[postgis-users] How to select the highest y-value within all stored objects

[Simon Schneider]

Hi,

I have a table storing polygon objects and I'm looking for a way to get 
the highest y-coordinate within all these objects.

I know which polygon contains this value but I'm wondering whether there 
is a way to build a query which delivers only coordinates and not the 
polygon itself.


Cheers,
Simon