Which version of JavaScript for views? And what is builtin?

avsej,

Also, a guide to debugging Javascript problems would be appreciated. I wrote a reduction that caused the database to infinitely loop creating and deleting the view. Apparently, when the reduction does not reduce the data enough, this happens. (Actually, the group reduction was well within the 64KB limit, there are apparently subsequent reductions that force the memory exhaustion.)

Anon,
Andrew