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Posted to issues@carbondata.apache.org by "Ajantha Bhat (Jira)" <ji...@apache.org> on 2020/02/24 14:06:00 UTC

[jira] [Created] (CARBONDATA-3720) Support new optimized insert flow for Alter table scenarios

Ajantha Bhat created CARBONDATA-3720:
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             Summary: Support new optimized insert flow for Alter table scenarios
                 Key: CARBONDATA-3720
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-3720
             Project: CarbonData
          Issue Type: Sub-task
            Reporter: Ajantha Bhat
            Assignee: Ajantha Bhat
             Fix For: 2.0.0


Currently, the rearrange logic is based on schema ordinal.

For alter table drop and add columns, schema ordinal based re arrange may not work as index will be outside the projection size.

Hence don't use schema ordinal for rerrange, implemented a position map based rearrange.



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