Contexts

I'm about to launch into an experiment that will do some new things
inside the PG server.  I'm sure to have a lot of problems, and one
of them I can already tell is going to be difficult is the business
of contexts: memory contexts, scan contexts and the like.

Before I go around shooting myself in the foot, I would like to
educate myself about how they work inside the current code.  Does
anyone know where best to look?  It can be the code, better if it's
a document.  I'm happy to RTFM or RTFC, but I'd like to know where
to start.

++ kevin


-- 
Kevin O'Gorman  (805) 650-6274  mailto:kogorman@pacbell.net
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"There is a freedom lying beyond circumstance,
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be grounded upon its absorption in what is
changeless amid change"   -- Alfred North Whitehead