airflow 0033_1_10_0_fix_sqlite_foreign_key 源码
airflow 0033_1_10_0_fix_sqlite_foreign_key 代码
文件路径：/airflow/migrations/versions/0033_1_10_0_fix_sqlite_foreign_key.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.
"""Fix Sqlite foreign key
Revision ID: 856955da8476
Revises: f23433877c24
Create Date: 2018-06-17 15:54:53.844230
"""
from __future__ import annotations
import sqlalchemy as sa
from alembic import op
# revision identifiers, used by Alembic.
revision = '856955da8476'
down_revision = 'f23433877c24'
branch_labels = None
depends_on = None
airflow_version = '1.10.0'
def upgrade():
"""Fix broken foreign-key constraint for existing SQLite DBs."""
conn = op.get_bind()
if conn.dialect.name == 'sqlite':
# Fix broken foreign-key constraint for existing SQLite DBs.
#
# Re-define tables and use copy_from to avoid reflection
# which would fail because referenced user table doesn't exist.
#
# Use batch_alter_table to support SQLite workaround.
chart_table = sa.Table(
'chart',
sa.MetaData(),
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('label', sa.String(length=200), nullable=True),
sa.Column('conn_id', sa.String(length=250), nullable=False),
sa.Column('user_id', sa.Integer(), nullable=True),
sa.Column('chart_type', sa.String(length=100), nullable=True),
sa.Column('sql_layout', sa.String(length=50), nullable=True),
sa.Column('sql', sa.Text(), nullable=True),
sa.Column('y_log_scale', sa.Boolean(), nullable=True),
sa.Column('show_datatable', sa.Boolean(), nullable=True),
sa.Column('show_sql', sa.Boolean(), nullable=True),
sa.Column('height', sa.Integer(), nullable=True),
sa.Column('default_params', sa.String(length=5000), nullable=True),
sa.Column('x_is_date', sa.Boolean(), nullable=True),
sa.Column('iteration_no', sa.Integer(), nullable=True),
sa.Column('last_modified', sa.DateTime(), nullable=True),
sa.PrimaryKeyConstraint('id'),
)
with op.batch_alter_table('chart', copy_from=chart_table) as batch_op:
batch_op.create_foreign_key('chart_user_id_fkey', 'users', ['user_id'], ['id'])
def downgrade():
# Downgrade would fail because the broken FK constraint can't be re-created.
pass
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
-
6、 golang
-
7、 openharmony