alamb opened a new issue, #21145: URL: https://github.com/apache/datafusion/issues/21145
### Is your feature request related to a problem or challenge? @pgwhalen says on https://github.com/apache/datafusion-site/pull/161/changes#r2972139725 > As someone who struggled with implementing filter pushdown in a custom table provider before, it would be helpful if there was a section with examples on actually implementing it, just to specifying that the table provider supports it. Going from filters: &[Expr] to something more useful was pretty intimidating for me as a newbie. I ended up learning about LiteralGuarantee::analyze from the pruning_predicate.rs example and that was the big unlock, but as someone not familiar with database internals terminology, it was nonobvious initially. ### Describe the solution you'd like It would be cool to add an example that shows how to use PruningPredicate and LiteralGuarantee to decide among files based on predicates, for example ### Describe alternatives you've considered _No response_ ### Additional context _No response_ -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
