decster commented on issue #3382: URL: https://github.com/apache/incubator-doris/issues/3382#issuecomment-620367207
> After MemTablet migrate to hard disk. For `Update` operation, do we need to `seek and update`? > Or actually we just implement a `Upsert` operation? For full row update, it's an upsert and the old REPLACE behavior should cover it. For partial row update, one way is to `seek` and read the old version of missing columns, another way is just store the partial row(need a new file format), and do merge-on-read ---------------------------------------------------------------- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
