| From: | "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com> |
|---|---|
| To: | "Markus Schiltknecht" <markus(at)bluegap(dot)ch> |
| Cc: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, josh(at)agliodbs(dot)com, pgsql-hackers(at)postgresql(dot)org, "Mike Rylander" <mrylander(at)gmail(dot)com>, "Qingqing Zhou" <zhouqq(at)cs(dot)toronto(dot)edu> |
| Subject: | Re: Support Parallel Query Execution in Executor |
| Date: | 2006-04-08 17:45:24 |
| Message-ID: | 36e682920604081045v1cd0c1der3662933bf298a233@mail.gmail.com |
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| Lists: | pgsql-hackers pgsql-patches |
On 4/8/06, Markus Schiltknecht <markus(at)bluegap(dot)ch> wrote:
> ACK. As long as processes, signals and shared memory are used this could
> be as portable as PostgreSQL is now.
This is certainly the case.
> Ehm.. which additional I/O cost? Or do you count inter-process
> communication to I/O?
Inter-process will add a minimal amount, but if it's done correctly,
you'll still end up ahead.
> I'd like to help teaching PostgreSQL the art of parallel query
> execution.
Cool, we're not at the communication-level yet, but your help would be
appreciated.
> In case you're interested I'll compile a patch for review.
Surely!
--
Jonah H. Harris, Database Internals Architect
EnterpriseDB Corporation
732.331.1324
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