On Wed, Oct 26, 2011 at 10:15 AM, Simon Riggs <simon@xxxxxxxxxxxxxxx> wrote:
On Wed, Oct 26, 2011 at 2:57 PM, Lee HachadoorianNo, this is a technology problem.
<lee.hachadoorian@xxxxxxxxx> wrote:
> Interesting. Although your example of one, 100000-dimension array works,
> five hundred 2-dimension arrays does not work. I can do the SELECT, but the
> CREATE TABLE fails:
>
> ERROR: row is too big: size 9024, maximum size 8160
> SQL state: 54000
>
> David has already hit the nail on the head in terms of this being a
> "political" problem rather than a technology problem. I'm open to ideas, but
> I realize there might be no other answer than "No one in their right mind
> should do this."
Toast pointers are 20 bytes per column, so with 500 columns that is
10000 bytes - which will not fit in one block.
If you wish to fit this in then you should use a 2 dimensional array,
which will then be just 1 column and your data will fit.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
Very useful to know. Thank you.
--Lee
--
Lee Hachadoorian
PhD, Earth & Environmental Sciences (Geography)
Research Associate, CUNY Center for Urban Research
http://freecity.commons.gc.cuny.edu/
