which index will .Option apply on?

[li-zheng-hao]

 DB.Index<Model>()
   .Key(it => it.A, KeyType.Ascending)
   .Key(it => it.B, KeyType.Ascending)
   .Option(o => { o.Unique = true; })
   .CreateAsync();

hello i just started using this library，in the above case，will unique attribute apply on A or B or Both?

[dj-nitehawk]

specify index keys by chaining calls to the .Key() method. compound indexes are created by calling the .Key() method multiple times.

so when you call .Key() multiple times, you're creating a compound index. so the uniqueness applies to the compound index as a whole.

to create single key indexes, just call .Key() once per each .CreateAsync() call.