netag

Ensure Index Behaviour

3

Hi all I'm having some trouble understanding the reasoning behind the [implementation](https://github.com/Litote/kmongo/blob/master/kmongo-core/src/main/kotlin/org/litote/kmongo/MongoCollections.kt#L634-L647) of `ensureIndex`. ```kotlin fun MongoCollection.ensureIndex(keys: Bson, indexOptions: IndexOptions = IndexOptions()): String { return try { createIndex(keys, indexOptions) }...