protected override Expression VisitConstant(ConstantExpression node)
{
if (TypeSystem.IsTypeAssignable(node.Value.GetType(), typeof(DbQueryable <>)))
{
sqlQueryBuilder.AddSelect(TypeSystem.GetElementType(node.Value.GetType()), null);
}
else
{
sqlQueryBuilder.AddConstant(node.Value);
}
return(base.VisitConstant(node));
}