decster edited a comment on issue #3382: URL: https://github.com/apache/incubator-doris/issues/3382#issuecomment-620355243
@morningman > Does it allow to update the column which already be flushed to the hard disk? Do you mean 1: MemTablet migrate to SSD/HDD tablet or 2: ColumnPages flush to hard disk? For case 1: we will add partial row update support for disk storage engine, which may be slower. For case 2: it's allowed > What about the recovery process？How to recover the data from WAL? WAL is just a set of WriteTx files, we load the snapshot, and all the committed WriteTx files after the snapshot version. ---------------------------------------------------------------- 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]
