airflow 0055_1_10_11_add_precision_to_execution_date_in_mysql 源码
airflow 0055_1_10_11_add_precision_to_execution_date_in_mysql 代码
文件路径：/airflow/migrations/versions/0055_1_10_11_add_precision_to_execution_date_in_mysql.py
#
# Licensed to the Apache Software Foundation (ASF) under one
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# 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
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#
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"""Add Precision to ``execution_date`` in ``RenderedTaskInstanceFields`` table
Revision ID: a66efa278eea
Revises: 952da73b5eff
Create Date: 2020-06-16 21:44:02.883132
"""
from __future__ import annotations
from alembic import op
from sqlalchemy.dialects import mysql
# revision identifiers, used by Alembic.
revision = 'a66efa278eea'
down_revision = '952da73b5eff'
branch_labels = None
depends_on = None
airflow_version = '1.10.11'
TABLE_NAME = 'rendered_task_instance_fields'
COLUMN_NAME = 'execution_date'
def upgrade():
"""Add Precision to ``execution_date`` in ``RenderedTaskInstanceFields`` table for MySQL"""
conn = op.get_bind()
if conn.dialect.name == "mysql":
op.alter_column(
table_name=TABLE_NAME, column_name=COLUMN_NAME, type_=mysql.TIMESTAMP(fsp=6), nullable=False
)
def downgrade():
"""Unapply Add Precision to ``execution_date`` in ``RenderedTaskInstanceFields`` table"""
conn = op.get_bind()
if conn.dialect.name == "mysql":
op.alter_column(
table_name=TABLE_NAME, column_name=COLUMN_NAME, type_=mysql.TIMESTAMP(), nullable=False
)
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