Thanks Julian > I am skeptical that RelWithHint will work for large queries.
For “skeptical” do you mean how to transfer the hints during rule planning ? I’m also not that confident yet. > How do we introduce it in a reversible way Do you mean transform the RelWithHint back into the SqlHint ? I didn’t implement it in current patch, but I think we have the ability to do that because we have a inheritPath for each RelWithHint, we can collect all the hints together and merge them into the SqlHints, then propagate these SqlHints to the SqlNodes. > What are the other options? Do you mean the way to transfer hints during planning ? I have no other options yet. Best, Danny Chan 在 2019年10月16日 +0800 AM8:03，dev@calcite.apache.org，写道： > > I am skeptical that RelWithHint will work for large queries.
