Major Description
I propose to add tree pattern pruning to the CTESubstitution rule in order to skip tree traversal when the tree does not contain an UnresolvedWith expression.
This is motivated by profiling a job which uses DataFrame APIs to incrementally construct a huge query plan (200k+ nodes): each API call results in eager re-analysis of the plan, of which CTESubstitution accounts for the majority of the analysis time. This query didn't contain CTEs, so skipping the CTESubstitution significantly speeds up analysis.
I plan to submit a patch for this.
