Stephan Szabo <sszabo@megazone23.bigpanda.com> writes:
> That's because the set default uses a pretty ugly hack. It plans the
> query with =NULL and then replaces the NULL with the default value's
> stored plan info. My first guess is that it's something with this that's
> causing the crash.
Yeah, it's failing to allow for the possible need to insert a type
coercion step. This code shouldn't be here at all, really --- it should
be using build_column_default instead of messing about with the
default expression directly. I can fix it, unless you want to...
regards, tom lane