airflow 0032_1_10_0_fix_mysql_not_null_constraint 源码
airflow 0032_1_10_0_fix_mysql_not_null_constraint 代码
文件路径：/airflow/migrations/versions/0032_1_10_0_fix_mysql_not_null_constraint.py
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# to you under the Apache License, Version 2.0 (the
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"""Fix MySQL not null constraint
Revision ID: f23433877c24
Revises: 05f30312d566
Create Date: 2018-06-17 10:16:31.412131
"""
from __future__ import annotations
from alembic import op
from sqlalchemy.dialects import mysql
# revision identifiers, used by Alembic.
revision = 'f23433877c24'
down_revision = '05f30312d566'
branch_labels = None
depends_on = None
airflow_version = '1.10.0'
def upgrade():
conn = op.get_bind()
if conn.dialect.name == 'mysql':
conn.execute("SET time_zone = '+00:00'")
op.alter_column('task_fail', 'execution_date', existing_type=mysql.TIMESTAMP(fsp=6), nullable=False)
op.alter_column('xcom', 'execution_date', existing_type=mysql.TIMESTAMP(fsp=6), nullable=False)
op.alter_column('xcom', 'timestamp', existing_type=mysql.TIMESTAMP(fsp=6), nullable=False)
def downgrade():
conn = op.get_bind()
if conn.dialect.name == 'mysql':
conn.execute("SET time_zone = '+00:00'")
op.alter_column('xcom', 'timestamp', existing_type=mysql.TIMESTAMP(fsp=6), nullable=True)
op.alter_column('xcom', 'execution_date', existing_type=mysql.TIMESTAMP(fsp=6), nullable=True)
op.alter_column('task_fail', 'execution_date', existing_type=mysql.TIMESTAMP(fsp=6), nullable=True)
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