lvheyang commented on issue #723: URL: https://github.com/apache/arrow-datafusion/issues/723#issuecomment-880059465
@alamb I think the root problem is some of the scalar functions ( such as abs/ sin/ cos/ pow ) are not monotonous. We cannot prune all the rows when `fun(min) < Value` or `fun(max) > Value` is false. Do you have any idea how should we deal with such a situation? A possible way is to maintain a map, to mark the scalar functions' monotonicity. If the function is not monotonous, we would stop building the pruning predicate. Do you think if it is acceptable? -- 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]
