is there any impact in performance when we need to access last sort key for any particular partition key

Question

I am creating a dynamoDB table. I am using an custromerId as partition key and versionNumber as sort key. suppose there are 1000 versions for any particular customerId. for my use-case I always want to find out last version of any customerId. will there be any difference in performance when i want first versionNumber and when i want last versionNumber or both will take same time.

score 1 · Answer 1 · answered Jun 22 '20 at 14:35

1

No, actually we'll have a parameter ScanIndexForward (True/False). So based on this it starts reading the dynamoDB in ascending or the descending order.

answered Jun 22 '20 at 14:35

Sai Sreenivas

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so now that the parameter is added, is there any performance/time/cost penalty for using `ScanIndexForward`? – Melih Yıldız' Mar 06 '22 at 21:54

is there any impact in performance when we need to access last sort key for any particular partition key

1 Answers1