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A comment on Immutability, MVCC, and garbage collection (2013).

Re:Immutability, MVCC, and garbage collection (2013) by juliangregorian on Sunday February 01, 2015 @04:19AM (#8979533)
On the RethinkDB thread yesterday there seemed to be a popular misconception that MVCC provides rewindable versioning capabilities -- it does not. Good to see this article getting some traction.
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Re:Immutability, MVCC, and garbage collection (2013) by hyc_symas on Sunday February 01, 2015 @04:39AM (#8979555)
Many MVCC systems can. I personally have never had a reason to want to.
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Re:Immutability, MVCC, and garbage collection (2013) by juliangregorian on Sunday February 01, 2015 @11:59AM (#8980653)
Sure, but it's not due to implementing MVCC. And, as the article illustrates, that type of optimistic approach doesn't come for free.
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