kennknowles opened a new issue, #18903: URL: https://github.com/apache/beam/issues/18903
We can walk backwards through the graph, analyzing which fields are accessed. When we find paths where many fields are never accessed, we can insert a projection transform to drop those fields preemptively. This can save a lot of resources in the case where many fields in the input are never accessed. To do this, the FieldAccessDescriptor information must be added to the portability protos. Imported from Jira [BEAM-4457](https://issues.apache.org/jira/browse/BEAM-4457). Original Jira may contain additional context. Reported by: reuvenlax. Subtask of issue #18898 -- 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]
