XA

josh(at)agliodbs(dot)com (Josh Berkus) writes:
> Chris,
>
>> Two phase commit is a prerequisite for doing distributed transactions,
>> and XA is a particular standard to which the 2PC support does not, at
>> this point, conform.
>
> Eh? I was under the impression that XA was implemented in the JDBC
> layer, not in the backend.

There was an JDBC-based *attempt* at an XA handler; it wasn't fully
functional, which essentially means it wasn't really XA.

When the 2PC discussion was going on, it definitely came up in the
discussion that this was a prerequisite to doing XA properly. It
might not be forcibly necessary in the strictest sense, but 2PC is
certainly one of the normal means for synchronizing distributed
transactions...
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