airflow 0075_2_0_0_add_description_field_to_connection 源码
airflow 0075_2_0_0_add_description_field_to_connection 代码
文件路径：/airflow/migrations/versions/0075_2_0_0_add_description_field_to_connection.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 description field to ``connection`` table
Revision ID: 61ec73d9401f
Revises: 2c6edca13270
Create Date: 2020-09-10 14:56:30.279248
"""
from __future__ import annotations
import sqlalchemy as sa
from alembic import op
# revision identifiers, used by Alembic.
revision = '61ec73d9401f'
down_revision = '2c6edca13270'
branch_labels = None
depends_on = None
airflow_version = '2.0.0'
def upgrade():
"""Apply Add description field to ``connection`` table"""
conn = op.get_bind()
with op.batch_alter_table('connection') as batch_op:
if conn.dialect.name == "mysql":
# Handles case where on mysql with utf8mb4 this would exceed the size of row
# We have to set text type in this migration even if originally it was string
# This is permanently fixed in the follow-up migration 64a7d6477aae
batch_op.add_column(sa.Column('description', sa.Text(length=5000), nullable=True))
else:
batch_op.add_column(sa.Column('description', sa.String(length=5000), nullable=True))
def downgrade():
"""Unapply Add description field to ``connection`` table"""
with op.batch_alter_table('connection', schema=None) as batch_op:
batch_op.drop_column('description')
相关信息
相关文章
airflow 0001_1_5_0_current_schema 源码
airflow 0002_1_5_0_create_is_encrypted 源码
airflow 0003_1_5_0_for_compatibility 源码
airflow 0004_1_5_0_more_logging_into_task_isntance 源码
airflow 0005_1_5_2_job_id_indices 源码
airflow 0006_1_6_0_adding_extra_to_log 源码
airflow 0007_1_6_0_add_dagrun 源码
airflow 0008_1_6_0_task_duration 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦