Kevin,
I think you overestimate what we can meaninfully put in a tiny
radio-button survey.
I'm only trying to get a straw poll idea of whether we have lots of
people using SERIALIZABLE mode *at all*, or (as I suspect) almost none.
If we get < 5% or respondees saying "we use it in production" then I
think we can assume that backwards compatibility isn't worth discussing.
--
-- Josh Berkus
PostgreSQL Experts Inc.
http://www.pgexperts.com