xy2953396112 opened a new pull request #2252: URL: https://github.com/apache/calcite/pull/2252
https://issues.apache.org/jira/browse/CALCITE-4386 In the current implementation, some operators, such as `LogicalProject` and `LogicalFilter`, can be directly accessed by `Relshuttle`, while others, such as `LogicalCalc` and `LogicalWindow`, cannot be accessed directly. `RelShuttle` is a very important tool class. Usually, we will do equivalent transformation of relational algebra in the process of relational algebra optimization. This PR will cover the method of the operator visit `RelShuttle`, and the specific operator can be accessed directly by visiting `RelNode`. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
