Timestream multi-measure pricing

Question

I have a timestream table with these columns, inserted with multi-measure type records:

system (varchar)
measure_name (varchar)
time (timestamp)
MEM (double)
CPU (double)
DSK (double)
SWP (double)

most of the records have MEM,DSK,SWP set to null (empty).

How the size of the record is calculated?

a record with all the data
system=rpi, measure_name=v, time=2023-07-31 12:38:15.474000000, MEM=16.8, CPU=9.7, DSK=11.6, SWP=0.1

and a record with some NULLs
system=rpi, measure_name=v, time=2023-07-31 12:38:15.474000000, MEM=-, CPU=9.7, DSK=-, SWP=-

have the same size/cost?

Answer

https://repost.aws/questions/QUcGp3Uf4DQnCNbNgwIFqgUg/amazon-timestream-is-there-a-cost-associated-with-empty-measure-values
There is no charge  for Null values.

Timestream multi-measure pricing

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