On Nov 8, 2006, at 10:49 AM, Michael L Torrie wrote:
If I recall correctly,
PostgreSQL and Oracle do not use locks at all to enforce integrity.
Maybe someone more knowledgeable can explain to me why this might be.
This sounded very much like some lock-free concurrency models I'm
interested in, so I did a google search and came up with a document
that will probably do a better job of explaining it than I could:
http://forge.objectweb.org/docman/view.php/237/132/mvcc-survey.pdf
The interesting thing about this to me is that these features are
being added to programming languages, which gives a much nicer and
more flexible model for handling data synchronization among
concurrent processes.
--Levi
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