Re: MemoryContextSwitchTo (Re: [GENERAL] Autovacuum daemon terminated by signal 11)

Simon Riggs <simon@2ndQuadrant.com> writes:
> Can we put a identifier into header of each control block, an ascending
> value that is unlikely duplicate between calls? That way we'd be able to
> tell immediately it wasn't the same block,

Same block than what?  Unless you can somehow hide that ID number in
a MemoryContext pointer, the staleness of the pointer won't be evident.
        regards, tom lane