Limitation for Max number of values for a given field

Elastic Stack Elasticsearch
1

Is there any limitation for max number of values for a given field?

I am having a use case for a document with 800k distinct values for a given field. each value will be in 10-20 characters and in keyword type. Before I try this in my local cluster, I would like to undersrand if there is any limitation and also best practise for such a case?

Currently, I think this should be still within the max_content_length which is 100MB. and other limit seems does not apply, like max number of nested object and max number of fields.

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This sounds unusual. What is the use case? How many such documents are you planning to index? How are you going to query them?

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