airbnb/caravel

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#   http://www.apache.org/licenses/LICENSE-2.0
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"""sqla_descr

Revision ID: 55179c7f25c7
Revises: 315b3f4da9b0
Create Date: 2015-12-13 08:38:43.704145

"""

# revision identifiers, used by Alembic.
revision = "55179c7f25c7"
down_revision = "315b3f4da9b0"

import sqlalchemy as sa  # noqa: E402
from alembic import op  # noqa: E402


def upgrade():
    op.add_column("tables", sa.Column("description", sa.Text(), nullable=True))


def downgrade():
    op.drop_column("tables", "description")