IndexOptions._2dsphereIndexVersion

Sets the 2dsphere index version number.

MongoDB 2.4 can only support version 1.

MongoDB 2.6 and higher may support version 1 or 2.

MongoDB 3.2 and higher may support version 2 or 3.

struct IndexOptions
@.name("2dsphereIndexVersion")
@since(WireVersion.v26)
Nullable!int _2dsphereIndexVersion;

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