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.. _howto/operator:RedshiftSQLOperator:

===============
Amazon Redshift
===============

`Amazon Redshift <https://aws.amazon.com/redshift/>`__ manages all the work of setting up, operating, and scaling a data warehouse:
provisioning capacity, monitoring and backing up the cluster, and applying patches and upgrades to
the Amazon Redshift engine. You can focus on using your data to acquire new insights for your
business and customers.

Prerequisite Tasks
------------------

.. include:: _partials/prerequisite_tasks.rst

Operators
---------

Execute a SQL query
===================

``RedshiftSQLOperator`` executes a SQL query against an Amazon Redshift cluster using a Postgres connection.

To execute a SQL query against an Amazon Redshift cluster without using a Postgres connection,
please check ``RedshiftDataOperator``.

.. exampleinclude:: /../../airflow/providers/amazon/aws/example_dags/example_redshift_sql.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_redshift_sql]
    :end-before: [END howto_operator_redshift_sql]

``RedshiftSQLOperator`` supports the ``parameters`` attribute which allows us to dynamically pass
parameters into SQL statements.

.. exampleinclude:: /../../airflow/providers/amazon/aws/example_dags/example_redshift_sql.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_redshift_sql_with_params]
    :end-before: [END howto_operator_redshift_sql_with_params]

Reference
---------

* `AWS boto3 library documentation for Amazon Redshift <https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/redshift.html>`__
* `Amazon Redshift Python connector <https://docs.aws.amazon.com/redshift/latest/mgmt/python-connect-examples.html>`__