[postgis-devel] Motion: vote for considering SRID <= 0 as "unknown"

Sandro Santilli strk at keybit.net
Tue Oct 4 11:17:27 PDT 2011


On Tue, Oct 04, 2011 at 08:10:30PM +0200, aperi2007 wrote:
> ah, ok.
> 
> In the section:
> Implementation-defined elements
> 
> there is this:
> 
> >...
> >92) Subclause 13.1.5, "ST_SRID Method"
> >a) Description 2)
> >A spatial reference system identifier that is equal to 0 (zero) is
> >implementation-defined.
> >...
> 
> 
> and this:
> 
> >...
> >7) Subclause 13.1.5, "ST_SRID Method"
> >a) Description 2)
> >A spatial reference system identifier that is not equal to 0 (zero)
> is >implementation-dependent.
> >....
> 
> not equal to 0. This mean not only >0 but also <0
> this could mean "-1" is ok ?

Everything is ok. Only:
  =0 is implementation-defined 
 <>0 is implementation-dependent

--strk; 

  ()   Free GIS & Flash consultant/developer
  /\   http://strk.keybit.net/services.html



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