| From: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
|---|---|
| To: | Isaac Ben <ib(dot)zero(at)gmail(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: column limit |
| Date: | 2007-01-25 22:07:29 |
| Message-ID: | 20070125220729.GA987@svana.org |
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| Thread: | |
| Lists: | pgsql-general |
On Thu, Jan 25, 2007 at 10:47:50AM -0700, Isaac Ben wrote:
> The data is gene expression data with 20,000 dimensions. Part of the
> project I'm working on is to discover what dimensions are truly
> independent. But to start with I need to have
> all of the data available in a master table to do analysis on. After
> the analysis I hope to derive subsets of much lower dimensionality.
Even if you managed to hack the server enough to make that work (which
is debatable) performance is going to suck. The system is simply not
setup for that kind of thing. Use either arrays, or normalize the data
into a seperate table.
Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.
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