jonahgao commented on issue #14380: URL: https://github.com/apache/datafusion/issues/14380#issuecomment-2645778218
> The original discussion about wildcard expansion is [#11639 (comment)](https://github.com/apache/datafusion/issues/11639#issuecomment-2250895868). It's used to delay the wildcard expansion to decrease the cost when facing huge column numbers ([#11639 (comment)](https://github.com/apache/datafusion/issues/11639#issuecomment-2253671162)). Since `exprlist_to_fields` is called in the builder, it seems that wildcard expansion still hasn't been delayed. > Or maybe we can allow the customized behavior for the wildcard planning, just like the original reason of https://github.com/apache/datafusion/issues/11639 Using ExprPlanner makes sense to me. -- 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
