sirenbyte commented on code in PR #26227: URL: https://github.com/apache/beam/pull/26227#discussion_r1185034569
########## learning/tour-of-beam/learning-content/cross-language/sql-transform/description.md: ########## @@ -0,0 +1,78 @@ +<!-- +Licensed 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. +--> + +### Sql transform + +In Apache Beam, you can use **SQL** transforms to query and manipulate your data within the pipeline using SQL-like syntax. This is particularly useful if you're already familiar with SQL and want to leverage that knowledge while processing data in your Apache Beam pipeline. + +Apache Beam **SQL** is built on top of Calcite, an open-source SQL parser, and optimizer framework. + +To use **SQL** transforms in Apache Beam, you'll need to perform the following steps: + +Create a `PCollection` of rows. In Apache Beam, **SQL** operations are performed on `PCollection<Row>` objects. You'll need to convert your data into a `PCollection` of rows, which requires defining a schema that describes the structure of your data. Review Comment: Done -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
