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New Contributor III

Group by in preceding load.


Is group by allowed in precedingg load?

Or we have to group it in the main load and take the summary data into preceding load?


Tags (1)
3 Replies

Re: Group by in preceding load.

Yes, Allowed

Life is so rich, and we need to respect to the life !!!

Re: Group by in preceding load.

Hi, it should work,I tested with this script:


LOAD Articulo,


Sum(Ventas) as  Ventas

Group By Articulo, Fecha;

LOAD * Inline


Articulo, Fecha, Ventas

A1 ,01/01/2017, 10

A1 ,01/01/2017, 80

A1 ,02/01/2017, 20

A2, 02/01/2017, 30


Re: Group by in preceding load.

Be very careful. You will get all sorts of side-effects that you cannot immediately explain. And yes it may work on simple examples. But those are not necessarily what you need in your situation.

Better use simple things in a Preceding LOAD, and do the GROUP BY in a separate operation on an internal table.

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