Re: Powergres (was Re: Errors on restoring a 7.1.2 dump

On Thu, 2003-09-04 at 01:57, Tom Lane wrote:
> Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> writes:
> > What makes Powergres special? From looking at the pretty pictures
> > (and ignoring the squiggly lines), it looks like replication.
>
> Not sure if there's any replication in it. My understanding is that
> it amounts to ripping out the lowest layers of the Postgres code and
> bolting in Fujitsu's proprietary storage engine (originally developed
> for some other DBMS) instead. The Fujitsu people say that this gives
> some significant performance improvements, and for all I know it might
> do replication too. But I've not yet seen a straight answer about
> whether their code preserves MVCC semantics, rollback-able DDL changes,
> and other nice stuff that the regular PG code provides. This report
> from Stuart isn't exactly giving me warm fuzzies about the robustness
> of Fujitsu's code, either.

Here's what someone sent me off-list:
http://osb.sra.co.jp/PowerGres/function-en.php

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Ron Johnson, Jr. ron(dot)l(dot)johnson(at)cox(dot)net
Jefferson, LA USA

"Man, I'm pretty. Hoo Hah!"
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