What is the difference between In-Memory Sort and Inputs
must be sorted?

Answer Posted / mahendra patnaik

The Inmemory sort and input must be sorted options are
there in the Join,Rollup and Dedup components.
Main difference between these two is if you selected input
must be sorted options in the above mentioned components
the the downstream components will get the records in a
sorted oder. if you are selected option as Inmemory sort
then the downstream components will not get the sorted
records.

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