"""add_river_cross_section

Revision ID: e484105cc893
Revises: c4c4ef058b7d
Create Date: 2025-07-12 01:34:36.419198

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'e484105cc893'
down_revision = 'c4c4ef058b7d'
branch_labels = None
depends_on = None


def upgrade():
    """升级数据库到当前版本"""
    # ### commands auto generated by Alembic - please adjust! ###
    pass
    # ### end Alembic commands ###


def downgrade():
    """将数据库降级到上一版本"""
    # ### commands auto generated by Alembic - please adjust! ###
    pass
    # ### end Alembic commands ###