旧版本"""
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# 删除首字时间字段
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op.drop_column('usage', 'first_byte_time_ms')
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@@ -307,7 +307,8 @@ class Usage(Base):
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is_stream = Column(Boolean, default=False) # 是否为流式请求
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status_code = Column(Integer)
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error_message = Column(Text, nullable=True)
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response_time_ms = Column(Integer) # 响应时间(毫秒)
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response_time_ms = Column(Integer) # 总响应时间(毫秒)
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first_byte_time_ms = Column(Integer, nullable=True) # 首字时间/TTFB(毫秒)
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# 请求状态追踪
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# pending: 请求开始处理中
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