During a Drush pm-uninstall, is there a way to see what sql queries were run?
You could try to adapt the devel query log as Letharion suggested, but that would involve some coding.  I have done similar things (for a different purpose) by using the Mysql General Query Log.  This requires restarting mysqld with an additional parameter, but beyond that minor inconvenience, works pretty well and shows you absolutely everything that's going on with the database.