Check if items need updating

Elastic Stack Elasticsearch
1

Hi,
Currently working on a scheduled batch import.
The items that are being saved may or may not contain updated values.
My question is if I should first get the documents by IDs and check if the items need updating, and then post if they do, or should I just post all documents? I guess 7 out of 10 times it will not contain updated values.

2

Updates in Elasticsearch are relatively expensive, so if you can reduce the number of documents sent to it then it'd make sense.

3

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