Source code for airflow.providers.vertica.operators.vertica

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from typing import TYPE_CHECKING, Any, List, Sequence, Union

from airflow.models import BaseOperator
from airflow.providers.vertica.hooks.vertica import VerticaHook

if TYPE_CHECKING:
    from airflow.utils.context import Context


[docs]class VerticaOperator(BaseOperator):
    """
    Executes sql code in a specific Vertica database.

    :param vertica_conn_id: reference to a specific Vertica database
    :param sql: the SQL code to be executed as a single string, or
        a list of str (sql statements), or a reference to a template file.
        Template references are recognized by str ending in '.sql'
    """

[docs]    template_fields: Sequence[str] = ('sql',)
[docs]    template_ext: Sequence[str] = ('.sql',)
[docs]    template_fields_renderers = {'sql': 'sql'}
[docs]    ui_color = '#b4e0ff'

    def __init__(
        self, *, sql: Union[str, List[str]], vertica_conn_id: str = 'vertica_default', **kwargs: Any
    ) -> None:
        super().__init__(**kwargs)
        self.vertica_conn_id = vertica_conn_id
        self.sql = sql

[docs]    def execute(self, context: 'Context') -> None:
        self.log.info('Executing: %s', self.sql)
        hook = VerticaHook(vertica_conn_id=self.vertica_conn_id)
        hook.run(sql=self.sql)