DanSkells commented on issue #54646: URL: https://github.com/apache/spark/issues/54646#issuecomment-4015001917
I don't have the profile to hand, but this is the code that it ends up hitting, and there's an 11 year old TODO stating that this is a linear scan: https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala#L444. The original PR where this TODO was created was the PR that added the MapData type to begin with, so it seems that this hasn't been addressed since then. -- 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]
