public VizqlDsInterpretMetadata(BsonDocument document)
{
SetEventMetadata(document);
BsonDocument values = BsonDocumentHelper.GetValuesStruct(document);
HasNull = values.GetNullableBool("has-null");
Precision = values.GetNullableInt("precision");
Scale = values.GetNullableInt("scale");
RemoteType = values.GetString("remote-type");
Name = values.GetString("name");
Collation = values.GetString("collation");
}