Hi qiuchenjian, *1) lazy or non-lazy mode when using different option * Currently MV supports data load through only lazy mode. Incremental data loading will be supported for the same
*2)reuse the existing MV data and generate new segment like you describe or overwrite MV table directly when using different option * As per the 1st point, explanation given in above posts on how incremental dataloading will be supported for mv will be followed. Even if we support non-lazy data load mode for MV, overwrite will not happen. *3) merge the MV table segments like main table, automatically and manually* Yes. Both Auto compaction and Manual compaction will be supported for mv datamap -- Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/