Open phinjensen opened 6 years ago
original author: David Christensen
date: 2011-09-28T12:18:02-04:00
Greg,
Was this change made due to just being a backwards-compatible syntax fix that would work with all versions of PG that Bucardo works with, or is there some incompatibility with true SERIALIZABLE mode that you would need to avoid that in 9.1? For that matter, what is the difference between REPEATABLE READ/SERIALIZABLE as far as Bucardo is concerned?
David
original author: Greg Sabino Mullane
date: 2011-09-28T12:22:00-04:00
The former: I've not had time yet to see exactly if there are cases where true serializability would benefit Bucardo. I suspect not, as the main reason we are using it is to to get a consistent snapshot, not to order transactions. Bucardo 4 had many seriazliable errors on busy systems, but that should be much less in Bucardo 5. It would be nice to know exactly how much of an overhead SSI is: the docs only say there is some...
Comments for https://www.endpointdev.com/blog/2011/09/postgresql-allows-for-different/ By Greg Sabino Mullane
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