internal static EdmModel CreateOeEdmModel(bool useRelationalNulls)
{
var dataAdapter = new OrderDataAdapter(true, useRelationalNulls);
OeEdmModelMetadataProvider metadataProvider = OrderDataAdapter.CreateMetadataProvider();
bool allowCache = TestHelper.GetQueryCache(dataAdapter).AllowCache;
var order2DataAdapter = new Order2DataAdapter(allowCache, useRelationalNulls);
var refModel = new OeEdmModelBuilder(dataAdapter, metadataProvider).BuildEdmModel();
return(order2DataAdapter.BuildEdmModel(refModel));
}