superset 2016-10-05_11-30_b46fa1b0b39e_add_params_to_tables 源码
superset 2016-10-05_11-30_b46fa1b0b39e_add_params_to_tables 代码
文件路径：/superset/migrations/versions/2016-10-05_11-30_b46fa1b0b39e_add_params_to_tables.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.
"""Add json_metadata to the tables table.
Revision ID: b46fa1b0b39e
Revises: ef8843b41dac
Create Date: 2016-10-05 11:30:31.748238
"""
# revision identifiers, used by Alembic.
revision = "b46fa1b0b39e"
down_revision = "ef8843b41dac"
import logging
import sqlalchemy as sa
from alembic import op
def upgrade():
op.add_column("tables", sa.Column("params", sa.Text(), nullable=True))
def downgrade():
try:
op.drop_column("tables", "params")
except Exception as ex:
logging.warning(str(ex))
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