superset 2016-01-17_22-00_7dbf98566af7_slice_description 源码
superset 2016-01-17_22-00_7dbf98566af7_slice_description 代码
文件路径：/superset/migrations/versions/2016-01-17_22-00_7dbf98566af7_slice_description.py
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
"""empty message
Revision ID: 7dbf98566af7
Revises: 8e80a26a31db
Create Date: 2016-01-17 22:00:23.640788
"""
# revision identifiers, used by Alembic.
revision = "7dbf98566af7"
down_revision = "8e80a26a31db"
import sqlalchemy as sa
from alembic import op
def upgrade():
op.add_column("slices", sa.Column("description", sa.Text(), nullable=True))
def downgrade():
op.drop_column("slices", "description")
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