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"""add updated_date column to article table
Revision ID: 3f83bfe93fc
Revises: 25ca960a207
Create Date: 2016-02-12 21:51:40.868539
"""
# revision identifiers, used by Alembic.
import sqlalchemy as sa
from alembic import op
revision = "3f83bfe93fc"
down_revision = "25ca960a207"
def upgrade():
op.add_column("article", sa.Column("updated_date", sa.DateTime(), nullable=True))
def downgrade():
op.drop_column("article", "updated_date")
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