Hi Akash, It is good to have this feature and expecting to get good understanding of the design and solution from the design document.
Please clarify the below points. (1) How are we planning support lazy loads? Is there any one-to-one mapping between the segments of the main table and the datamaps? (2) In case if one-to-one mapping to be maintained, lets take pre-aggregate datamaps, even though 'n' number of segments are loaded to the main table, after 'n' loads if the user is trying to create a pre-aggregate datamap, current pre-aggregate implementation creates only one segment, here the one-to-one mapping is broken. Old store is in this way. What is the plan to handle the old store? (3) If the datamap is not updated/inline with the main table loads, the system will fall back to the main table pruning? If so, is this a time consuming process to check for the status of the datamaps for all the queries, if needed to hit datamaps? Hope all these points will be covered in the design document. Thanks, Dhatchayani -- Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/