On 01/23/2013 05:17 PM, Robert Haas wrote:
> Of course, I have no evidence that that will happen. But it is a
> really big piece of code, and therefore unless you are superman, it's
> probably got a really large number of bugs. The scary thing is that
> it is not as if we can say, well, this is a big hunk of code, but it
> doesn't really touch the core of the system, so if it's broken, it'll
> be broken itself, but it won't break anything else. Rather, this code
> is deeply in bed with WAL, with MVCC, and with the on-disk format of
> tuples, and makes fundamental changes to the first two of those. You
> agreed with Tom that 9.2 is the buggiest release in recent memory, but
> I think logical replication could easily be an order of magnitude
> worse.
Command Prompt worked for YEARS to get logical replication right and we
never got it to the point where I would have been happy submitting it to
-core.
It behooves .Org to be extremely conservative about this feature.
Granted, it is a feature we should have had years ago but still. It is
not a simple thing, it is not an easy thing. It is complicated and
complex to get correcft.
JD
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