I wrote:
> When preparing to deal with a new statement:
> - acquire lockX
> - if not a superuser
> - and not in an active transaction
> - and countX >= max_active_transactions
> - place current process at tail of waitX queue, and block
> - (lockX would be released while blocked)
> - in
The thread on Admission Control caused me to realize that one policy
I'd been considering as a possibly useful second tier (execution)
admission control policy was actually more appropriate as a first
tier (simple) admission control policy. The difference (as defined
in the Hellerstein, Stonebrake
