Mailed by Sam Saffron:
We upgraded to PG 1.1 this week and for the first time I am seeing error in async_exec with
`ERRNO::EBADF` (Bad file descriptor - rb_wait_for_single_fd())
Is there some change in async_exec that could be triggering this? We never saw this on 1.0. The frequency of the errors is very small, but there may be some sort of new concurrency issue.