damccorm opened a new issue, #21359: URL: https://github.com/apache/beam/issues/21359
The first iteration of projection pushdown will only support pushdown on transforms at the beginning of the pipeline. This is due to difficulties using PTransformOverrideFactory - it requires getting the transform's input as an argument, and there's currently no way to do this generically. For more on projection pushdown, see BEAM-12976. Imported from Jira [BEAM-13658](https://issues.apache.org/jira/browse/BEAM-13658). Original Jira may contain additional context. Reported by: ibzib. -- 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]
