superset/migrations/versions/2019-06-05_11-35_b4a38aa87893_deprecate_database_expression.py
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"""deprecate database expression
Revision ID: b4a38aa87893
Revises: ab8c66efdd01
Create Date: 2019-06-05 11:35:16.222519
"""
# revision identifiers, used by Alembic.
revision = "b4a38aa87893"
down_revision = "ab8c66efdd01"
import sqlalchemy as sa # noqa: E402
from alembic import op # noqa: E402
def upgrade():
with op.batch_alter_table("table_columns") as batch_op:
batch_op.drop_column("database_expression")
def downgrade():
with op.batch_alter_table("table_columns") as batch_op:
batch_op.add_column(sa.Column("database_expression", sa.String(255)))