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Full push down & Partial push down

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How to check whether my operation is fully pushed down or partially done ?

 

View optimized SQL is the only way to check whether the operation i am doing is fully pushed down or partially done ? i have the below in

the SAP article which says

Operations within the SELECT statement that the software can push to the

database include:

 

• Aggregations — Aggregate functions, typically used with a Group by statement, always produce a data set smaller than or the same size as

the original data set.

 


My doubt here , If i do the opearions like one query transform to just map from my source to target and another query to do the sorting and another one to group by will have a better performace or combining everything in one query transform will have a better performace ??

 

Thanks,

AJ.


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