haibow commented on issue #4774: Refactor virtualColumn to extraColumn URL: https://github.com/apache/incubator-pinot/pull/4774#issuecomment-550859411 > @haibow Why would renaming virtual column to extra column solve this problem? Or are you suggesting besides virtual column, add another type of column which is backed by a columnProvider but can be selected by `select *`? BTW, the only query which treats virtual column differently is `select *` Right, extraColumnProvider keeps the concept of providing custom data at query time and not persisting data to disk. It includes virtual column that cannot not answer any user query and another type of column (I don't have a new name for it yet) that can. Renaming basically broadens the notion of this column provider so some columns can be included in select * queries, will not be pruned by schema pruner, etc
---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
