Source code for postgres_operator

# -*- coding: utf-8 -*-
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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# http://www.apache.org/licenses/LICENSE-2.0
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from airflow.hooks.postgres_hook import PostgresHook
from airflow.models import BaseOperator
from airflow.utils.decorators import apply_defaults


[docs]class PostgresOperator(BaseOperator): """ Executes sql code in a specific Postgres database :param postgres_conn_id: reference to a specific postgres database :type postgres_conn_id: string :param sql: the sql code to be executed :type sql: Can receive a str representing a sql statement, a list of str (sql statements), or reference to a template file. Template reference are recognized by str ending in '.sql' :param database: name of database which overwrite defined one in connection :type database: string """ template_fields = ('sql',) template_ext = ('.sql',) ui_color = '#ededed' @apply_defaults def __init__( self, sql, postgres_conn_id='postgres_default', autocommit=False, parameters=None, database=None, *args, **kwargs): super(PostgresOperator, self).__init__(*args, **kwargs) self.sql = sql self.postgres_conn_id = postgres_conn_id self.autocommit = autocommit self.parameters = parameters self.database = database def execute(self, context): self.log.info('Executing: %s', self.sql) self.hook = PostgresHook(postgres_conn_id=self.postgres_conn_id, schema=self.database) self.hook.run(self.sql, self.autocommit, parameters=self.parameters)