airflow 0027_1_10_0_add_time_zone_awareness 源码
airflow 0027_1_10_0_add_time_zone_awareness 代码
文件路径:/airflow/migrations/versions/0027_1_10_0_add_time_zone_awareness.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 time zone awareness
Revision ID: 0e2a74e0fc9f
Revises: d2ae31099d61
Create Date: 2017-11-10 22:22:31.326152
"""
from __future__ import annotations
import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import mysql
# revision identifiers, used by Alembic.
revision = "0e2a74e0fc9f"
down_revision = "d2ae31099d61"
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'")
cur = conn.execute("SELECT @@explicit_defaults_for_timestamp")
res = cur.fetchall()
if res[0][0] == 0:
raise Exception("Global variable explicit_defaults_for_timestamp needs to be on (1) for mysql")
op.alter_column(
table_name="chart",
column_name="last_modified",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(
table_name="dag",
column_name="last_scheduler_run",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(table_name="dag", column_name="last_pickled", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(table_name="dag", column_name="last_expired", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(
table_name="dag_pickle",
column_name="created_dttm",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(
table_name="dag_run",
column_name="execution_date",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(table_name="dag_run", column_name="start_date", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(table_name="dag_run", column_name="end_date", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(
table_name="import_error",
column_name="timestamp",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(table_name="job", column_name="start_date", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(table_name="job", column_name="end_date", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(
table_name="job",
column_name="latest_heartbeat",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(table_name="log", column_name="dttm", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(table_name="log", column_name="execution_date", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(
table_name="sla_miss",
column_name="execution_date",
type_=mysql.TIMESTAMP(fsp=6),
nullable=False,
)
op.alter_column(table_name="sla_miss", column_name="timestamp", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(
table_name="task_fail",
column_name="execution_date",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(
table_name="task_fail",
column_name="start_date",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(table_name="task_fail", column_name="end_date", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(
table_name="task_instance",
column_name="execution_date",
type_=mysql.TIMESTAMP(fsp=6),
nullable=False,
)
op.alter_column(
table_name="task_instance",
column_name="start_date",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(
table_name="task_instance",
column_name="end_date",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(
table_name="task_instance",
column_name="queued_dttm",
type_=mysql.TIMESTAMP(fsp=6),
)
op.alter_column(table_name="xcom", column_name="timestamp", type_=mysql.TIMESTAMP(fsp=6))
op.alter_column(
table_name="xcom",
column_name="execution_date",
type_=mysql.TIMESTAMP(fsp=6),
)
else:
# sqlite and mssql datetime are fine as is. Therefore, not converting
if conn.dialect.name in ("sqlite", "mssql"):
return
# we try to be database agnostic, but not every db (e.g. sqlserver)
# supports per session time zones
if conn.dialect.name == "postgresql":
conn.execute("set timezone=UTC")
op.alter_column(
table_name="chart",
column_name="last_modified",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="dag",
column_name="last_scheduler_run",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="dag",
column_name="last_pickled",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="dag",
column_name="last_expired",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="dag_pickle",
column_name="created_dttm",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="dag_run",
column_name="execution_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="dag_run",
column_name="start_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="dag_run",
column_name="end_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="import_error",
column_name="timestamp",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="job",
column_name="start_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(table_name="job", column_name="end_date", type_=sa.TIMESTAMP(timezone=True))
op.alter_column(
table_name="job",
column_name="latest_heartbeat",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(table_name="log", column_name="dttm", type_=sa.TIMESTAMP(timezone=True))
op.alter_column(
table_name="log",
column_name="execution_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="sla_miss",
column_name="execution_date",
type_=sa.TIMESTAMP(timezone=True),
nullable=False,
)
op.alter_column(
table_name="sla_miss",
column_name="timestamp",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="task_fail",
column_name="execution_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="task_fail",
column_name="start_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="task_fail",
column_name="end_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="task_instance",
column_name="execution_date",
type_=sa.TIMESTAMP(timezone=True),
nullable=False,
)
op.alter_column(
table_name="task_instance",
column_name="start_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="task_instance",
column_name="end_date",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="task_instance",
column_name="queued_dttm",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="xcom",
column_name="timestamp",
type_=sa.TIMESTAMP(timezone=True),
)
op.alter_column(
table_name="xcom",
column_name="execution_date",
type_=sa.TIMESTAMP(timezone=True),
)
def downgrade():
conn = op.get_bind()
if conn.dialect.name == "mysql":
conn.execute("SET time_zone = '+00:00'")
op.alter_column(table_name="chart", column_name="last_modified", type_=mysql.DATETIME(fsp=6))
op.alter_column(
table_name="dag",
column_name="last_scheduler_run",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(table_name="dag", column_name="last_pickled", type_=mysql.DATETIME(fsp=6))
op.alter_column(table_name="dag", column_name="last_expired", type_=mysql.DATETIME(fsp=6))
op.alter_column(
table_name="dag_pickle",
column_name="created_dttm",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(
table_name="dag_run",
column_name="execution_date",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(table_name="dag_run", column_name="start_date", type_=mysql.DATETIME(fsp=6))
op.alter_column(table_name="dag_run", column_name="end_date", type_=mysql.DATETIME(fsp=6))
op.alter_column(
table_name="import_error",
column_name="timestamp",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(table_name="job", column_name="start_date", type_=mysql.DATETIME(fsp=6))
op.alter_column(table_name="job", column_name="end_date", type_=mysql.DATETIME(fsp=6))
op.alter_column(
table_name="job",
column_name="latest_heartbeat",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(table_name="log", column_name="dttm", type_=mysql.DATETIME(fsp=6))
op.alter_column(table_name="log", column_name="execution_date", type_=mysql.DATETIME(fsp=6))
op.alter_column(
table_name="sla_miss",
column_name="execution_date",
type_=mysql.DATETIME(fsp=6),
nullable=False,
)
op.alter_column(table_name="sla_miss", column_name="timestamp", type_=mysql.DATETIME(fsp=6))
op.alter_column(
table_name="task_fail",
column_name="execution_date",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(
table_name="task_fail",
column_name="start_date",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(table_name="task_fail", column_name="end_date", type_=mysql.DATETIME(fsp=6))
op.alter_column(
table_name="task_instance",
column_name="execution_date",
type_=mysql.DATETIME(fsp=6),
nullable=False,
)
op.alter_column(
table_name="task_instance",
column_name="start_date",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(
table_name="task_instance",
column_name="end_date",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(
table_name="task_instance",
column_name="queued_dttm",
type_=mysql.DATETIME(fsp=6),
)
op.alter_column(table_name="xcom", column_name="timestamp", type_=mysql.DATETIME(fsp=6))
op.alter_column(table_name="xcom", column_name="execution_date", type_=mysql.DATETIME(fsp=6))
else:
if conn.dialect.name in ("sqlite", "mssql"):
return
# we try to be database agnostic, but not every db (e.g. sqlserver)
# supports per session time zones
if conn.dialect.name == "postgresql":
conn.execute("set timezone=UTC")
op.alter_column(table_name="chart", column_name="last_modified", type_=sa.DateTime())
op.alter_column(table_name="dag", column_name="last_scheduler_run", type_=sa.DateTime())
op.alter_column(table_name="dag", column_name="last_pickled", type_=sa.DateTime())
op.alter_column(table_name="dag", column_name="last_expired", type_=sa.DateTime())
op.alter_column(table_name="dag_pickle", column_name="created_dttm", type_=sa.DateTime())
op.alter_column(table_name="dag_run", column_name="execution_date", type_=sa.DateTime())
op.alter_column(table_name="dag_run", column_name="start_date", type_=sa.DateTime())
op.alter_column(table_name="dag_run", column_name="end_date", type_=sa.DateTime())
op.alter_column(table_name="import_error", column_name="timestamp", type_=sa.DateTime())
op.alter_column(table_name="job", column_name="start_date", type_=sa.DateTime())
op.alter_column(table_name="job", column_name="end_date", type_=sa.DateTime())
op.alter_column(table_name="job", column_name="latest_heartbeat", type_=sa.DateTime())
op.alter_column(table_name="log", column_name="dttm", type_=sa.DateTime())
op.alter_column(table_name="log", column_name="execution_date", type_=sa.DateTime())
op.alter_column(
table_name="sla_miss",
column_name="execution_date",
type_=sa.DateTime(),
nullable=False,
)
op.alter_column(table_name="sla_miss", column_name="timestamp", type_=sa.DateTime())
op.alter_column(table_name="task_fail", column_name="execution_date", type_=sa.DateTime())
op.alter_column(table_name="task_fail", column_name="start_date", type_=sa.DateTime())
op.alter_column(table_name="task_fail", column_name="end_date", type_=sa.DateTime())
op.alter_column(
table_name="task_instance",
column_name="execution_date",
type_=sa.DateTime(),
nullable=False,
)
op.alter_column(table_name="task_instance", column_name="start_date", type_=sa.DateTime())
op.alter_column(table_name="task_instance", column_name="end_date", type_=sa.DateTime())
op.alter_column(table_name="task_instance", column_name="queued_dttm", type_=sa.DateTime())
op.alter_column(table_name="xcom", column_name="timestamp", type_=sa.DateTime())
op.alter_column(table_name="xcom", column_name="execution_date", type_=sa.DateTime())
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