alamb commented on code in PR #15261: URL: https://github.com/apache/datafusion/pull/15261#discussion_r2150964083
########## datafusion/datasource/src/schema_adapter.rs: ########## @@ -98,6 +100,46 @@ pub trait SchemaMapper: Debug + Send + Sync { fn map_batch(&self, batch: RecordBatch) -> datafusion_common::Result<RecordBatch>; } +pub trait MissingColumnGeneratorFactory: Debug + Send + Sync { Review Comment: I haven't had a chance to review this entire PR yet, but I am feeling a little strange that these traits are not used by `SchemaMapper` but instead are used by `DefaultSchemaMapper` I wonder what is the usecase for these extra two traits, compared to say adding a method on `SchemaMapper` -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org