Alvaro Herrera <alvhe...@commandprompt.com> writes: > Excerpts from Tom Lane's message of mié sep 08 12:12:31 -0400 2010: >> AFAIR it doesn't keep the first snapshot around. If it did, most of >> your work on snapshot list trimming would have been useless, no?
> That's my point precisely. The name "IsolationUsesXactSnapshot" makes > it sound like it applies to any transaction that uses snapshots for > isolation, doesn't it? I don't think so, at least not when compared to the alternative IsolationUsesStmtSnapshot. > How about IsolationUses1stXactSnapshot This just seems longer, not really better. In particular, we have *always* adhered to the phraseology that a "transaction snapshot" is the first one taken in a transaction, so I don't see exactly why it's confusing you now. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers