It doesn’t seem like there is any way to debug long-running query lambdas. We integrated Rockset today and we saw a few outliers we wanted to investigate. Speaking with support now to try and get this info but would definitely like the ability to look at the parameters/queries themselves.
We’re actively exploring new mechanisms for tracking and helping debug long-running queries, and we would like to understand your needs and requirements. I’ll reach out shortly to discuss further.