Hello Shreelekhya,

Please find the comments inline in the design document link shared.

Regards,
Indhumathi M

On 2022/03/17 16:09:10 Shreelekhya Gampa wrote:
> Hi everyone,
> 
> Currently, MV in carbon is supported as incremental or full refresh load
> based on the type of query. Whenever MV is created with Average aggregate,
> a full refresh is done meaning it reloads the whole MV for any newly added
> segments. This will slow down the loading. With an incremental data load of
> Average, only the segments that are newly added can be loaded to the MV.
> With the Average function, incremental loading doesn't work directly as the
> average of avg(col) in MV won't give correct results. To achieve
> proper results we need the sum and count of the columns.
> 
> Following is the link to the design document. Please let me know
> your thoughts about the same.
> https://docs.google.com/document/d/1kPEMCX50FLZcmyzm6kcIQtUH9KXWDIqh-Hco7NkTp80/edit?usp=sharing
> 
> 
> Thanks,
> Shreelekhya Gampa
> 

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