> That's the behaviour I wanted to get from it. RI triggers
> need to see what's committed and what their own transaction
> did so far. That's HeapTupleSatisfiesNow().
>
> Since they lock everything they access, they simply force the
> old (pre MVCC) behaviour - wait if something is actually in
> use until the other transaction ends. No snapshots, no pain.
Sounds good.
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