[reporter="jvs", created="Sat, 23 Dec 2006 01:53:44 -0500 (GMT-05:00)"]
Reduce patterns to only reference RelNodes of interest (no need to include a RelNode in the pattern just to be able to make metadata calls).
See if it's possible to rebuild maps after planner runs (instead of reusing information provided by SqlToRelConverter); this would allow us to get rid of the noDAG option to Hep.
[reporter="jvs", created="Sat, 23 Dec 2006 01:53:44 -0500 (GMT-05:00)"]