lyy-pineapple opened a new issue, #5502: URL: https://github.com/apache/incubator-gluten/issues/5502
### Description When transforming rows to columns, each row is constructed using the `schema` to build `UnsafeProjection`, which is a time-consuming process. However, it's evident that `UnsafeProjection` can be reused.  Below is a flamegraph of a Spark task lasting more than 10 minutes, with rows containing fields structured as maps.  -- 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]
