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ListOf Summary field overhead

Question asked by PeterDoern on Feb 9, 2017
Latest reply on Feb 9, 2017 by PeterDoern

I am thinking of including a ListOf ( ID ) summary field in each of my tables as standard, where ID is the primary key of the field. The idea is to make it easier to store and retrieve found sets.


My question is: will this cause a huge performance hit?


I imagine that large found sets might take a long time to gather but otherwise, is it true that this gathering would only take place when the summary field were invoked in a calculation or on a layout?