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from airflow.contrib.hooks.vertica_hook import VerticaHook
from airflow.models import BaseOperator
from airflow.utils.decorators import apply_defaults
[docs]class VerticaOperator(BaseOperator):
"""
Executes sql code in a specific Vertica database
:param vertica_conn_id: reference to a specific Vertica database
:type vertica_conn_id: str
:param sql: the sql code to be executed. (templated)
: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'
"""
[docs] template_fields = ('sql',)
[docs] template_ext = ('.sql',)
@apply_defaults
def __init__(self, sql, vertica_conn_id='vertica_default', *args, **kwargs):
super(VerticaOperator, self).__init__(*args, **kwargs)
self.vertica_conn_id = vertica_conn_id
self.sql = sql
[docs] def execute(self, context):
self.log.info('Executing: %s', self.sql)
hook = VerticaHook(vertica_conn_id=self.vertica_conn_id)
hook.run(sql=self.sql)