superset 2020-11-15_16-08_a8173232b786_add_path_to_logs 源码
superset 2020-11-15_16-08_a8173232b786_add_path_to_logs 代码
文件路径：/superset/migrations/versions/2020-11-15_16-08_a8173232b786_add_path_to_logs.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 path to logs
Revision ID: a8173232b786
Revises: 49b5a32daba5
Create Date: 2020-11-15 16:08:24.580764
"""
# revision identifiers, used by Alembic.
revision = "a8173232b786"
down_revision = "49b5a32daba5"
import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import mysql
from superset.migrations.shared import utils
def upgrade():
# This migration was modified post hoc to avoid locking the large logs table
# during migrations.
pass
def downgrade():
with op.batch_alter_table("logs") as batch_op:
if utils.table_has_column("logs", "path"):
batch_op.drop_column("path")
if utils.table_has_column("logs", "path_no_int"):
batch_op.drop_column("path_no_int")
if utils.table_has_column("logs", "ref"):
batch_op.drop_column("ref")
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