Source code for airflow.providers.google.cloud.transfers.bigquery_to_postgres

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"""This module contains Google BigQuery to PostgreSQL operator."""
from __future__ import annotations

from typing import Sequence

from airflow.providers.google.cloud.transfers.bigquery_to_sql import BigQueryToSqlBaseOperator
from airflow.providers.postgres.hooks.postgres import PostgresHook


[docs]class BigQueryToPostgresOperator(BigQueryToSqlBaseOperator): """ Fetch data from a BigQuery table (alternatively fetch selected columns) and insert into PostgreSQL table. .. seealso:: For more information on how to use this operator, take a look at the guide: :ref:`howto/operator:BigQueryToPostgresOperator` :param target_table_name: target Postgres table (templated) :param postgres_conn_id: Reference to :ref:`postgres connection id <howto/connection:postgres>`. """
[docs] template_fields: Sequence[str] = tuple(BigQueryToSqlBaseOperator.template_fields) + ( "dataset_id", "table_id", )
def __init__( self, *, target_table_name: str, postgres_conn_id: str = "postgres_default", **kwargs, ) -> None: super().__init__(target_table_name=target_table_name, **kwargs) self.postgres_conn_id = postgres_conn_id
[docs] def get_sql_hook(self) -> PostgresHook: return PostgresHook(schema=self.database, postgres_conn_id=self.postgres_conn_id)

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