SatishChGit commented on code in PR #36953: URL: https://github.com/apache/airflow/pull/36953#discussion_r1477018374
########## airflow/providers/teradata/transfers/teradata_to_teradata.py: ########## @@ -0,0 +1,91 @@ +# +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +from __future__ import annotations + +from typing import TYPE_CHECKING, Sequence + +from airflow.models import BaseOperator +from airflow.providers.teradata.hooks.teradata import TeradataHook + +if TYPE_CHECKING: + from airflow.utils.context import Context + + +class TeradataToTeradataOperator(BaseOperator): + """ + Moves data from Teradata source database to Teradata destination database. + + .. seealso:: + For more information on how to use this operator, take a look at the guide: + :ref:`howto/operator:TeradataToTeradataOperator` + + :param dest_teradata_conn_id: destination Teradata connection. + :param destination_table: destination table to insert rows. + :param source_teradata_conn_id: :ref:`Source Teradata connection <howto/connection:Teradata>`. + :param sql: SQL query to execute against the source Teradata database + :param sql_params: Parameters to use in sql query. + :param rows_chunk: number of rows per chunk to commit. + """ + + template_fields: Sequence[str] = ( + "sql", + "sql_params", + ) + template_ext: Sequence[str] = (".sql",) + template_fields_renderers = {"sql": "sql", "sql_params": "py"} + ui_color = "#e07c24" + + def __init__( + self, + *, + dest_teradata_conn_id: str, + destination_table: str, + source_teradata_conn_id: str, + sql: str, + sql_params: dict | None = None, + rows_chunk: int = 5000, + **kwargs, + ) -> None: + super().__init__(**kwargs) + if sql_params is None: + sql_params = {} + self.dest_teradata_conn_id = dest_teradata_conn_id + self.destination_table = destination_table + self.source_teradata_conn_id = source_teradata_conn_id + self.sql = sql + self.sql_params = sql_params + self.rows_chunk = rows_chunk + + def _execute(self, src_hook, dest_hook, context) -> None: + with src_hook.get_conn() as src_conn: + cursor = src_conn.cursor() + cursor.execute(self.sql, self.sql_params) + target_fields = [field[0] for field in cursor.description] + rows_total = 0 + for rows in iter(lambda: cursor.fetchmany(self.rows_chunk), []): + dest_hook.bulk_insert_rows( + self.destination_table, rows, target_fields=target_fields, commit_every=self.rows_chunk + ) + rows_total += len(rows) Review Comment: Yes. Used in log statement to print number of records transferred. Updated logger statement. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@airflow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
