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Re: pg_attribute.attnum - wrong column ordinal?

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On tor, 2009-12-03 at 10:09 -0500, Tom Lane wrote:
> Alvaro Herrera <alvherre@xxxxxxxxxxxxxxxxx> writes:
> > Should we recast the attributes and columns views in information_schema?
> > I notice they still use attnum.
> 
> I'd vote against it, at least until we have something better than a
> row_number solution.  That would create another huge performance penalty
> on views that are already ungodly slow.

Should be easy to test the performance impact of this, since the limit
for columns per table is 1600.


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