Search after - unique sort fields

(Wojciech Mazur) #1

I'm trying to use search after pagination in my project, using index with over 10M records.

I wonder what's the easiest way to obtain unique search_after parameter if i don't mind about sort order and I don't want to define it?
Using _doc or _seq_no field only generates duplicates in an adequate number as number of shards.
Does using combination of thoose two fields guarantees uniqueness?

(system) #2

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