About Terms lookup mechanism peformance

Hi all!

Terms Query performance problems are spoken in this issue, but I was wondering if this would be applied in case of a Terms Query using the lookup mechanism as well.

In the docs it says:

When it’s needed to specify a terms filter with a lot of terms it can be beneficial to fetch those term values from a document in an index.

But not sure how much is that a lot.

Planning to do an stress test, but I would like to know if someone had experience with thousands of terms using lookup.


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