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							- """initial migration
 
- Revision ID: cd0e9c173a7f
 
- Revises: 
 
- Create Date: 2023-07-18 15:53:06.213349
 
- """
 
- from alembic import op
 
- import sqlalchemy as sa
 
- # revision identifiers, used by Alembic.
 
- revision = 'cd0e9c173a7f'
 
- down_revision = None
 
- branch_labels = None
 
- depends_on = None
 
- def upgrade():
 
-     # ### commands auto generated by Alembic - please adjust! ###
 
-     with op.batch_alter_table('link', schema=None) as batch_op:
 
-         batch_op.add_column(sa.Column('hit_count', sa.Integer(), nullable=True))
 
-         batch_op.add_column(sa.Column('owner_name', sa.String(length=255), nullable=True))
 
-         batch_op.create_unique_constraint(None, ['name'])
 
-     # ### end Alembic commands ###
 
- def downgrade():
 
-     # ### commands auto generated by Alembic - please adjust! ###
 
-     with op.batch_alter_table('link', schema=None) as batch_op:
 
-         batch_op.drop_constraint(None, type_='unique')
 
-         batch_op.drop_column('owner_name')
 
-         batch_op.drop_column('hit_count')
 
-     # ### end Alembic commands ###
 
 
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