Re: SSI implementation question - Mailing list pgsql-hackers

From Kevin Grittner
Subject Re: SSI implementation question
Date
Msg-id 4E9EFAF30200002500042267@gw.wicourts.gov
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In response to Re: SSI implementation question  (Dan Ports <drkp@csail.mit.edu>)
Responses Re: SSI implementation question
List pgsql-hackers
Dan Ports <drkp@csail.mit.edu> wrote:
> the sxact's lastCommitBeforeSnapshot needs to match the snapshot,
> SxactGlobalXmin needs to be set to the correct value, etc. That's
> why the call to GetSnapshotData happens from where it does
Oh, right.  I knew I was forgetting something.  What if that was
captured as part of building a snapshot?  That seems like it would
be a trivial cost compared to other snapshot-building activity, and
might give us a way to get this out from under the
SerializableXactHashLock locking.
-Kevin


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