Re: crosstab - Mailing list pgsql-general

From A.M.
Subject Re: crosstab
Date
Msg-id 16BCF757-06E1-47C2-8E59-ACD7FEBE6A3B@themactionfaction.com
Whole thread Raw
In response to Re: crosstab  (Aram Fingal <fingal@multifactorial.com>)
Responses Re: crosstab
List pgsql-general
On Sep 4, 2012, at 4:30 PM, Aram Fingal wrote:

>
> On Sep 4, 2012, at 4:18 PM, Misa Simic wrote:
>
>> Inside PL/R you can take the same table as it is (unpivoted) as your data.frame and then pivot it inside R using
reshapepackage,,, And then inside PL/R function do whatever you would like to do with data i.e export to whatever... -
butyou cant return it pivoted as result of Postgres function.. 
>
>  Okay, you just answered my question in reply to Joe Conway (crossed in the mail).  So I could just use write.table()
fromR to save to disk or I might even have the PL/R procedure write a heatmap or PCA plot to disk, again without
returningany rows to PostgreSQL. 
>
> -Aram

Or you could return the heatmap/plot as BYTEA data or use arrays as necessary.

Cheers,
M





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