adriangb commented on issue #16800: URL: https://github.com/apache/datafusion/issues/16800#issuecomment-3079371233
Thank you for chiming in! > We'll be able to start making the migration with the DF 49.0 release? Yes that's the plan. I'm trying to figure out the way to make the migration as incremental and painless as possible. We'll also have to be doing this migration. The current plan as outlined in https://github.com/apache/datafusion/pull/16791 is that by default if you don't provide anything you use the new system. If you have a custom SchemaAdapter it will be used for everything. You can start migrating by implementing a PhysicalExprRewriter that has 1:1 pairity with your SchemaAdapter implementation and passing that in _as well as_ your SchemaAdapter, then the SchemaAdapter will be used for projections and the PhysicalExprRewriter will be used for predicate pushdown. Once we implement projection pushdown without any changes to your code you'd be fully migrated to the new system and can just remove the SchemaAdapter. -- 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
