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.. _howto/operator:ImpalaOperator:

SQLExecuteQueryOperator to connect to Apache Impala

Use the :class:SQLExecuteQueryOperator<airflow.providers.common.sql.operators.sql.SQLExecuteQueryOperator> to execute SQL queries against an Apache Impala <https://impala.apache.org/>__ cluster.

.. note:: Previously, a dedicated operator for Impala might have been used. After deprecation, please use the SQLExecuteQueryOperator instead.

.. note:: Make sure you have installed the apache-airflow-providers-apache-impala package to enable Impala support.

Using the Operator ^^^^^^^^^^^^^^^^^^

Use the conn_id argument to connect to your Apache Impala instance where the connection metadata is structured as follows:

.. list-table:: Impala Airflow Connection Metadata :widths: 25 25 :header-rows: 1

• • Parameter
  • Input
• • Host: string
  • Impala daemon hostname or IP address
• • Schema: string
  • The default database name (optional)
• • Login: string
  • Username for authentication (if applicable)
• • Password: string
  • Password for authentication (if applicable)
• • Port: int
  • Impala service port (default: 21050)
• • Extra: JSON
  • Additional connection configuration, such as: {"use_ssl": false, "auth": "NOSASL"}

An example usage of the SQLExecuteQueryOperator to connect to Apache Impala is as follows:

.. exampleinclude:: /../tests/system/apache/impala/example_impala.py :language: python :start-after: [START howto_operator_impala] :end-before: [END howto_operator_impala]

Reference ^^^^^^^^^ For further information, see:

• Apache Impala Documentation <https://impala.apache.org/docs/>__

.. note:: Parameters provided directly via SQLExecuteQueryOperator() take precedence over those specified in the Airflow connection metadata (such as schema, login, password, etc).