Re: [Discussion]Presto Queries leveraging Secondary Index

Posted by VenuReddy on Mar 23, 2021; 5:07am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/Discussion-Presto-Queries-leveraging-Secondary-Index-tp105291p107176.html

Hi all.!

As discussed in the community meeting held on last week of Feb 2021, we
already have plan to make Secondary Index as a Coarse Grain Datamap in the
future. And It would be more appropriate for this requirement to  implement
Secondary Index as the CG Datamap. Presto query can leverage secondary index
in the pruning through the datamap interface. Spark queries can still
continue to make use of secondary indexes with existing approach of query
plan modification.

Have added the detailed design in the below doc.

https://docs.google.com/document/d/1VZlRYqydjzBXmZcFLQ4Ty-lK8RQlYVDoEfIId7vOaxk/edit?usp=sharing

Please review it and let me know your suggestions/inputs.

Thanks,
Venu Reddy



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