is createIndexes in mongoose idempotent?

[kasir-barati]

In MongoDB API it seems like calling this API is basically safe as many times as you like since it is idempotent: https://www.mongodb.com/community/forums/t/behavior-of-createindex-for-an-existing-index/2248

But I just wanna confirm that this is also the case for DocumentDB in AWS.

And whether it will try to reindex the existing document again and again if I call this API on a collection with lots of documents.

[kasir-barati]

A related question: #15462 (comment)

[vkarpov15]

I believe so, but Mongoose doesn't officially support DocumentDB or test against DocumentDB so I'm not certain.