Re: getting rid of SnapshotNow

On 2013-07-26 08:49:38 -0400, Tom Lane wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
> > OK.  I've taken care of all remaining uses of SnapshotNow in the code
> > base.  I think we can go ahead and remove it, now.  Patch attached.
> 
> > (And there was, hopefully, much rejoicing.)
> 
> What about SnapshotSelf?

I thought about that yesterday and I think we should replace the usages
which aren't easily replaceable (constraint stuff) with an mvcc
snapshot, just one treats our transaction's current CommandId as
visible. That should be doable?

Greetings,

Andres Freund

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