GavinRay97 edited a comment on issue #1864: URL: https://github.com/apache/arrow-datafusion/issues/1864#issuecomment-1047043617
I had a read through the source of the `TableProvider` trait here: https://github.com/apache/arrow-datafusion/blob/0b1bef123acc5f46f225950d13f296104a543727/datafusion/src/datasource/datasource.rs#L58-L96 Maybe a dumb question -- but I see that `projection` and `filters` are part of the `scan()` method, but not `joins` or similar. In relational algebra, is a `join` considered a specialized `project`, or how would you implement that with the `scan()` method? -- 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]
