More info about the problem here: http://groups.google.com/group/quicklisp/browse_thread/thread/bc15326d899057da There is a new release of clsql ready to go which fixes the problem. It just needs to be put into the overlay. Reproducible: Always
I will try to look into it, inside the weekend, can't now. Thanks for reporting it.
1.0.55-r1 is now stable, bug 326217, so closing this one