clintropolis opened a new pull request, #19659: URL: https://github.com/apache/druid/pull/19659
### Description This PR is a minor optimization to clustered segments to allow query virtual columns to be substituted with physical columns if the clustered segment was created with an 'equivalent' column (clustered segments preserve any virtual columns used during their creation in their metadata). For example, if the function `lower(some_column)` is used to create the column, after this patch running the same expression at query time will be swapped out to read the value from the column directly instead of recomputing the `lower` operation. -- 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]
