On 9/17/14 9:07 AM, Matthew Kelly wrote:
> Here is where I think the timezone and PostGIS cases are fundamentally 
> different:
> I can pretty easily make sure that all my servers run in the same timezone.  
> That's just good practice.  I'm also going to install the same version of 
> PostGIS everywhere in a cluster.  I'll build PostGIS and its dependencies 
> from the exact same source files, regardless of when I build the machine.

I wrote time zone *database*, not time zone.  The time zone database  is
(in some configurations) part of glibc.

I also wrote PostGIS dependent libraries, not PostGIS itself.  If you
are comparing RHEL 5 and 6, as you wrote elsewhere, then some of those
will most likely be different.  (Heck, glibc could be different.  Is
glibc never allowed to fix insufficiencies in its floating-point
implementation, for example?)

Also, there is nothing that guarantees that the PostGIS version will be
the same on both sides.


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