Hi there, Type marshalling is seriously broken in ZSQL methods. The bug is a bit subtle, though. There are reports of this in the collector almost a month old, and the severity of this bug is pretty high (could seriously disrupt Zope upgrades to recent versions which apparently have this bug; I
[browsing through old versions of Zope] I can't find any code that's supposed to do this in old versions of Zope either. (I may be missing something, though) If this feature was never there, I'd consider the ZSQL documentation (for instance in the Zope help) to be quite broken however.