alamb opened a new pull request #1726: URL: https://github.com/apache/arrow-datafusion/pull/1726
# Which issue does this PR close? Closes https://github.com/apache/arrow-datafusion/issues/1725 # Rationale for this change I am trying to create a low cost (low copy) way for `Expr` simplification. More details on https://github.com/apache/arrow-datafusion/issues/1725 # What changes are included in this PR? 1. Add a trait that can provide the needed information for schema quries to Expr 1. Change the functions on `Expr` that take a &DFSchema such as `Expr::nullable` to be nullable 3. `impl` this new trait for `DFSchema` so that existing callsites work # Are there any user-facing changes? 1. It is now possible to get an Expr's type without constructing a `DFSchema`; Existing code should continue to work -- 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]
