airflow redshift_sql 源码
airflow redshift_sql 代码
文件路径：/airflow/providers/amazon/aws/operators/redshift_sql.py
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# to you under the Apache License, Version 2.0 (the
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#
# http://www.apache.org/licenses/LICENSE-2.0
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from __future__ import annotations
import warnings
from typing import Sequence
from airflow.providers.common.sql.operators.sql import SQLExecuteQueryOperator
from airflow.www import utils as wwwutils
class RedshiftSQLOperator(SQLExecuteQueryOperator):
"""
Executes SQL Statements against an Amazon Redshift cluster
.. seealso::
For more information on how to use this operator, take a look at the guide:
:ref:`howto/operator:RedshiftSQLOperator`
:param sql: the SQL code to be executed as a single string, or
a list of str (sql statements), or a reference to a template file.
Template references are recognized by str ending in '.sql'
:param redshift_conn_id: reference to
:ref:`Amazon Redshift connection id<howto/connection:redshift>`
:param parameters: (optional) the parameters to render the SQL query with.
:param autocommit: if True, each command is automatically committed.
(default value: False)
"""
template_fields: Sequence[str] = (
'sql',
'redshift_conn_id',
)
template_ext: Sequence[str] = ('.sql',)
# TODO: Remove renderer check when the provider has an Airflow 2.3+ requirement.
template_fields_renderers = {
"sql": "postgresql" if "postgresql" in wwwutils.get_attr_renderer() else "sql"
}
def __init__(self, *, redshift_conn_id: str = 'redshift_default', **kwargs) -> None:
super().__init__(conn_id=redshift_conn_id, **kwargs)
warnings.warn(
"""This class is deprecated.
Please use `airflow.providers.common.sql.operators.sql.SQLExecuteQueryOperator`.""",
DeprecationWarning,
stacklevel=2,
)
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